Construction of NiCo-Pt nanopolyhedron inlay-structures and their highly efficient catalysis hydrolytic dehydrogenation toward ammonia borane

被引：36

作者：

Wen, Ming ^{[1
,2
]}

Zhou, Shiqing ^{[2
]}

Wu, Qingsheng ^{[1
,2
]}

Zhang, Juyang ^{[2
]}

Wu, Qingnan ^{[2
]}

Wang, Chenxiang ^{[2
]}

Sun, Yuzhen ^{[2
]}

机构：

[1] Tongji Univ, Dept Chem, Shanghai 200092, Peoples R China

[2] Tongji Univ, Minist Educ, Key Lab Yangtze River Water Environm, Shanghai 200092, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2013年 / 232卷

基金：

中国国家自然科学基金;

关键词：

NiCo-Pt nanopolyhedrons; Inlay-structures; Catalysis; Dehydrogenation; Ammonia borane; HYDROGEN GENERATION; SODIUM-BOROHYDRIDE; NANORODS;

D O I：

10.1016/j.jpowsour.2012.12.070

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

New NiCo-Pt nanopolyhedron inlay-structures with an average diameter of similar to 450 nm have been synthesized through replacement deposition Co or Ni by reductive replacement with a Pt submonolayer (galvanic replacement) on NiCo hexagonal nanoplates and nanoicosahedrons. The resultant products are investigated as hydrolytic dehydrogenation catalyst for potential hydrogen energy applications. The NiCo-Pt nanopolyhedrons exhibit higher catalytic activity than NiCo nanopolyhedrons for the hydrolysis of borane in aqueous ammonia borane at ambient atmosphere and room temperature. In particular, the NiCo Pt hexagonal nanoplates exhibit efficient catalytic activity with a lower activation energy of 45.72 kJ mol(-1) than that (49.4 kJ mol(-1)) for NiCo. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：86 / 92

页数：7

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