Kinetic study of NaBH4 hydrolysis over carbon-supported ruthenium

被引：51
作者：
Shang, Y. [1 ]
Chen, R. [1 ]
Jiang, G. [2 ]
机构：
[1] Univ Loughborough, Dept Aeronaut & Automot Engn, Loughborough LE11 3TU, Leics, England
[2] Aston Univ, Dept Chem Engn & Appl Chem, Birmingham B4 7ET, W Midlands, England
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2008年 / 33卷 / 22期
关键词：
Sodium borohydride; Kinetics; Hydrolysis; Ruthenium;
D O I：
10.1016/j.ijhydene.2008.07.069
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：
The effects of temperature and the concentrations of NaBH4, NaBO2 and NaOH on the rate of NaBH4 hydrolysis over carbon-supported ruthenium catalyst were investigated using isothermal rate data extracted from non-isothermal reactions. It was shown that the hydrolysis was a zero-order reaction with respect to the concentration of NaBH4 and the reaction rate decreased with the increase in OH- concentration. A rate expression was then derived to correlate the hydrolysis rate with the temperature and NaOH concentration. (C) 2008 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：6719 / 6726
页数：8
相关论文
共 28 条
[1]   A safe, portable, hydrogen gas generator using aqueous borohydride solution and Ru catalyst [J].
Amendola, SC ;
Sharp-Goldman, SL ;
Janjua, MS ;
Spencer, NC ;
Kelly, MT ;
Petillo, PJ ;
Binder, M .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2000, 25 (10) :969-975
[2]   Review on hydrogen absorbing materials - structure, microstructure, and thermodynamic properties [J].
Bououdina, M ;
Grant, D ;
Walker, G .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2006, 31 (02) :177-182
[3]  
Dong H, 2003, INT J HYDROGEN ENERG, V28, P1095, DOI 10.1016/S0360-3199(02)00235-5
[4]  
Fogler H S, 2006, ELEMENTS CHEM REACTI, P645
[5]   Thermal decomposition of the non-interstitial hydrides for the storage and production of hydrogen [J].
Grochala, W ;
Edwards, PP .
CHEMICAL REVIEWS, 2004, 104 (03) :1283-1315
[6]   New insights on the mechanism of palladium-catalyzed hydrolysis of sodium borohydride from 11B NMR measurements [J].
Guella, G. ;
Zanchetta, C. ;
Patton, B. ;
Miotello, A. .
JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (34) :17024-17033
[7]   Hydrogen storage: High-pressure gas containment [J].
Irani, RS .
MRS BULLETIN, 2002, 27 (09) :680-682
[8]  
KAUFMAN CM, 1981, CATALYTIC GENERATION
[9]   Production of hydrogen from sodium borohydride in alkaline solution: development of catalyst with high performance [J].
Kim, JH ;
Lee, H ;
Han, SC ;
Kim, HS ;
Song, MS ;
Lee, JY .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2004, 29 (03) :263-267
[10]   Hydrogen generation system using sodium borohydride for operation of a 400 W-scale polymer electrolyte fuel cell stack [J].
Kim, Sun Ja ;
Lee, Jaeyoung ;
Kong, Kyung Yong ;
Jung, Chang Ryul ;
Min, In-Gyu ;
Lee, Sang-Yeop ;
Kim, Hyoung-Juhn ;
Nam, Suk Woo ;
Lim, Tae-Hoon .
JOURNAL OF POWER SOURCES, 2007, 170 (02) :412-418
123