Promoting hydrolysis of ammonia borane over multiwalled carbon nanotube-supported Ru catalysts via hydrogen spillover

被引：43
|
作者：
Wu, Zhijie [1 ,4 ]
Duan, Yongli [1 ]
Ge, Shaohui [2 ]
Yip, Alex C. K. [3 ]
Yang, Fan [1 ]
Li, Yongfeng [1 ]
Dou, Tao [1 ]
机构：
[1] China Univ Petr, State Key Lab Heavy Oil Proc, Key Lab Catalysis CNPC, Beijing 102249, Peoples R China
[2] PetroChina Co Ltd, Petrochem Res Inst, Beijing 100195, Peoples R China
[3] Univ Canterbury, Dept Chem & Proc Engn, Christchurch, New Zealand
[4] Nankai Univ, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2017年 / 91卷
关键词：
Ammonia borane; Hydrolysis; Hydrogen spillover; Ru catalyst; Carbon nanotube; CORE-SHELL NANOPARTICLES; MONODISPERSE RUTHENIUM NANOPARTICLES; HIGHLY EFFICIENT CATALYSTS; SITU FACILE SYNTHESIS; NI NANOPARTICLES; STABILIZED RUTHENIUM(0); METHYLAMINE BORANE; ACTIVE CATALYSTS; DEHYDROGENATION; GENERATION;
D O I：
10.1016/j.catcom.2016.12.007
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：
Multi-walled carbon nanotubes were used to deposit Ru metal by electrostatic adsorption and incipient wetness impregnation methods, respectively. The electrostatic adsorption method led to small (1.8-2.5 nm) and highly dispersed (0.51-0.72 dispersion) Ru metal nanopartides. The initial hydrogen generation turnover rates over Ru catalysts with different metal particle sizes showed that ammonia borane hydrolysis reaction is structure-sensitive; large Ru particles displayed high turnover rates. Multiwalled carbon nanotube-supported Ru nanoparticles exhibit high turnover rate and low activation energy for the hydrolysis of ammonia borane because of hydrogen spillover effect associated with strong interaction between Ru metal and carbon nanotubes. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：10 / 15
页数：6
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