Low-temperature catalytic combustion of trichloroethylene over MnOx-CeO2 mixed oxide catalysts

被引：12

作者：

Shen, Kai ^{[1
]}

Jiang, Mingxiang ^{[1
]}

Yang, Xinwei ^{[2
]}

Zhou, Weizhong ^{[2
]}

Dai, Qiguang ^{[1
]}

Wang, Xingyi ^{[1
]}

Wang, Li ^{[1
]}

Guo, Yun ^{[1
]}

Guo, Yanglong ^{[1
]}

Zhan, Wangcheng ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Res Inst Ind Catalysis, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China

[2] Hudong Heavy Machinery Co Ltd, Shanghai 200237, Peoples R China

来源：

JOURNAL OF RARE EARTHS | 2023年 / 41卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Catalytic combustion; Trichloroethylene; Cerium oxide; Manganese oxide; Rare Earths; OXIDATION; NO; PALLADIUM; CHLORIDE; VOCS; 1,2-DICHLOROETHANE; DECOMPOSITION; DESTRUCTION; PERFORMANCE; REDUCTION;

D O I：

10.1016/j.jre.2022.04.004

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The cerium-based catalysts were investigated for the catalytic combustion of trichloroethylene (TCE) and exhibit a surprising catalytic activity. MnOx was doped into CeO2 by a citric acid (CA) sol-gel method, and the effect of Mn content on the physicochemical properties and catalytic activities of MnOx-CeO2 mixed oxides was investigated systemically. The introduction of MnOx into CeO2 can evidently improve the catalytic activity and reaction stability of the CeO2 catalyst, and the catalytic activity can be maintained for more than 100 h at 250 degrees C under air atmosphere. Moreover, a possible reaction mechanism and a catalytic cycle for the catalytic combustion of TCE over the MnOx-CeO2 mixed oxide catalysts are proposed.(c) 2022 Chinese Society of Rare Earths. Published by Elsevier B.V. All rights reserved.

引用

页码：523 / 530

页数：8

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