Dopant Effect of Barium Zirconate-Based Perovskite-Type Catalysts for the Intermediate-Temperature Reverse Water Gas Shift Reaction

被引：72

作者：

Kim, Dae Han ^{[1
]}

Park, Jae Layng ^{[3
]}

Park, Eun Ji ^{[1
]}

Kim, Young Dok ^{[1
,2
]}

Uhm, Sunghyun ^{[3
]}

机构：

[1] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea

[2] Korean Res Inst Chem Technol, Biorefinery Res Grp, Taejon 306600, South Korea

[3] Inst Adv Engn, Adv Mat & Proc Ctr, Yongin 449863, South Korea

来源：

ACS CATALYSIS | 2014年 / 4卷 / 09期

基金：

新加坡国家研究基金会;

关键词：

reverse water gas shift reaction; CO2; barium zirconates; dopant; perovskite; MANGANITE PEROVSKITE; FUEL-CELLS; OXIDE; CO2; ELECTROLYTE; CONVERSION; OXIDATION; HYDROGEN; OXYGEN;

D O I：

10.1021/cs500476e

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 reverse water gas shift (RWGS) reaction catalyzed by barium zirconate-based perovskite-type catalysts doped with Y, Zn, and Ce was investigated in terms of activities and chemical stabilities of various catalysts. All of the catalysts showed stable performances for the RWGS reaction at 600 C for 5 h, and in particular, the BaZr BaZr0.Y-8(0).Zn-16(0).O-04(3) (BZYZ) catalyst showed an outstanding activity with an average CO, conversion of 37.5% and a CO selectivity of 9796. Insertion of additional Ce into the BZYZ structure did not have any positive effect on catalytic activity for the RWGS reaction, even though the ionic conductivity of BZYZ was improved by Ce insertion.

引用

页码：3117 / 3122

页数：6

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