Publication List of Electrochemical Energy Lab

Publication List (from 1999 to present)

Last updated: February 2025

2025

Sho Hideshima,* Yusuke Kawasaki, Daisuke Takimoto, Yury Gogotsi, Wataru Sugimoto,* "Size-dependent electrochemical properties of vertically aligned MXene electrodes for fast Li-ion storage", Electrochim. Acta, in press (2025). DOI: 10.1016/j.electacta.2025.145849

2024

Masanobu Chiku,* Mozaffar Abdollahifar, Thierry Brousse, George Z. Chen, Olivier Crosnier, Bruce Dunn, Krzysztof Fic, Chi-Chang Hu, Paweł Jeżowski, Adam Maćkowiak, Katsuhiko Naoi, Nobuhiro Ogihara, Naohisa Okita, Masashi Okubo, Wataru Sugimoto, Nae-Lih Wu, "Redox Materials for Electrochemical Capacitors", Electrochemistry, 94(7), 074002 (2024). DOI: 10.5796/electrochemistry.24-70054. OPEN access
Yusuke Sato, Omar Gómez Rojas, Sho Makino, Dai Mochizuki, Sho Hideshima, Wataru Sugimoto,* "Li-metal free “in aqua” lithiation and re-lithiation of protected graphite anode for 4-V class aqueous lithium-ion capacitor", J. Power Sources, 609, 234684 (2024). DOI: 10.1016/j.jpowsour.2024.234684
Sho Hideshima,* Yuta Ogata, Daisuke Takimoto, Yury Gogotsi, Wataru Sugimoto,* "Vertically aligned MXene bioelectrode prepared by freeze-drying assisted electrophoretic deposition for sensitive electrochemical protein detection", Biosensors and Bioelectronics, 250, 116036 (2024). DOI: 10.1016/j.bios.2024.116036.OPEN access

2023

Daisuke Takimoto,* Keisuke Suzuki, Sho Hideshima, and Wataru Sugimoto, "Origin of the Adsorption-Controlled Redox Behavior of Quinone-Based Molecules: Importance of the Micropore Width", Electrochemistry, 91(7), 077006 (2023). DOI: 10.5796/electrochemistry.23-00052.OPEN access
Yoshiaki Ishihara, Takanori Koitaya, Yuto Hamahiga, Wataru Sugimoto, Susumu Yamamoto, Iwao Matsuda, Jun Yoshinobu, Ryo Nouchi*, "In Situ Electrical Detection of Methane Oxidation on Atomically Thin IrO₂ Nanosheet Films Down to Room Temperature", Adv. Mater. Interfaces, 10(18), 2300258 (2023). DOI: 10.1002/admi.202300258. OPEN access
Daisuke Takimoto,* Keisuke Suzuki, Sho Hideshima, Wataru Sugimoto, "Confinement Effects on the Rate Performance of Redox Active Molecules for Pseudocapacitive Flowable Electrodes", Electrochemistry, 91(4), 047005 (2023). DOI: 10.5796/electrochemistry.23-00024 OPEN access
Daisuke Takimoto,* Shino Toma, Yuya Suda, Tomoki Shirokura, Yuki Tokura, Katsutoshi Fukuda, Masashi Matsumoto, Hideto Imai, and Wataru Sugimoto,* "Platinum nanosheets synthesized via topotactic reduction of single-layer platinum oxide nanosheets for electrocatalysis", Nat. Commun., 14, 19 (2023). https://doi.org/10.1038/s41467-022-35616-4 OPEN access

2022

Kazutaka Sonobe,* Satoshi Tominaka,* and Wataru Sugimoto, "Symmetric Breakage-Induced Semimetallic State: Polymorphism in Ruthenate Nanosheets", J. Am. Chem. Soc., 144(33), 15008-15012 (2022). https://doi.org/10.1021/jacs.2c05951
Daisuke Takimoto,* Keisuke Suzuki, Ryusuke Futamura, Taku Iiyama, Sho Hideshima, and Wataru Sugimoto, "Zero-Overpotential Redox Reactions of Quinone-Based Molecules Confined in Carbon Micropores", ACS Appl. Mater. Interfaces, 14(27), 31131-31139 (2022). https://doi.org/10.1021/acsami.2c07429
Ryota Saito, Hideki Tanaka, Katsuya Teshima, Daisuke Takimoto, Sho Hideshima, and Wataru Sugimoto*, "Enhancement in the Charge-Transfer Kinetics of Pseudocapacitive Iridium-Doped Layered Manganese Oxide" Inorg. Chem. 61(11), 4566-4571 (2022). https://doi.org/10.1021/acs.inorgchem.1c0300

2021

Yamato Haniu, Hiroki Nara, Seongki Ahn, Toshiyuki Momma,* Wataru Sugimoto and Tetsuya Osaka, "AlCl₃-Graphite Intercalation Compounds as Negative Electrode Materials for Lithium-Ion Capacitors . J. Mater. Chem. A, 9(48), 27459–27467 (2021).DOI OPEN access
Daisuke Takimoto,* Sho Hideshima, and Wataru Sugimoto, "Fabrication of Three-Dimensional Porous Materials with NiO Nanowalls for Electrocatalytic Oxygen Evolution", ACS Applied Nano Materials, 4(8), 8059-8065 (2021).DOI
Wataru Sugimoto* and Daisuke Takimoto, "Platinum Group Metal-based Nanosheets: Synthesis and Application towards Electrochemical Energy Storage and Conversion", Chem. Lett., 50, 1304-1312 (2021).DOI OPEN access [Highlight Review (invited paper)]
Open Access Seongki Ahn, Minori Fukushima, Hiroki Nara, Toshiyuki Momma*, Wataru Sugimoto, Tetsuya Osaka, "Effect of fluoroethylene carbonate and vinylene carbonate additives on full-cell optimization of Li-ion capacitors", Electrochem. Commun., 122 106905 (2021).

