文献类型：期刊文献

英文题名：Carbon Nanotubes as Support in the Platinum-Catalyzed Hydrolytic Dehydrogenation of Ammonia Borane

作者：Chen, Wenyao[1];Duan, Xuezhi[1,2];Qian, Gang[1];Chen, De[2];Zhou, Xinggui[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Norwegian Univ Sci & Technol, Dept Chem Engn, N-7491 Trondheim, Norway

年份：2015

卷号：8

期号：17

起止页码：2927

外文期刊名：CHEMSUSCHEM

收录：;EI(收录号：20152400934124);WOS:【SCI-EXPANDED(收录号:WOS:000360915800016)】；

基金：This work was financially supported by the National Basic Research Program of China (2012CB720500), the Natural Science Foundation of China (21306046 and 21406063), the Fundamental Research Funds for the Central Universities (WA1514013 and WA1514011), and the 111 Project of Ministry of Education of China (B08021).

语种：英文

外文关键词：boranes; carbon nanotubes; hydrogen; platinum; supported catalysts

摘要：We report remarkable support effects for carbon nanotubes (CNTs) in the Pt/CNT-catalyzed hydrolytic dehydrogenation of ammonia borane. The origin of the support-dependent activity and durability is elucidated by combining the catalytic and durability testing with characterization by a range of spectroscopy and high-angle annular dark-field scanning transmission electron microscopy techniques and ICP analysis. The effects mainly arise from different electronic properties and different abilities for the adsorption of boron-containing species on platinum surfaces and changes in size and shape of the platinum particles during the reaction. Defect-rich CNTs in particular are a promising support material, as it not only enhances the platinum binding energy, leading to the highest hydrogen generation rate, but also inhibits the adsorption of boron-containing species and stabilizes the platinum nanoparticles to resist the agglomeration during the reaction, leading to the highest durability. The insights revealed herein may pave the way for the rational design of highly active and durable metal/carbon catalysts for the hydrolytic dehydrogenation of ammonia borane.