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2016 Fiscal Year Final Research Report

Mesoporous materials to occlude size- and shape-controlled catalytic nanoparticles

Research Project

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Project/Area Number 15K14223
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Catalyst/Resource chemical process
Research InstitutionOsaka City University

Principal Investigator

YAMADA Yusuke  大阪市立大学, 大学院工学研究科, 教授 (30358270)

Project Period (FY) 2015-04-01 – 2017-03-31
Keywordsメソ多孔体 / シリカナノ粒子 / アンモニアボラン / 光触媒 / 水素発生
Outline of Final Research Achievements

Composite catalysts were prepared by covering catalytically active particles with silica nanoparticles to avoid agglomeration during catalytic reaction. Partial coverage of the surfaces of a catalytically active particle allows substrates to access the surfaces for a catalytic reaction. In this context, Cu2O microparticles, which is known to form agglomerate easily, were covered with SiO2 nanoparticles and then examined for hydrogen evolution by hydrolysis of ammonia borane. As expected, Cu2O microparticles without SiO2 nanoparticles easily formed agglomerates during the catalytic reaction. On the other hand, the Cu2O microparticles covered with SiO2 nanoparticles exhibited high durability because of suppression of the agglomeration. Turnover number of the Cu2O/SiO2 system reached three times higher than that of the Cu2O system.

Free Research Field

触媒化学

URL: 

Published: 2018-03-22  

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