2020

Open AccessMuhammad Shuaib Khan,* Hyung-Jun Kim, Yoon-Hyun Kim, Yasuo Ebina, Wataru Sugimoto, Takayoshi Sasaki, and Minoru Osada*, "Scalable Design of Two‐Dimensional Oxide Nanosheets for Construction of Ultrathin Multilayer Nanocapacitor",Small, 16(39), 2003485, (2020).
Seongki Ahn, Yusuke Nakamura, Hiroki Nara, Toshiyuki Momma*, Wataru Sugimoto, Tetsuya Osaka, " Effect of Mass Balancing on Cell Performance and Electrochemical Investigation of Sn–Ni Alloy as Anode for Li-Ion Capacitors", J. Electrochem. Soc., 167(13), 130512 (2020).
Open AccessTomohiro Yoshida, Daisuke Takimoto, Dai Mochizuki, and Wataru Sugimoto*, "Size Dependent Fast Li Ion Storage Based on Size Regulated TiO₂(B) Nanosheet Electrodes with Vertical, Horizontal and Random Alignment", Electrochemistry, 88(4), 305-309 (2020).
Hiroshi Fukunaga*, Kazuhiro Kachi, Daisuke Takimoto, Dai Mochizuki, Wataru Sugimoto, "Direct preparation of core-shell platinum cathode in membrane electrode assembly catalyst layer for polymer electrolyte fuel cell", Int. J. Hydrogen Energy, 45, 14547 (2020).
Open Access Yusuke Sato, Sho Makino, Dai Mochizuki, Sho Hideshima*, and Wataru Sugimoto*, "Improved Water-stable Protected Anodes with Low Resistance for Aqueous Energy Storage Devices", Electrochemistry, 88(3), 139-142 (2020).
Open Access Ryota Saito, Yusuke Sato, Daisuke Takimoto, Sho Hideshima, and Wataru Sugimoto*, "Synergetic Effect of RuO₂ Nanosheets as a Redox Active Binder for Aqueous Electrochemical Capacitors: The Case of MnO₂", Electrochemistry, 88(3), 107-111 (2020). [awarded Best Paper of 2020]
Open Access Yusuke Nakamura, Hiroki Nara*, Seongki Ahn, Toshiyuki Momma,* Wataru Sugimoto and Tetsuya Osaka, "Influence of Li-salts on Cycle Durability of Sn-Ni Alloy Anode for Lithium-ion Capacitor", Electrochemistry, 88(2), 74-78 (2020).
Seongki Ahn, Yamato Haniu, Hiroki Nara, Toshiyuki Momma,* Wataru Sugimoto, and Tetsuya Osaka, "Synthesis of Stacked Graphene-Sn Composite as a High-Performance Anode for Lithium-Ion Capacitors", J. Electrochem. Soc., 167(4), 040519 (2020).

2019

S. Ahn, Y. Nakamura, H. Nara, T. Momma, W. Sugimoto, T. Osaka, "Application of Sn-Ni Alloy as an Anode for Lithium-Ion Capacitors with Improved Volumetric Energy and Power Density", J. Electrochem. Soc. 166 (15), A3615–A3619 (2019).
Open AccessDaisuke Takimoto*, Wataru Sugimoto*, Qiuyi Yuan, Naoki Takao, Takanori Itoh, Truong Vinh Truong Duy, Tsukuru Ohwaki, Hideto Imai*, "Two-Dimensional Effects on the Oxygen Reduction Reaction and Irreversible Surface Oxidation of Metallic Ru Nanosheets and Nanoparticles", ACS Appl. Nano Mater., 2(9), 5743-5751 (2019). [Selected as ACS Editors' Choice] OPEN access
Open AccessSeongki Ahn, Toshiyuki Momma*, Wataru Sugimoto, and Tetsuya Osaka," Electrodeposited Si˗O˗C as a High-Rate Performance Anode for Li˗ion Capacitor", J Electrochem Soc. 166(12), A2683-A2688 (2019)
Daisuke Takimoto, Yosuke Toda, Satoshi Tominaka, Dai Mochizuki, and Wataru Sugimoto*, "Conductive Nanosized Magnéli-Phase Ti₄O₇ with a Core@Shell Structure", Inorg. Chem., 58(10), 7062-7068 (2019).
David S. Ashby, Ryan H. DeBlock , Christopher S. Choi, Wataru Sugimoto, and Bruce Dunn*, "Electrochemical and Spectroscopic Analysis of the Ionogel–Electrode Interface", ACS Appl. Mater. Interfaces, 11(12), 12088–12097 (2019).
Dai Mochizuki, Ryo Tanaka, Sho Makino, Yusuke Ayato, Wataru Sugimoto*, "Vertically Aligned Reduced Graphite Oxide Nanosheet Film and its Application in High-Speed Charge/Discharge Electrochemical Capacitor", ACS Appl. Energy Mater., 2(2), 1033-1039 (2019).

2018

Open AccessWataru Sugimoto, "Conducting Nanosheets and Nanoparticles for Supercapacitors and Fuel Cell Electrocatalysts", Electrochemistry, 86(6), 281–290 (2018).
Chunxiang Dall'Agnese, Yohan Dall'Agnese, Babak Anasori, Wataru Sugimotoab and Shogo Mori,* "Oxidized Ti₃C₂ MXene nanosheets for dye-sensitized solar cells", New J. Chem., 42(20), 16446-16450 (2018).
Jeerapat Nutariya,* Eri Kuroiwa, Daisuke Takimoto, Zhongrong Shen, Dai Mochizuki, Wataru Sugimoto,* "Model electrode study of Ru@Pt core-shell nanosheet catalysts: Pure two-dimensional growth via surface limited redox replacement", Electrochim. Acta, 283, 826-833 (2018).
Ming Zhang, Sho Makino, Dai Mochizuki, Wataru Sugimoto*, "High-performance hybrid supercapacitors enabled by protected lithium negative electrode and “water-in-salt” electrolyte", J. Power Sources, 396, 498-505 (2018).
Pierre-Yves Olu, Tomohiro Ohnishi, Dai Mochizuki, Wataru Sugimoto*, "Uncovering the real active sites of ruthenium oxide for the carbon monoxide electro-oxidation reaction on platinum: The catalyst acts as a co-catalyst", J. Electroanal. Chem., 810, 109-118 (2018).

