改性石墨烯负载Ni-Co催化剂催化氨硼烷水解产氢性能  

Catalytic Performance of Ni-Co Catalyst Supported by Modified Graphene for Generation of Hydrogen from Ammonia Borane

作　　者：卢敏[1] 郑英丽[1] 刘红宇[1] 张正才 胡泽坤 张允航 周草彬 LU Min;ZHENG Yingli;LIU Hongyu;ZHANG Zhengcai;HU Zekun;ZHANG Yunhang;ZHOU Caobin(Chemical Engineering&Pharmaceutics School,Henan University of Science&Technology,Luoyang 471023,China)

机构地区：[1]河南科技大学化工与制药学院,河南洛阳471023

出　　处：《河南科技大学学报（自然科学版）》2022年第3期100-104,M0008,共6页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(22175057);河南科技大学SRTP项目(2021151);河南省高等学校重点科研项目(20A430012,22A150038)。

摘　　要：为得到均匀分布和循环使用性能良好的催化剂,本文以聚乙烯亚胺改性氧化石墨烯为载体,制备了负载型Ni-Co催化剂。采用红外光谱、扫描电镜和X射线能谱对负载型Ni-Co催化剂的结构和形貌进行了表征。研究结果表明:载体表面改性剂聚乙烯亚胺可以调控催化剂颗粒的均匀分布。该催化剂对氨硼烷水解具有明显的催化作用,5次循环催化后产氢总量依然保持96%。In order to obtain a supported Ni-Co catalyst with uniform dispersion and excellent cyclic catalytic performance,a polyethyleneimine(PEI)modified graphene oxide was employed as an efficient support in this paper.Fourier transform infrared spectroscopy(FTIR),scanning electron microscope(SEM)and X-ray energy spectrum(EDS)characterizations were performed to investigate the structure and morphology of the asprepared catalyst.The results show that the dispersion of the catalyst particles is regulated by the surface modifier PEI.The prepared catalyst exhibites an obvious catalytic performance toward hydrolysis of ammonia borane.Furthermore,it is observed that the produced hydrogen volume still remains 96%of the initial value after 5 catalytic cycles.

关 键 词：氨硼烷 改性氧化石墨烯 水解产氢 Ni-Co催化剂 

分 类 号：O643.36[理学—物理化学] O646.5[理学—化学]