InfluenceofpreparationmethodonperformanceofNi-CeO2catalystsforreversewater-gasshiftreaction

被引：0

作者：

王路辉 ^{[1
]}

刘辉 ^{[2
]}

刘源 ^{[3
]}

陈英 ^{[1
]}

杨淑清 ^{[1
]}

机构：

[1] Department of Chemical Engineering,School of Petrochemical Technology,Zhejiang Ocean University

[2] School of Food and Pharmaceutical,Zhejiang Ocean University

[3] Department of Catalysis Sciences and Technology,School of Chemical Engineering,Tianjin University

来源：

JournalofRareEarths | 2013年 / 31卷 / 06期

关键词：

reverse water-gas shift reaction; nickel; CeO2; oxygen vacancy; rare earths;

D O I：

暂无

中图分类号：

TQ546 [气化工艺];

学科分类号：

0817 ;

摘要：

This study investigated 1 wt.% Ni-CeO2 catalysts that were prepared using co-precipitation,deposition-precipitation,and impregnation methods for the reverse water-gas shift (RWGS) reaction.Characterizations of the catalyst samples were conducted by Brumauer-Emmett-Teller (BET),atomic absorption spectrophotometer (AAS),X-ray diffraction (XRD),transmission electron microscopy (TEM),high-resolution transmission electron microscopy (HR-TEM) and temperature programmed reduction (TPR).The results showed that the Ni-CeO2 catalyst prepared using the co-precipitation method exhibited the best catalytic performance.In the Ni-CeO2 catalyst prepared using co-precipitation method,a combination of highly dispersed NiO and abundant oxygen vacancies was assumed to play a crucial role in determining the catalytic activity and selectivity of the RWGS reaction.

引用

页码：559 / 564

页数：6

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