2017

Open AccessDaisuke Takimoto, Yusuke Ayato, Dai Mochizuki, and Wataru Sugimoto,* "Lateral Size Effects of Two-dimensional IrO₂ Nanosheets towards the Oxygen Evolution Reaction Activity", Electrochemistry, 85(12), 779-783 (2017).
Sho Makino, Dai Mochizuki, Wataru Sugimoto,* "4 V Aqueous hybrid supercapacitors based on dual electrolyte technologies", Curr. Opin. Electrochem., 6(1), 127-130 (2017).
A. Balducci, D. Belanger, T. Brousse, J.W. Long, W. Sugimoto, "Perspective—A Guideline for Reporting Performance Metrics with Electrochemical Capacitors: From Electrode Materials to Full Devices", J. Electrochem. Soc., 164(7), A1487–A1488 (2017).
Wataru Sugimoto and Dai Mochizukii, "Energy Storage Systems", in Inorganic Nanosheets and Nanosheet-Based Materials, T. Nakato, J. Kawamata, S. Takagi (Eds.), Springer Japan, Tokyo, 2017: pp. 315–329.
Daisuke Takimoto, Katsutoshi Fukuda, Shu Miyasaka, Takanobu Ishida, Yusuke Ayato, Dai Mochizuki, Wataru Shimizu, Wataru Sugimoto*, "Synthesis and Oxygen Electrocatalysis of Iridium Oxide Nanosheets", Electrocatalysis, 8, 144-150 (2017).
Daisuke Takimoto, Tomohiro Ohnishi, Jeerapat Nutariya, Zhongrong Shen, Yusuke Ayato, Dai Mochizuki, Arnaud Demortière, Adrien Boulineau, Wataru Sugimoto*, "Ru-core@Pt-shell nanosheet for fuel cell electrocatalysts with high activity and durability", J. Catal., 345, 207–215 (2017). [Selected as Featured Article.] CorrigendumDOI
Muhammad Shuaib Khan, Minoru Osada*, Hyung-Jun Kim, Yasuo Ebina,Wataru Sugimoto, and Takayoshi Sasaki, "High-temperature dielectric responses in all-nanosheet capacitors", Jpn. J. Appl. Phys., 56, 06GH09 (2017).

2016

Thierry Brousse, Daniel Bélanger, Kazumi Chiba, Minato Egashira, Frédéric Favier, Jeffrey Long, John R. Miller, Masayuki Morita, Katsuhiko Naoi, Patrice Simon, Wataru Sugimoto, "Materials for Electrochemical Capacitors", in Springer Handbook of Electrochemical Energy, 1st ed., Cornelia Breitkopf, Karen Swider-Lyons (Eds.), Springer-Verlag Berlin Heidelberg, pp. 495-561 (2017).
Pierre-Yves Olu,* Tomohiro Ohnishi, Yusuke Ayato, Dai Mochizuki, Wataru Sugimoto,* "Insights into the enhanced tolerance to carbon monoxide on model tungsten trioxide-decorated polycrystalline platinum electrode", Electrochem. Commun., 71, 69-72 (2016).
Sho Makino, Rie Yamamoto, Shigeyuki Sugimoto, and Wataru Sugimoto,* "Room temperature performance of 4 V aqueous hybrid supercapacitor using multi-layered lithium-doped carbon negative electrode", J. Power Sources, 326, 711-716 (2016).
Open AccessDaisuke Takimoto, Tomohiro Ohnishi, Yusuke Ayato, Dai Mochizuki, and Wataru Sugimoto,* "Suppression of CO Adsorption on PtRu/C Catalysts Modified with Metallic Ruthenium Nanosheets", J. Electrochem. Soc., 163(5), F367-F371 (2016).
Hyung-Jun Kim, Minoru Osada, Yasuo Ebina, Wataru Sugimoto, Kazuhito Tsukagoshi, and Takayoshi Sasaki "Hunting for Monolayer Oxide Nanosheets and Their Architectures", Sci. Rep., 6, 19402 (2016).
Shuwen Wang, Aarón Morelos-Gómez, Zhongwei Lei, Mauricio Terrones, Kenji Takeuchi, Wataru Sugimoto, Morinobu Endo, Katsumi Kaneko,* "Correlation in structure and properties of highly-porous graphene monoliths studied with a thermal treatment method", Carbon, 96, 174-183 (2016).
Open AccessDaisuke Takimoto, Christophe Chauvin, and Wataru Sugimoto,* "RuO₂ Nanosheet Modified Pt₃Co/C Cathode: Mitigating Activity Loss at High Temperature and High Potential Conditions", J. Electrochem. Soc., 163(2), F11–F15 (2016).

2015

Masaki Kitahara, Saori Kubara, Azusa Takai, Daisuke Takimoto, Shinpei Enomoto, Yusuke Yamauchi, Wataru Sugimoto, and Kazuyuki Kuroda, "Preparation of Mesoporous Bimetallic Au–Pt with a Phase- Segregated Heterostructure Using Mesoporous Silica", Chem., Eur. J., 21(52), 19142-19148 (2015)
Yusuke Ayato and Wataru Sugimoto, "Oxygen Reduction Reaction of Hemoglobin on Indium-Tin-Oxide Electrodes and Its Application to Biofuel Cell Cathode", ECS Trans., 66(39), 29–37 (2015).
Open Access Daisuke Takimoto, Tomohiro Ohnishi, and Wataru Sugimoto*, "Suppression of CO Adsorption on PtRu/C and Pt/C with RuO2 Nanosheets", ECS Electrochem. Lett., 4(5), F35-F37 (2015).
Open AccessSho Makino, Takayuki Ban and Wataru Sugimoto*, "Towards Implantable Bio-Supercapacitors: Pseudocapacitance of Ruthenium Oxide Nanoparticles and Nanosheets in Acids, Buffered Solutions, and Bioelectrolytes", J. Electrochem. Soc., 162(5), A5001-A5006 (2015).

