25サイズW3.6cm×H4.35cm配置位置横11cm、縦22.2cmサイズW7.5cm×H4.35cm配置位置横11cm、縦2.5cmNanoporous gold as a heterogeneous catalyst formolecular transformationsサイズW3.6cm×H4.35cm配置位置横14.9cm、縦22.2cmA high-resolution transmission electron micrograph of cerium-oxide nanorods.ProfessorASAO NaokiProfessorARAKI JunOutlook for researchOutlook for students after graduationMany graduates go on to graduate school andget positions in a broad range of research areasin chemical companies.Outlook for researchandcellulose/chitinPolyrotaxanenano-whiskers are both materials with diversefuture potential. These carbohydrate-based,eco-friendly, and biodegradable componentswill find wide application in society.Outlook for students after graduationGraduates are employed primarily by chemical and material manufacturers.Department ofChemistry and MaterialsDepartment ofChemistry and MaterialsProfessor Asao joined the Faculty ofTextile Science and Technology atShinshu University in 2016 afterworking at Tohoku University. Hisprincipalresearch ismaterials science, based on organicchemistry, catalytic science, andmetallurgy.science,onorganic chemistry, catalytic science,and metallurgy.Professor Araki took his currentposition in 2021 after working as aJST-CREST postdoc researcher, ato Advancedtechnical advisoranSoftmaterialsandtheassistant professor underShinshuYoungResearchersEmpower-mentProject. His areas of specializationinclude supra-molecular chemistryand polysacchadide chemistry.area ofbasedInc.,UniversityRecently, we have developed a new method tofabricate ultrafine metal oxide nanomaterialsthat is based on a dealloying method. Thenanomaterials exhibitremarkable chemicalproperties that can be used in a variety ofresearch fields.A transmission electronmicrograph of ti tanatenanowiresA certain polyrotaxane derivative, that is, a nano-sized necklacemolecule with a width of 1 nanometer, can be used to form a flexiblefilm that has been utilized to paint cell phones.cell phones.Cellulose nano-whiskers from plants (left). These nano-sized fibers havean elastic modulus higher than that of steel. They can form a liquid crystalthat shows vivid birefringence between crossed polarizers (right).In our laboratory, we are studying materials science thatcontributes to energy and environmental matters. One ofissues in nanotechnology research is thethe centralfabrication of metal oxide nanomaterials whose shape andsize is controlled. This is important as the chemical andphysical properties ofthe nanomaterials are highlydependent on their structures. Furthermore, we arepreparing many types of nanoporous metals to be used asefficient heterogeneous catalysts for various kinds ofmaterial transformations.I am pursuing two principal areas of research. The firstinvolves utilization of necklace-shaped supramoleculescalled polyrotaxanesto develop functionalin ordermaterials such as gels, fibers, and films through chemicalmodification. The second involves applications of nano-whiskers, that is, rod-like microcrystal particles of celluloseobtained primarily from trees and plants and those ofchitin from crab and shrimp shells for use as reinforcednanocomposites.Metal and metal oxide nanomaterialsfor our daily lifeNecklace-shaped supramolecules andcellulose/chitin nano-whiskers
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