Hydrogen generation from decomposition of hydrous hydrazine over Ni-Ir/CeO2 catalyst

作     者：Hongbin Dai Yujie Zhong Ping Wang 

作者机构：School of Materials Science and Engineering Key Laboratory of Advanced Energy Storage Materials of Guangdong Province South China University of Technology School of Materials Science and Engineering Xi’an Shiyou University 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2017年第27卷第1期

页      面：121-125页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：The financial supports for this research from the National Natural Science Foundation of China (Grant Nos. 51471168 and 51671087),the Foundation for Innovative Research Groups of the National Natural Science Foundation of China (Grant No. 51621001) the Natural Science Foundation of Guangdong Province of China (Grant No. 2016A030312011) 985 Project of South China University of Technology are gratefully acknowledged 

主　　题：Chemical hydrogen storage Catalysis Hydrous hydrazine Hydrogen generation 

摘      要：The synthesis of highly active and selective catalysts is the central issue in the development of hydrous hydrazine（N2H4·H2O） as a viable hydrogen carrier. Herein, we report the synthesis of bimetallic Ni-Ir nanocatalyts supported on CeO2using a one-pot coprecipitation method. A combination of XRD, HRTEM and XPS analyses indicate that the Ni-Ir/CeO2catalyst is composed of tiny Ni-Ir alloy nanoparticles with an average size of around 4 nm and crystalline CeO2matrix. The Ni-Ir/CeO2catalyst exhibits high catalytic activity and excellent selectivity towards hydrogen generation from N2H4·H2O at mild temperatures. Furthermore, in contrast to previously reported Ni-Pt catalysts, the Ni-Ir/CeO2catalyst shows an alleviated requirement on alkali promoter to achieve its optimal catalytic performance.