2014

Zhongwei Lei, Takahiro Mitsui, Hiroki Nakafuji, Masayuki Itagaki, and Wataru Sugimoto*, "Achieving 100% Utilization of Reduced Graphene Oxide by Layer-by-Layer Assembly: Insight into the Capacitance of Chemically-Derived Graphene in Monolayer State", J. Phys. Chem. C, 118(13), 6624–6630 (2014).
Chengxiang Wang, Minoru Osada, Yasuo Ebina, Bao-Wen Li, Kosho Akatsuka, Katsutoshi Fukuda, Wataru Sugimoto, Renzhi Ma, and Takayoshi Sasaki* "All-Nanosheet Ultrathin Capacitors Assembled Layer-by-Layer via Solution-Based Processes", ACS Nano, 8(3), 2658-2666 (2014).
Junfeng Zhang, Takaaki Nakai, Masaharu Uno, Yoshinori Nishiki, Wataru Sugimoto*, "Preferential {100} etching of boron-doped diamond electrodes and diamond particles by CO2 activation", Carbon,70, 207-214 (2014).[selected as "Cover photo for Vol. 72"]
Qingfeng Liu, Christophe Chauvin and Wataru Sugimoto*, "Evidence of Strong Metal-Support Interaction between Pt and Crystalline RuO₂ Nanosheets by In-Situ AFM", J. Electrochem. Soc., 161(3), F360-F363 (2014).
Christophe Chauvin, Takahiro Saida and Wataru Sugimoto*, "Influence of the RuO₂ Nanosheet Content in RuO₂ Nanosheet-Pt/C Composite Toward Improved Performance of Oxygen Reduction Electrocatalysts", J. Electrochem. Soc., 161(3), F318-F322 (2014).
Qingfeng Liu, Koodlur S. Lokesh, Christophe Chauvin and Wataru Sugimoto*, "Model Electrode Studies of the Electrostatic Interaction between Electrochemically Dissolved Pt Ions and RuO₂ Nanosheets", J. Electrochem. Soc., 161(3), F259-F262 (2014).
Wataru Sugimoto, "Graphene (or Reduced Graphite Oxide Nanosheets)", in Encyclopedia of Applied Electrochemistry, (Eds.: Gerhard Kreysa, Ken-ichiro Ota, Robert F. Savinell) pp. 954-963 (2014).
Wataru Sugimoto, "Ruthenium Oxides as Supercapacitor Electrodes", in Encyclopedia of Applied Electrochemistry, (Eds.: Gerhard Kreysa, Ken-ichiro Ota, Robert F. Savinell) pp. 1813-1821 (2014).

2013

Junfeng Zhang, Takaaki Nakai, Masaharu Uno, Yoshinori Nishiki, Wataru Sugimoto*, "Effect of the boron content on the steam activation of boron-doped diamond electrodes", Carbon, 65, 206-213 (2013).
Open AccessZhongwei Lei, Toshio Sakai, and Wataru Sugimoto*, "Lateral Size Effect on Electrochemical Capacitor Performance of Reduced Graphite Oxide Nanosheets", Electrochemistry, 81(10), 873–876 (2013).
Open AccessSho Makino, Takayuki Ban, and Wataru Sugimoto*, "Electrochemical Capacitor Behavior of RuO2 Nanosheets in Buffered Solution and Its Application to Hybrid Capacitor", Electrochemistry, 81(10), 795–797 (2013).
Open AccessWataru Shimizu, Yuto Shinohara, and Wataru Sugimoto, "Colossal Change in Capacitance of VO2 near the Metal-Insulator Transition", Electrochemistry, 81(10), 787–788 (2013).
Wataru Shimizu, Sho Makino, Keita Takahashi, Nobuyuki Imanishi, Wataru Sugimoto*, "Development of a 4.2 V Aqueous Hybrid Electrochemical Capacitor Based on MnO₂ Positive and Protected Li Negative Electrodes", J. Power Sources, 241, 572-577 (2013).
Yoshio Takasu*, Hiroshi Fukunaga, Hong-Sheng Yang, Tatsuya Ohashi, Masatoshi Suzuki, Wataru Sugimoto, "A gas-diffusion cathode coated with oxide-catalyst for polymer electrolyte fuel cells using neither platinum catalyst nor carbon catalyst-support", Electrochim. Acta, 105, 224-229 (2013).
Daisuke Takimoto, Christophe Chauvin, Wataru Sugimoto*, "Improving ORR activity and durability of 1.5 nm Pt by addition of ruthenium oxide nanosheets", Electrochem. Commun., 33, 123-126 (2013).Erratum
Christophe Chauvin, Qingfeng Liu, Takahiro Saida, Koodlur Sannegowda Lokesh, Toshio Sakai, and Wataru Sugimoto, "Effect of Nanosheet Size on Activity and Durability of RuO₂ Nanosheet Pt/C Catalyst", ECS Trans., 50(2), 1583-1588 (2013).
Katsutoshi Fukuda,* Jun Sato, Takahiro Saida, Wataru Sugimoto,* Yasuo Ebina, Tatsuo Shibata, Minoru Osada, and Takayoshi Sasaki, "Fabrication of Ruthenium Metal Nanosheets via Topotactic Metallization of Exfoliated Ruthenate Nanosheets", Inorg. Chem., 52(5), 2280-2282 (2013).
Sho Makino, Yusuke Yamauchi,* and Wataru Sugimoto*, "Synthesis of Electro-deposited Ordered Mesoporous RuO_x via Lyotropic Liquid Crystal and Application towards Micro-supercapacitors", J. Power Sources, 227, 153-160 (2013).

