Deep Understanding into the Effect of Fe on CO2 Methanation: A Support-Dependent Phenomenon

被引：7
作者：
Du, Yixiong [1 ]
Qin, Chuan [1 ]
Xu, Yanfei [1 ]
Tian, Shuhang [3 ]
Bai, Jingyang [1 ]
Ding, Mingyue [1 ,2 ]
机构：
[1] Wuhan Univ, Inst Technol Sci, Sch Power & Mech Engn, Hubei Prov Key Lab Accoutrement Tech Fluid Machine, Wuhan 430072, Peoples R China
[2] Shenzhen Res Inst Wuhan Univ, Shenzhen 518108, Peoples R China
[3] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2022年 / 61卷 / 29期
基金：
中国国家自然科学基金;
关键词：
NI CATALYSTS; PROMOTION;
D O I：
10.1021/acs.iecr.1c03502
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
An in-depth understanding of the influence mechanism of the nonprecious metal Fe promoter on CO2 methanation is of great significance to the optimal design of high-efficiency CO2 methanation catalysts. In this research, CeO(2 )and Al2O3-supported Ni-based catalysts were prepared and evaluated for the CO2 methanation reaction. Interestingly, it was found that the addition of Fe into the CeO2-supported Ni catalyst lowered the CO2 methanation performance, while it greatly enhanced the performance of the Al2O3-supported Ni catalyst. A variety of factors over Fe-modified catalysts were explored, in which surface basicity along with oxygen vacancies could contribute to the adjustment of the CO(2 )methanation performance.
引用
收藏
页码：10357 / 10364
页数：8
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