Synthesis of Rod-Like Co3O4 Catalyst Derived from Co-MOFs with Rich Active Sites for Catalytic Combustion of Toluene

IF 2.1 4区 化学 Q3 CHEMISTRY, PHYSICAL
Weiliang Han, Guodong Zhang, Zhicheng Tang
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引用次数: 2

Abstract

Co3O4 catalyst derived from Co-MOFs demonstrated rich active sites in the catalytic reaction. In this paper, we prepared the rod-like Co3O4 catalysts by calcining Co-MOFs, which were synthesized by the solvothermal reaction of cobalt nitrate and diverse spatial structure linkers (L3, L4, and L5). Typically, the linkers with different spatial structures (L3, L4, and L5) were synthesized from p-aminobenzoic acid and tetracarboxylic anhydride with different structures (naphthalene-1,4,5,8-tetracarboxylic anhydride, benzene-1,2,4,5-tetracarboxylic anhydride, and perylene-3,4,9,10-tetracarboxylic anhydride). According to the BET analysis, the average pore size of Co3O4 increased with the increase of the linker spatial structure. However, the specific surface area of three Co3O4 increased at first, and then decreased with the increase spatial structure of the linker. Among three Co3O4 catalysts, the Co3O4-L3 exhibited the highest specific surface area. The Co3O4-L3 emerged with superior performance and stability for the catalytic combustion reaction of toluene due to large specific surface area, high redox capacity, plentiful surface active sites, and rich active adsorbed oxygen.

富活性位co - mof衍生的棒状Co3O4催化剂的合成及其对甲苯催化燃烧的影响
co - mof衍生的Co3O4催化剂在催化反应中表现出丰富的活性位点。本文通过煅烧硝酸钴与不同空间结构连接剂(L3、L4、L5)的溶剂热反应合成的Co-MOFs,制备了棒状Co3O4催化剂。通常,由不同结构的对氨基苯甲酸和四羧酸酐(萘-1,4,5,8-四羧酸酐、苯-1,2,4,5-四羧酸酐和苝-3,4,9,10-四羧酸酐)合成具有不同空间结构的连接剂(L3、L4和L5)。BET分析表明,Co3O4的平均孔径随着连接体空间结构的增加而增大。而随着连接体空间结构的增加,三Co3O4的比表面积呈先增大后减小的趋势。在三种Co3O4催化剂中,Co3O4- l3具有最高的比表面积。Co3O4-L3具有比表面积大、氧化还原能力强、表面活性位点丰富、活性氧丰富等特点,在甲苯的催化燃烧反应中表现出优异的性能和稳定性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Catalysis Surveys from Asia
Catalysis Surveys from Asia 化学-物理化学
CiteScore
4.80
自引率
0.00%
发文量
29
审稿时长
>12 weeks
期刊介绍: Early dissemination of important findings from Asia which may lead to new concepts in catalyst design is the main aim of this journal. Rapid, invited, short reviews and perspectives from academia and industry will constitute the major part of Catalysis Surveys from Asia . Surveys of recent progress and activities in catalytic science and technology and related areas in Asia will be covered regularly as well. We would appreciate critical comments from colleagues throughout the world about articles in Catalysis Surveys from Asia . If requested and thought appropriate, the comments will be included in the journal. We will be very happy if this journal stimulates global communication between scientists and engineers in the world of catalysis.
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