2012

Sho Makino, Yuto Shinohara, Takayuki Ban, Wataru Shimizu, Keita Takahashi, Nobuyuki Imanishi, and Wataru Sugimoto*, "4-V Class Aqueous Hybrid Electrochemical Capacitor with Battery-like Capacity", RSC Advances, 2(32), 12144-12147 (2012).[introduced as "HOT ARTICLE"]
Tatsuya Ohashi, Wataru Sugimoto, Yoshio Takasu*, "Catalytic etching of synthetic diamond crystallites by iron", Appl. Surf. Sci., 258(20), 8128-8133 (2012).
Wataru Sugimoto,* Sho Makino, Ryota Mukai, Yoshiaki Tatsumi, Katsutoshi Fukuda, Yoshio Takasu, Yusuke Yamauchi,* "Synthesis of Ordered Mesoporous Ruthenium by Lyotropic Liquid Crystals and Its Electrochemical Conversion to Mesoporous Ruthenium Oxide with High Surface Area", J. Power Sources, 204, 244-248 (2012).
Katsutoshi Fukuda,* Kosho Akatsuka, Yasuo Ebina, Minoru Osada, Wataru Sugimoto, Mutsumi Kimura, and Takayoshi Sasaki,* "Photochromogenic Nanosheet Crystallites of Tungstate with a 2D Bronze Structure", Inorg. Chem., 51(3), 1540-1543, (2012).

2011

Jeffrey W. Long, Daniel Belanger, Thierry Brousse, Wataru Sugimoto, Megan B. Sassin, and Olivier Crosnier, "Asymmetric electrochemical capacitors. Stretching the limits of aqueous electrolytes", MRS Bulletin, 36(7), 513-522 (2011).
Tatsuya Ohashi, Wataru Sugimoto and Yoshio Takasu*, "Catalytic etching of {100}-oriented diamond coating with Fe, Co, Ni, and Pt nanoparticles under hydrogen", Diamond and Related Materials, 20(8), 1165-1170 (2011).
Tatsuya Ohashi,Junfeng Zhang,Yoshio Takasu, Wataru Sugimoto,* "Steam activation　of　boron　doped　diamond　electrodes", Electrochim. Acta, 56(16), 5599-5604 (2011).
Open AccessJun Sato, Kazuki Higurashi, Katsutoshi Fukuda and Wataru Sugimoto,* "Oxygen Reduction Reaction Activity of Pt/Graphene Composites with Various Graphene Size", Electrochemistry, 79(5), 337-339 (2011).
Open AccessTakahiro Saida, Yoshio Takasu, and Wataru Sugimoto*, "Methanol Adsorption and Oxidation Behavior of Various Nanostructured Ruthenium-oxides in Acidic Electrolyte", Electrochemistry, 79(5), 371-373 (2011).
Tatsuya Ohashi, Wataru Sugimoto, Yoshio Takasu*, "Self-Embedment of Small Rectangular Parallelepiped Platinum Particle Array in Etch Pits on {100} Planes of Diamond Crystallites", Bull. Chem. Soc. Jpn., 84(4), 276-278 (2011). [chosen as "SELECTED PAPER"]
Jun Sato, Yoshio Takasu, Katsutoshi Fukuda, Wataru Sugimoto*, "Graphene Nanoplatelets via Exfoliation of Platelet Carbon Nanofibers and Its Electric Double Layer Capacitance", Chem. Lett., 40(1), 44-45 (2011).

2010

Jun Sato, Hisato Kato, Mutsumi Kimura, Katsutoshi Fukuda,* Wataru Sugimoto*, "Conductivity of Ruthenate Nanosheets Prepared via Electrostatic Self-Assembly: Characterization of Isolated Single Nanosheet Crystallite to Mono- and Multilayer Electrodes", Langmuir, 26(23),18049-18054 (2010).
Takahiro Saida, Naoki Ogiwara, Yoshio Takasu and Wataru Sugimoto*, "Titanium Oxide Nanosheet Modified PtRu/C Electrocatalyst for Direct Methanol Fuel Cell Anodes", J. Phys. Chem. C, 114(31), 13390-13396 (2010).
Yoshio Takasu,* Wataru Sugimoto, Yoshinori Nishiki, Shuji Nakamatsu, "Structural analyses of RuO₂-TiO₂/Ti and IrO₂-RuO₂-TiO₂/Ti anodes used in industrial chlor-alkali membrane processes, J. Appl. Electrochem., 40(10), 1789-1795 (2010).
Yoji Doi, Azusa Takai, Sho Makino, Logudurai Radhakrishnan, Norihiro Suzuki, Wataru Sugimoto,* Yusuke Yamauchi,* and Kazuyuki Kuroda, "Synthesis of Mesoporous Carbon Using a Fullerenol-based Precursor Solution via Nanocasting with SBA-15", Chem. Lett., 39(7), 777-779 (2010).
Yoshio Takasu,* Masatoshi Suzuki, Hongsheng Yang, Tatsuya Ohashi, Wataru Sugimoto, "Oxygen reduction characteristics of several valve metal oxide electrodes in HClO₄ solution", Electrochim. Acta, 55(27), 8220-8229 (2010).
Sho Makino, Yoshio Takasu, and Wataru Sugimoto*, "Electrochemical Capacitor Properties of NiO in Ionic Liquids", Chem. Lett., 39(6), 544-545 (2010).
Katsutoshi Fukuda, Takahiro Saida, Jun Sato, Mihoko Yonezawa, Yoshio Takasu and Wataru Sugimoto,* "Synthesis of Nanosheet Crystallites of Ruthenate with an α-NaFeO₂-Related Structure and Its Electrochemical Supercapacitor Property", Inorg. Chem., 49(10), 4391-4393 (2010).
Tomoya Iwazaki, Hongsheng Yang, Ryoujin Obinata, Wataru Sugimoto and Yoshio Takasu,* "Oxygen-reduction activity of silk-derived carbons ", J. Power Sources, 195(18), 5840-5847 (2010).
Open AccessTomoyuki Kawaguchi, Wataru Sugimoto,* Yoshio Takasu, "Effect of Temperature and Adsorption Potential on the Electro-oxidation of Adsorbed Carbon Monoxide on Carbon Supported PtRu", Electrochemistry, 78(1), 36-41 (2010). [awarded Best Paper of 2010]
Takahiro Saida, Wataru Sugimoto,* Yoshio Takasu, "Enhanced Activity and Stability of Pt/C Fuel Cell Anodes by the Modification with Ruthenium-Oxide Nanosheets", Electrochim. Acta, 55(3), 857-864 (2010).

