Effect of crystallization temperature on catalytic performance of Co3O4 catalysts in decomposition of N2O [晶化温度对Co3O4催化分解N2O的性能影响] - 文章详情页

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摘要：

Co3O4　composite　metal　oxide　catalyst　is　prepared　via　the　solvent　assisted　hydrothermal　method　using　cobalt　acetate　as　cobalt　source.　Its　physicochemical　properties　are　characterized　by　XRD,　SEM,　BET　and　H2-TPR,　XPS,　N2O-TPSR　and　O2-N2O-TPSR.　The　activity　of　the　catalyst　in　catalytic　decomposition　of　N2O　is　evaluated　in　a　fixed-bed　micro-reactor　and　the　effects　of　crystallization　temperature　on　its　activity　in　catalytic　decomposition　of　N2O　are　investigated.　Evaluation　results　show　that　Co3O4　catalysts　prepared　via　solvent　assisted　hydrothermal　method　have　a　spinel　structure　and　the　crystallization　temperature　does　affect　catalysts＇　morphology,　redox　performance　and　activity　in　catalytic　decomposition　of　N2O.　The　result　by　N2O-TPSR　and　O2-N2O-TPSR　shows　that　the　oxygen　adsorbed　on　the　catalyst　surface　plays　an　important　role　in　the　catalytic　decomposition　of　N2O.　The　redox　performance　of　Co3O4　catalyst　prepared　at　a　crystallization　temperature　of　160℃　is　good,　over　which　the　catalytic　decomposition　of　N2O　can　be　performed　under　a　low　temperature.　The　T10　and　T95　are　266℃　and　410℃,　respectively　under　the　conditions　that　reaction　gas　consists　(volume　fraction)　0.68%　of　N2O,　0.88%　of　O2　and　Ar　as　equilibrium　gas　with　a　flow　rate　of　80　mL•min-1.　©　2019,　China　National　Chemical　Information　Center.　All　right　reserved.

关键词：

Co3O4; Crystallization temperature; N2O

作者机构：

[ 1 ] [Sun, J.-R.]School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China
[ 2 ] [Sun, J.-R.]Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China
[ 3 ] [Sun, J.-R.]College of Environmental and Energy Engineering, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Xia, L.]School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China
[ 5 ] [Li, J.-Y.]School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China
[ 6 ] [Li, S.-X.]School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China
[ 7 ] [Li, S.-X.]Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China
[ 8 ] [Liu, X.-G.]School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China
[ 9 ] [Liu, X.-G.]Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China
[ 10 ] [Wang, H.]School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China
[ 11 ] [Wang, H.]Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China
[ 12 ] [Li, C.-Q.]School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China
[ 13 ] [Li, C.-Q.]Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China
[ 14 ] [Song, Y.-J.]School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617, China
[ 15 ] [Song, Y.-J.]Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing, 102617, China

通讯作者信息：

[Wang, H.]School of Chemical Engineering, Beijing Institute of Petrochemical TechnologyChina

电子邮件地址：

wanghong@bipt.edu.cn

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