标题
作者
作者:Dai, H (Dai, Hao)[1 ]; Qiu, YP (Qiu, Yu-Ping)[1 ]; Dai, HB (Dai, Hong-Bin)[1 ]; Wang, P (Wang, Ping)[1 ]
期刊信息
卷:
期:
页:
DOI:
出版年:
文献类型:Article
摘要
Catalytic decomposition of hydrous hydrazine (N2H4.H2O) has received considerable attention as a promising chemical hydrogen storage system. But the currently available N2H4.H2O decomposition catalysts always showed poor durability. In the present paper, we report an experimental study of the performance degradation of Ni-Pt/CeO2 catalyst using TPD-MS, FTIR, HRTEM techniques. Our study on the post-used Ni-Pt/CeO2 catalyst found that a predominant N-2 species and various reaction intermediates over-strongly bound on the catalyst surface. Furthermore, the amount of the bound N-2 species at Ni sites is approximately linearly correlated with the activity decay degree. These results provide a straightforward explanation of the performance degradation phenomenon and highlight the critical role of adsorbate/catalyst interaction in determination of the catalytic performance. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
关键词
作者关键词:Hydrogen storage; Catalyst; Performance degradation; Binding of intermediate
作者信息
通讯作者地址:Wang, P (通讯作者)
![]() | South China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China. |
地址:
![]() | [ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China |
电子邮件地址:mspwang@scut.edu.cn
出版商
类别分类
研究方向:Chemistry; Electrochemistry; Energy & Fuels
Web of Science 类别:Chemistry, Physical; Electrochemistry; Energy & Fuels