Metallic Ni nanocatalyst in situ formed from LaNi5H5 toward efficient CO2 methanation
作者:Zhong, D (Zhong, Dan)[ 1 ] ; Ouyang, LZ (Ouyang, Liuzhang)[ 1,4 ] ; Liu, JW (Liu, Jiangwen)[ 1 ] ; Wang, H (Wang, Hui)[ 1 ] ; Jia, Y (Jia, Yi)[ 2,3,4 ] ; Zhu, M (Zhu, Min)[ 1,4 ]
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷: 44 期: 55 页: 29068-29074 特刊: SI
DOI: 10.1016/j.ijhydene.2019.02.153
出版年: NOV 8 2019
文献类型:Article; Proceedings Paper
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会议名称
会议: 16th International Symposium on Metal-Hydrogen Systems (MH)
会议地点: Guangzhou, PEOPLES R CHINA
会议日期: OCT 28-NOV 02, 2018
摘要
LaNi5 alloy can be utilized to directly store and release hydrogen in mild condition, thus it is considered as a long-term safe and stable solid-state hydrogen storage material. In this work, LaNi5H5 was used as the solid-state hydrogen source in the CO2 methanation reaction. Impressively, the carbon dioxide conversion can be achieved to nearly 100% under 3 MPa mixed gas at 200 degrees C. The microstructure and composition analysis results reveal that the high catalytic activity may originate from the promoted elementary steps over in situ formed metallic Ni nanoparticles during the CO2 methanation process. More importantly, as the lowered reaction temperature prevented the agglomeration of Ni nanoparticles, this catalyst exhibited durable stability with 99% conversion rate of CO2 retained after 400 h cycling test. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
关键词
作者关键词:CO2 methanation; Ni catalyst; Metal hydride; LaNi5
KeyWords Plus:CARBON-DIOXIDE; CATALYSTS; HYDROGENATION; REDUCTION; STORAGE
作者信息
通讯作者地址: Ouyang, LZ (通讯作者)
显示更多South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China.
通讯作者地址: Jia, Y (通讯作者)
显示更多Griffith Univ, Sch Nat Sci, Nathan, Qld 4111, Australia.
通讯作者地址: Jia, Y (通讯作者)
显示更多Griffith Univ, Queensland Micro & Nanotechnol Ctr, Nathan, Qld 4111, Australia.
地址:
显示更多[ 1 ] South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Guangdong, Peoples R China
显示更多[ 2 ] Griffith Univ, Sch Nat Sci, Nathan, Qld 4111, Australia
显示更多[ 3 ] Griffith Univ, Queensland Micro & Nanotechnol Ctr, Nathan, Qld 4111, Australia
[ 4 ] Joint Venture Griffith Univ & South China Univ Te, China Australia Joint Lab Energy & Environm Mat, Nathan, Qld 4111, Australia
电子邮件地址:meouyang@scut.edu.cn
基金资助致谢
基金资助机构显示详情授权号
National Natural Science Foundation of China
NSFC51621001
National Natural Science Foundation of China
51771075
National Natural Science Foundation of Guangdong Province
2016A030312011
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出版商
PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Chemistry; Electrochemistry; Energy & Fuels
Web of Science 类别:Chemistry, Physical; Electrochemistry; Energy & Fuels