文献类型：期刊文献

英文题名：Kinetics of NaBH₄ hydrolysis on carbon-supported ruthenium catalysts

作者：Zou, Y. C.[1];Nie, M.[1];Huang, Y. M.[1];Wang, J. Q.[2];Liu, H. L.[1]

机构：[1]E China Univ Sci & Technol, Dept Chem, Minist Educ, Key Lab Specially Funct Polymer Mat & Related Tec, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China

年份：2011

卷号：36

期号：19

起止页码：12343

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000295657300032)】；

基金：Financial support for this work was provided by the National Natural Science Foundation of China (No.20736002, 21001112), Program for Changjiang Scholars and Innovative Research Team in University of China (Grant IRT0721), the Fundamental Research Funds for the Central Universities (WK1013001), Shanghai Leading Academic Discipline Project (B502), and the Science and Technology Commission of Shanghai Municipality of China (No. 09JC1417100). We thank Dr. Baojiang Jiang for HRTEM measurement.

语种：英文

外文关键词：Kinetics; Sodium borohydride; Hydrolysis reaction; Ru/C catalyst

摘要：In this work, different shapes (powder and spherical) of ruthenium-active carbon catalysts (Ru/C) were prepared by impregnation reduction method for hydrogen generation (HG) from the hydrolysis reaction of the alkaline NaBH4 solution. The effects of temperature, amount of catalysts, and concentration of NaOH and NaBH4 on the hydrolysis of NaBH4 solution were investigated with different shapes of Ru/C catalysts. The results show that the HG kinetics of NaBH4 solution with the powder Ru/C catalysts is completely different from that with the spherical Ru/C catalysts. The main reason is that both mass and heat transfer play important roles during the reaction with Ru/C catalysts. The HG overall kinetic rate equations for NaBH4 hydrolysis using the powder Ru/C catalysts and the spherical catalysts are described as r = A exp (-50740/RT) [catalyst](1.05) [NaOH](-0.13) [NaBH4](-0.25) and r = A exp (-52,120/RT) [catalyst](1.00) [NaOH](-0.21) [NaBH4](0.27) respectively. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.