Metal-organic frameworks templated micropore-enriched defective MnCeOx for low temperature chlorobenzene oxidation

被引：17

作者：

Chen, Tong ^{[1
]}

Wang, Rong ^{[1
]}

Sun, Chen ^{[1
]}

Kong, Debao ^{[1
]}

Lu, Shengyong ^{[1
]}

Li, Xiaodong ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Thermal Power Engn, State Key Lab Clean Energy Utilizat, Hangzhou, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2022年 / 645卷

关键词：

Metal-organic frameworks (MOFs); Catalytic oxidation; Chlorobenzene; Micropore; SOLID-SOLUTION CATALYSTS; MANGANESE OXIDE; CHLORINATED VOCS; COMBUSTION; MN; CE; RU; CO; 1,2-DICHLOROBENZENE; COMPOSITES;

D O I：

10.1016/j.apcata.2022.118845

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, a series of metal-organic frameworks (MOFs) derived binary porous MnCeOx catalysts were synthesized via solvothermal method for chlorobenzene (CB) oxidation. Compared with the catalysts from co -precipitation and sol-gel method, Mn1Ce1-MOF catalyst presented the best performance with T90% at 242 C and highest COx yield of 94.6% at 400 ?, owing to its micropore-enriched structure, higher lattice oxygen ratio and better surface reducibility. The HCl selectivity of Mn1Ce1-MOF reached 91.3% at 400 ?. The gaseous byproducts over Mn1Ce1-MOF catalyst were identified and the degradation pathway of CB was proposed. The catalytic activity of Mn1Ce1-MOF catalyst at 300 C could stabilize over 75% for 40 h. The oxidation of Mn3+ and chlorine species adsorption were considered to be the main reasons for the catalyst inactivation. This work provides a highly-efficient MOFs templated porous metal oxide for tail gas purification.

引用

页数：8

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