Tuning the metal-support interaction in catalysts for highly efficient methane dry reforming reaction

被引：110

作者：

Wang, Fagen ^{[1
,2
]}

Xu, Leilei ^{[2
]}

Zhang, Jian ^{[2
]}

Zhao, Yu ^{[3
]}

Li, Hui ^{[3
]}

Li, He Xing ^{[3
]}

Wu, Kai ^{[4
,5
]}

Xu, Guo Qin ^{[1
,2
,4
]}

Chen, Wei ^{[1
,2
,4
,6
]}

机构：

[1] Natl Univ Singapore, Suzhou Res Inst, Lab Energy & Environm Interface Engn, Suzhou 215123, Peoples R China

[2] Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore

[3] Shanghai Normal Univ, Dept Chem, Shanghai 200234, Peoples R China

[4] Singapore Peking Univ Res Ctr Sustainable Low Car, Singapore 138602, Singapore

[5] Peking Univ, Coll Chem & Mol Engn, BNLMS, SKLSCUSS, Beijing 100871, Peoples R China

[6] Natl Univ Singapore, Dept Phys, Singapore 117543, Singapore

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2016年 / 180卷

基金：

新加坡国家研究基金会;

关键词：

Metal-support interaction; Methane dry reforming; Ir/Ce0.9Pr0.1O2; catalyst; CERIA;

D O I：

10.1016/j.apcatb.2015.07.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The metal-support interaction of Ir/Ce0.9Pr0.1O2 catalyst is tuned by adopting different preparation techniques of deposition-precipitation (DP), co-precipitation (CP) and sequential precipitation (SP) to control the locations of Ir, improving catalytic performance in methane dry reforming reaction. Ir/Ce0.9Pr0.1O2-DP catalyst shows the highest catalytic performance and stability due to the unembedded Ir nanoparticles on catalyst surfaces, followed by Ir/Ce0.9Pr0.1O2-SP and Ir/Ce0.9Pr0.1O2-CP catalysts in which Ir species are either partially or fully embedded in Ce-Pr-O mixed oxides. Our results clearly demonstrate that the metal-support interaction plays important roles in controlling the catalyst sintering and carbonaceous deposition. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：511 / 520

页数：10

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