2009

Katsutoshi Fukuda, Hisato Kato, Jun Sato, Wataru Sugimoto,* Yoshio Takasu, "Swelling, intercalation, and exfoliation behavior of layered ruthenate derived from layered potassium ruthenate", J. Solid State Chem., 182(11), 2997-3002 (2009).
Yoshio Takasu *, Kyosuke Oohori, Norihiro Yoshinaga, Wataru Sugimoto, "An examination of the oxygen reduction reaction on RuO2-based oxide coatings formed on titanium substrates", Catal. Today, 146(1-2), 248-252 (2009).
Azusa Takai, Takahiro Saida, Wataru Sugimoto, Liang Wang, Yusuke Yamauchi,* Kazuyuki Kuroda,* "Preparation of Mesoporous Pt-Ru Alloy Fibers with Tunable Compositions via Evaporation-Mediated Direct Templating (EDIT) Method Utilizing Porous Anodic Alumina Membranes"Chem. Mater., 21(14), 3414-3423 (2009)
Tatsuya Ohashi, Wataru Sugimoto, Yoshio Takasu*, "Catalytic roughening of surface layers of BDD for various applications", Electrochimica Acta, 54(22), 5223-5229 (2009).
Dongsheng Geng, Daisuke Matsuki, Jiajia Wang, Tomoyuki Kawaguchi, Wataru Sugimoto,* Yoshio Takasu, "Activity and Durability of Ternary PtRuIr/C for Methanol Electro-oxidation", J. Electrochem. Soc., 156(3), B397-B402 (2009).
- Selected for the January 26, 2009 issue of Virtual Journal of Nanoscale Science & Technology.
Tomoya Iwazaki, Ryoujin Obinata, Wataru Sugimoto, Yoshio Takasu*, "High oxygen-reduction activity of silk-derived activated carbon", Electrochem. Commun., 11(2), 376-378 (2009).
Katsutoshi Fukuda, Hisato Kato, Wataru Sugimoto,* Yoshio Takasu, "Swelling of Layered Potassium Ruthenate into Nanosheet Crystallites" in Solid-State Chemistry of Inorganic Materials VII, edited by P.M. Woodward, J.F. Mitchell, S.L. Brock, J.S.O. Evans (Mater. Res. Soc. Symp. Proc. Volume 1148E, Warrendale, PA, 2009), PP3-36.
Katsutoshi Fukuda, Hisato Kato, Wataru Sugimoto,* Yoshio Takasu, "Layer-by-layer Self-assembly of Unilamellar Nanosheet Crystallites of Ruthenium Oxides" in Transparent Conductors and Semiconductors for Optoelectronics, edited by J.D. Perkins, T.O. Mason, J.F. Wager, Y. Shigesato (Mater. Res. Soc. Symp. Proc. Volume 1109E, Warrendale, PA, 2009), B03-21.

2008

Norihiro Yoshinaga, Wataru Sugimoto, Yoshio Takasu,* "Oxygen Reduction Behavior of Rutile-Type Iridium Oxide in Sulfuric Acid Solution", Electrochim. Acta, 54(2), 566-573 (2008).
Tomoya Iwazaki, Toshiro Semba, Shunsuke Konishi, Takahiro Sezai, Yasushi Murakami, Wataru Sugimoto, and Yoshio Takasu,* "Catalytic Excavation and Graphitization of Activated Carbon by Cobalt Nanoparticles", Chem. Lett., 37(12), 1194-1195 (2008).
Yoshio Takasu,* Norihiro Yoshinaga, Wataru Sugimoto, "Oxygen Reduction behavior of RuO₂/Ti, IrO₂/Ti and IrM (M: Ru, Mo, W, V)O_x/Ti Binary Oxide Electrodes in a Sulfuric Acid Solution", Electrochem. Commun., 10(4) 668-672 (2008).

2007

Open AccessWataru Sugimoto,* Toshiaki Ohta, Katsunori Yokoshima, Yoshio Takasu, "Evaluation of the Redox Behavior of Hydrous Ruthenium Oxides: Effect of Temperature and Acid Concentration on the electrochemical Behavior of Layered Ruthenium Oxide", Electrochemistry, 75(8), 645-648 (2007).
Open AccessYoshio Takasu,* Wataru Sugimoto, Masaru Yoshitake, "Development of Materials and Evaluation Methods for PEFCs", Electrochemistry, 75(2), 105-114 (2007).

2006

Shunsuke Konishi, Tatsuya Ohashi, Wataru Sugimoto, and Yoshio Takasu*, "Effect of the Crystal Plane on the Catalytic Etching Behavior of Diamond Crystallites by Cobalt Nanoparticles", Chem. Lett., 35(11), 1216-1217 (2006).
Tomoyuki Kawaguchi, Yasuhiro Rachi, Wataru Sugimoto, Yasushi Murakami, Yoshio Takasu, "Performance of Ternary PtRuRh/C Electrocatalyst with Varying Pt:Ru:Rh Ratio for Methanol Electro-oxidation", J. Appl. Electrochem. 36(10), 1117-1125 (2006).
S. Konishi, W. Sugimoto, Y. Murakami, Y. Takasu, "Catalytic Creation of Channels in the Surface Layers of Highly Oriented Pyrolytic Graphite by Cobalt Nanoparticles", Carbon, 44(11), 2338-2340 (2006).
Wataru Sugimoto, Katsunori Yokoshima, Yasushi Murakami, Yoshio Takasu, "Charge Storage Mechanism of Nanostructured Anhydrous and Hydrous Ruthenium-Based Oxides", Electrochim. Acta, 52(4), 1742-1748, (2006).
Katsunori Yokoshima, Takuyoshi Shibutani, Masashi Hirota, Wataru Sugimoto, Yasushi Murakami and Yoshio Takasu, "Electrochemical supercapacitor behavior of nanoparticulate rutile-type Ru_1-xV_xO₂", J. Power Sources, 160(2), 1480-1486 (2006).
Yoshio Takasu, Shunsuke Konishi, Wataru Sugimoto, Yasushi Murakami, "Catalytic Formation of Nanochannels in the Surface Layers of Diamonds by Metal Nanoparticles", Electrochem. Solid-State Lett., 9(7), C114 (2006).
Wataru Sugimoto, Takahiro Saida and Yoshio Takasu, "Co-catalytic Effect of Nanostructured Ruthenium Oxide towards Electro-Oxidation of Methanol and Carbon Monoxide", Electrochem. Commun., 8(3), 411-415 (2006).
W. Sugimoto, K. Yokoshima, K. Ohuchi, Y. Murakami, Y. Takasu, "Fabrication of Thin Film, Flexible and Transparent Electrodes Composed of Ruthenic Acid Nanosheets by Electrophoretic Deposition and Application to Electrochemical Capacitors", J. Electrochem. Soc., 153(2), A255-A260 (2006).
- Selected for the January 16, 2006 issue of Virtual Journal of Nanoscale Science & Technology.
Yosuke Takeda, Hiromi Suzuki, Kazuya Notsu, Wataru Sugimoto, Yoshiyuki Sugahara*, "Preparation of a novel organic derivative of the layered perovskite bearing HLaNb₂O7・nH₂O interlayer surface trifluoroacetate groups", Mater. Res. Bull., 41, 834-841 (2006).

