Methanation of Carbon Dioxide over Ni-Ce-Zr Oxides Prepared by One-Pot Hydrolysis of Metal Nitrates with Ammonium Carbonate
2017
发表期刊CATALYSTS
ISSN2073-4344
卷号7期号:4页码:-
发表状态已发表
DOI10.3390/catal7040104
摘要

Ni-Ce-Zr mixed oxides were prepared through one-pot hydrolysis of mixed metal nitrates with ammonium carbonate for CO2 methanation. The effects of Ce/Zr molar ratio and Ni content on catalysts' physical and chemical properties, reduction degree of Ni2+, and catalytic properties were systematically investigated. The results showed that Zr could lower metallic Ni particle sizes and alter interaction between Ni and supports, resulting in enhancements in the catalytic activity for CO2 methanation. The Ni-Ce-Zr catalyst containing 40 wt % Ni and Ce/Zr molar ratio of 9:1 exhibited the optimal catalytic properties, with 96.2% CO2 conversion and almost 100% CH4 selectivity at a low temperature of 275 degrees C. During the tested period of 500 h, CO2 conversion and CH4 selectivity over Ni-Ce-Zr catalyst kept constant under 300 degrees C.

关键词Carbon Dioxide Methanation Ce-zr Oxide Nickel Catalyst
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Physical
WOS记录号WOS:000403448000009
出版者MDPI AG
引用统计
文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/6216
专题个人在本单位外知识产出
作者单位
1.State Key Lab Adv Special Steel, Shanghai 200072, Peoples R China
2.Shanghai Univ, Sch Mat Sci & Engn, Shanghai Key Lab Adv Ferromet, Shanghai 200072, Peoples R China
推荐引用方式
GB/T 7714
Nie, Wangxin,Zou, Xiujing,Chen, Chenju,et al. Methanation of Carbon Dioxide over Ni-Ce-Zr Oxides Prepared by One-Pot Hydrolysis of Metal Nitrates with Ammonium Carbonate[J]. CATALYSTS,2017,7(4):-.
APA Nie, Wangxin,Zou, Xiujing,Chen, Chenju,Wang, Xueguang,Ding, Weizhong,&Lu, Xionggang.(2017).Methanation of Carbon Dioxide over Ni-Ce-Zr Oxides Prepared by One-Pot Hydrolysis of Metal Nitrates with Ammonium Carbonate.CATALYSTS,7(4),-.
MLA Nie, Wangxin,et al."Methanation of Carbon Dioxide over Ni-Ce-Zr Oxides Prepared by One-Pot Hydrolysis of Metal Nitrates with Ammonium Carbonate".CATALYSTS 7.4(2017):-.
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