Metallic Ni nanocatalyst in situ formed from LaNi5H5 toward efficient CO2 methanation

时间:2019-12-29作者:浏览量:397


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