2005

K. Yokoshima, W. Sugimoto, Y. Murakami, Y. Takasu, "Investigation on the Redox Behavior of Rutile-Type Ti_1-xV_xO₂", Electrochemistry., 73(12), 1026-1029 (2005).
Y. Takasu, R. Matsuyama, S. Konishi, W. Sugimoto, Y. Murakami, "Dependence of the Preparation Temperature of Pt0.7Co0.3/C Catalysts on the Structure of the Alloy Particles and the Carbon Supports", Electrochem. Solid-State Lett., 8(9), B34-B37 (2005).
Y. Takasu, S. Konishi, R. Miyoshi, K. Nukii, T. Matsuse, W. Sugimoto, Y. Murakami, "Catalytic Linear Grooving of Graphite Surface Layers by Pt, Ru, and PtRu Nanoparticles", Chem. Lett., 34(7), 1008-1009 (2005).
T. Matsumoto, N. Iyi, Y. Kaneko, K. Kitamura, S. Masaki, T. Imai, W. Sugimoto, Y. Takasu, Y. Murakami, "Preparation of a Transparent and Flexible Self-standing Film of Layered Titania/Isostearate Nanocomposite", J. Mater. Res., 20(5), 1308-1315 (2005).
W. Sugimoto, H. Iwata, K. Yokoshima, Y. Murakami, Y. Takasu, "Proton and Electron Conductivity in Hydrous Ruthenium Oxides Evaluated by Electrochemical Impedance Spectroscopy: The Origin of Large Capacitance", J. Phys. Chem. B, 109(15), 7330-7338 (2005).
W. Sugimoto, K. Ohuchi, Y. Murakami, Y. Takasu, "Incorporation of Ethylenediamine as a Bi-Layer in the Interlayer Space of Tetratitanic Acid by Re-stacking Exfoliated Nanosheets", Bull. Chem. Soc. Jpn., 78(4), 633-637 (2005).
W. Sugimoto, K. Aoyama, T. Kawaguchi, Y. Murakami, Y. Takasu, "Kinetics of CH₃OH Oxidation on PtRu/C Studied by Impedance and CO Stripping Voltammetry", J. Electroanal. Chem., 576(1), 215-221 (2005).
T. Kawaguchi, W. Sugimoto, Y. Murakami and Y. Takasu, "Particle Growth Behavior of Carbon-Supported Pt, Ru, PtRu Catalysts Prepared by an Impregnation Reductive-Pyrolysis Method for Direct Methanol Fuel Cell Anodes", J. Catal., 229(1), 176-184 (2005).

2004

W. Sugimoto, M. Omoto, K. Yokoshima, Y. Murakami, Y. Takasu, "Electrical and Magnetic Properties of Ion-Exchangeable Layered Ruthenates", J. Solid State Chem., 177(12), 4542-4545 (2004).
W. Sugimoto, H. Iwata, Y. Murakami, Y. Takasu, "Electrochemical Capacitor Behavior of Layered Ruthenic Acid Hydrate", J. Electrochem. Soc., 151(8), A1181-A1187 (2004).
T. Kawaguchi, W. Sugimoto, Y. Murakami, Y. Takasu, "Temperature Dependence of the Oxidation of Carbon Monoxide on the Carbon Supported Pt, Ru, and PtRu", Electrochem. Commun., 6,480-483 (2004).
Y. Murakami, K. Tanaka, Y. Takechi, S. Takahashi, Y. Nakano, T. Matsumoto, W. Sugimoto, Y. Takasu, "Microporous Silica Particles Prepared by the Salt-Catalytic Sol-Gel Process with Extremely Low Content of Water", J. Sol-Gel Sci. Tech., 29(1), 19-24 (2004).
W. Sugimoto, T. Kizaki, K. Yokoshima, Y. Murakami, Y. Takasu, "Evaluation of the pseudocapacitance in RuO2 with a RuO2/GC thin film electrode", Electrochim. Acta, 49(2) 313-320 (2004).

