Preparation and Characterization of Low-temperature Catalytic Combustion Catalyst La0.8Ce0.2MnOx/γ-Al2O3

机译：低温催化燃烧催化剂La0.8Ce0.2MnOx /γ-Al2O3的制备与表征

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In this paper, MnOx catalysts, supported on γ-Al2O3 and modified by La and Ce, were prepared by isometrical impregnation method. The load rate of active component and calcination temperature were investigated by the catalytic combustion of toluene. It was found that the best preparation process of catalyst was the loading amount of La0.8Ce0.2MnOx about 12% and 450℃ calcination background. In the gas flow rate of 6000h-1, toluene was completely combusted at the temperature of 320. T ℃ he catalyst was characterized by means of XRD, BET, SEM and XRF. The results showed that the active component on the surface of La0.8Ce0.2MnOx/γ-Al2O3 catalyst was superior in dispersivity, the size of oxide particles on the surface of catalyst was equable and they dispersed evenly. All of these implied fine catalytic activity and were favorable for the catalytic combustion of toluene.

机译：采用等离子浸渍法制备了负载在γ-Al2O3上并经La和Ce改性的MnOx催化剂。通过甲苯的催化燃烧研究了活性成分的负载率和煅烧温度。结果表明，最佳的催化剂制备工艺是La0.8Ce0.2MnOx的负载量约为12％，煅烧背景为450℃。在6000h-1的气体流速下，甲苯在320°C的温度下完全燃烧。通过XRD，BET，SEM和XRF对催化剂进行表征。结果表明，La0.8Ce0.2MnOx /γ-Al2O3催化剂表面的活性成分具有优良的分散性，氧化物在催化剂表面的大小均匀，且分散均匀。所有这些都暗示了良好的催化活性，并且有利于甲苯的催化燃烧。

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来源
《Progress in environmental science and technology.;vol. 3.》|2011年|p.233-238|共6页
会议地点 Dongguan(CN);Dongguan(CN)
作者
WANG Shuai; WANG Yongqiang; ZHAO Chaocheng;
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作者单位

School of Chemistry and Chemical Engineering, China University of Petroleum, Qingdao 266555, Shandong, China;

School of Chemistry and Chemical Engineering, China University of Petroleum, Qingdao 266555, Shandong, China;

School of Chemistry and Chemical Engineering, China University of Petroleum, Qingdao 266555, Shandong, China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类环境科学基础理论;环境科学基础理论;环境科学基础理论;
关键词
low-temperature catalytic combustion; rare earth modification; co-doping; volatile organic compounds;

机译：低温催化燃烧；稀土改性；共掺杂；挥发性有机化合物;

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4. Preparation and Characterization of Low-temperature Catalytic Combustion Catalyst La0.8Ce0.2MnOx/γ-Al2O3 [C] . WANG Shuai, WANG Yongqiang, ZHAO Chaocheng International symposium on environmental science and technology . 2011

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Preparation and Characterization of Low-temperature Catalytic Combustion Catalyst La0.8Ce0.2MnOx/γ-Al2O3

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