In Situ Facile Synthesis of Ru-Based Core-Shell Nanoparticles Supported on Carbon Black and Their High Catalytic Activity in the Dehydrogenation of Amine-Boranes

被引：42
作者：
Cao, Nan [1 ]
Su, Jun [2 ]
Hong, Xinlin [1 ]
Luo, Wei [1 ]
Cheng, Gongzhen [1 ]
机构：
[1] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Hubei, Peoples R China
[2] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China
来源：
CHEMISTRY-AN ASIAN JOURNAL | 2014年 / 9卷 / 02期
基金：
中国国家自然科学基金;
关键词：
amine-boranes; hydrogen storage; nanoparticles; ruthenium; CHEMICAL HYDROGEN STORAGE; AMMONIA-BORANE; HYDROLYTIC DEHYDROGENATION; METHYLAMINE-BORANE; STABILIZED RUTHENIUM(0); NANOCLUSTERS CATALYST; EFFICIENT CATALYSTS; GENERATION; PERFORMANCE; TEMPERATURE;
D O I：
10.1002/asia.201301171
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Well-dispersed core-shell Ru@M (M=Co, Ni, Fe) nanoparticles (NPs) supported on carbon black have been synthesized via a facile in situ one-step procedure under ambient condition. Core-shell Ru@Co NPs were synthesized and characterized for the first time. The as-synthesized Ru@Co and Ru@Ni NPs exhibit superior catalytic activity in the hydrolysis of ammonia borane compared with their monometallic and alloy counterparts. The Ru@Co/C NPs are the most reactive, with a turnover frequency (TOF) value of 320(molH2min(-1))mol(Ru)(-1) and activation energy (E-a) of 21.16kJmol(-1). Ru@Ni/C NPs are the next most active, whereas Ru@Fe/C NPs are almost inactive. Additionally, the as-synthesized NPs supported on carbon black exhibit higher catalytic activity than catalysts on other conventional supports, such as SiO2 and -Al2O3.
引用
收藏
页码：562 / 571
页数：10
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