2003

Y. Takasu, T. Kawaguchi, W. Sugimoto, and Y. Murakami, "Effects of the Surface Area of Carbon Support on the Characterization of Highly-Dispersed Pt-Ru Particles as Catalysts for Methanol Oxidation", Electrochim. Acta, 48(25-26), 3861-3868 (2003).
W. Sugimoto, H. Iwata, Y. Yasunaga, Y. Murakami, and Y. Takasu, "Preparation of Ruthenic Acid Nanosheets and Utilization of Its Interlayer Surface for Electrochemical Energy Storage", Angew. Chem. Int. Ed., 42(34), 4092 - 4096 (2003).
Y. Takasu, W. Sugimoto, and Y. Murakami, "Electrocatalytic Oxidation of Methanol and Related Chemical Species on Ultrafine Pt and PtRu Particles Supported on Carbon", Catalysis Surveys from Asia, 7(1), 21-29 (2003).
Y. Takasu, H. Itaya, T. Kawaguchi, W. Sugimoto, and Y. Murakami, "Characteristics of Highly Active PtRu/C Anode Catalysts for DMFC", Studies in Surface Science and Catalysis, 145, 279 - 282 (2003).
M. Kudo, H. Ohkawa, W. Sugimoto, N. Kumada, Z. Liu, O. Terasaki, K. Kuroda, Y. Sugahara, "A Layered Tungstic Acid H₂W₂O₇・nH₂O with a Double-Octahedral Sheet Structure: Conversion Process from an Aurivillius Phase Bi₂W₂O₉ and Structural Characterization"Inorg. Chem., 42(14), 4479-4484 (2003).

2002

W. Sugimoto, T. Kawaguchi, Y. Murakami, and Y. Takasu, "The Effect of the Nano and Microstructure of PtRu/C Electrocatalysts Towards Methanol and Carbon Monoxide Oxidation", Mat. Res. Soc. Symp. Proc., "Solid-State Ionics--2002", 756, FF6.4.1-FF6.4.6 (2002).
W. Sugimoto, O. Terabayashi, Y. Murakami, Y. Takasu, "Electrophoretic deposition of negatively charged tetratitanate nanosheets and transformation into preferentially oriented TiO₂(B) Film", J. Mater. Chem., 12, 3814-3818 (2002).
W. Sugimoto, T. Shibutani, Y. Murakami, and Y. Takasu, "Charge Storage Capabilities of Rutile-Type RuO₂-VO₂ Solid Solution for Electrochemical Supercapacitors", Electrochem. Solid-State Lett., 5(7), A170-A172 (2002).
K. Tanaka, T. Imai, Y. Murakami, T. Matsumoto, W. Sugimoto, Y. Takasu, "Microporous Structure of Alumina Prepared by a Salt Catalytic Sol-Gel Process", Chem. Lett., 2002 (1), 110-111 (2002).
Y. Takasu, M. Shimizu, T. Shibutani, T. Ohnuma, W. Sugimoto, Y. Murakami; "Development of Oxide Electrodes for Electrochemical Supercapacitors", Proc. Electrochem. Soc. "Electrochemical Capacitor and Hybrid Power Sources" (Ed. R. J. Brodd, D. H. Doughty, J. H. Kim, M. Morita, K. Naoi, G. Nagasubramanian, C. Nanjundiah), 2002-7, 107-115 (2002).
W. Sugimoto, T. Shibutani, Y. Murakami, and Y. Takasu, "Electrochemical Supercapacitor Properties of RuO2-based Crystalline Material", Micropower and Microdevices: ECS Proc., PV 2002-25, 87 - 94 (2002).

2001

K. Tanaka, Y. Murakami, T. Imai, T. Matsumoto, S. Furuno, W, Sugimoto, and Y. Takasu, "Microporous Structure of Titanium Oxide Prepared by a Salt Catalytic Sol-Gel Process", Chem. Lett., 2001 (12), 1280-1281 (2001).
Y. Tsunoda, M. Shirata, W. Sugimoto, Z. Liu, O. Terasaki, Y. Sugahara, and K. Kuroda, "Preparation of a Protonated Form of a Layered Perovskite Tantalate from an Aurivillus Phase Bi2SrTa2O9 via Acid Treatment and its HREM Characterization", Inorg. Chem., 40(23), 5768-5771 (2001).
Y. Takasu, T. Ohnuma, S. Mizutani, W. Sugimoto, and Y. Murakami: Effects of the addition of Calcium on the Pseudocapacitance of Ruthenium Oxide Electrodes; Electrochemistry, 69, 493-494 (2001).
W. Sugimoto, T. Ohnuma, Y. Murakami, Y. Takasu, "Molybdenum Oxide/Carbon Composite Electrodes as Electrochemical Supercapacitors", Electrochem. Solid-State Lett., 4, A145-A147 (2001).
Y. Takasu, H. Itaya, T. Iwazaki, R. Miyoshi, T. Ohnuma, W. Sugimoto and Y. Murakami: Size Effects of Ultrafine Pt-Ru Particles on the Electrocatalytic Oxidation of Methanol; Chem. Commun., 2001, 341-342 (2001).
T. Ohnuma, W. Sugimoto, Y. Murakami, and Y. Takasu, "Molybdenum Oxide/Activated Carbon Composite Electrodes as Electrochemical Supercapacitors", Advanced Batteries and Super Capacitors, ECS PV 2001-21, 641 - 647 (2001).

2000

Y. Takasu, T. Fujiwara, Y. Murakami, K. Sasaki, M. Oguri, T. Asaki and W. Sugimoto: Effect of the Structure of Carbon-Supported PtRu Electrocatalysts on the Electrochemical Oxidation of Methanol; J. Electrochem. Soc., 147, 4421-4427 (2000).
Y. Takasu, T. Iwazaki, W. Sugimoto, Y. Murakami: Size Effects of Platinum Particls on the Electro-oxidation of Methanol in an Aqueous Solution of HClO4; Electrochem. Commun., 2,　671-674 (2000).
M. Shirata, Y. Tsunoda, W. Sugimoto, and Y. Sugahara, "Conversion of an Aurivillius Phase B_i2SrNaNb₃O₁₂ into its Protonated Form via Treatment with Various Mineral Acids", Mat. Res. Soc. Symp. Proc., "Solid-State Chemistry of Inorganic Materials", 658, GG6.24.1 - GG6.24.6 (2000).

1999

Y. Takasu, T. Ohnuma, W. Sugimoto, and Y. Murakami: Pseudocapacitance of Molybdenum Oxide Particles Highly Dispersed on Glassy Carbon Surface; Electrochemistry, 67, 1187-1188 (1999).

For complete list of papers before 1999, click here.

For complete list of papers from lab from 1993-2009, click here.