Effect of Co-Doping on Iron-based Oxygen Carrier for CO Oxidation in Chemical Looping Combustion

被引：2

作者：

Wang, Lei ^{[1
]}

Qin, Wu ^{[1
]}

Xiao, Xianbin ^{[1
]}

Zheng, Zongming ^{[1
]}

Zhang, Junjiao ^{[1
]}

Dong, Changqing ^{[1
]}

Yang, Yongping ^{[1
]}

机构：

[1] North China Elect Power Univ, Sch Renewable Energy Engn, Natl Engn Lab Biomass Power Generat Equipment, Beijing 102206, Peoples R China

来源：

ADVANCED TECHNOLOGIES IN MANUFACTURING, ENGINEERING AND MATERIALS, PTS 1-3 | 2013年 / 774-776卷

关键词：

CLC; Co-doped; Fe-based oxygen carrier; CO; DFT; GRAPHENE OXIDE; NANOCOMPOSITES;

D O I：

10.4028/www.scientific.net/AMR.774-776.725

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper focuses on theoretical research of Co-doped Fe-based oxygen carrier for CO oxidation in chemical-looping combustion (CLC) system. Density functional theory (DFT) calculations were carried out to study of interaction between CO molecules and CoO/Fe2O3 cluster, it is found that dissociation of O atom through breaking of Fe-O bonds in the Fe2O3 system is the key step for CO oxidation reaction, and Low-fold O atoms in Fe2O3 system could more readily dissociate from external surface. Moreover, the presence of CoO in Fe2O3 could decrease activation energy and reaction energy of CO/Co-Fe2O3 system, hence the reaction between CO and Fe2O3 is promoted.

引用

页码：725 / 728

页数：4

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