Highly efficient catalytic oxidation of benzene over Ag assisted Co3O4 catalysts

被引：51

作者：

Ma, Xiuyun ^{[1
,2
]}

Yu, Xiaolin ^{[1
,2
]}

Ge, Maofa ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, CAS Res Educ Ctr Excellence Mol Sci, Inst Chem,Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China

来源：

CATALYSIS TODAY | 2021年 / 376卷

基金：

中国国家自然科学基金;

关键词：

Catalytic oxidation; Benzene; One-pot solvothermal method; Ag/Co3O4; COBALT OXIDE CATALYSTS; SOOT COMBUSTION; TEMPERATURE; PERFORMANCE; VOCS; REMOVAL; CO; FORMALDEHYDE; PHASE; MNO2;

D O I：

10.1016/j.cattod.2020.05.033

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Ag supported on Co3O4 catalysts were prepared by facile one-pot solvotermal method. The obtained Ag/Co3O4 catalysts exhibited the excellent catalytic activity of benzene oxidation in comparison with Ag/Co3O4-I catalyst synthesized by the impregnation method. The characterization results revealed that Ag/Co3O4 catalysts possessed more surface active oxygen species and lattice defects, and exhibited the excellent low-temperature reducibility. The catalytic activity of benzene oxidation was in the order of 2%Ag/Co3O4 > 1%Ag/Co3O4 > 2%Ag/Co3O4-I > Co3O4. Accordingly, 2%Ag/Co3O4 catalyst exhibited the T-50 and T-90 values of 181 and 201 degrees C for benzene oxidation, which were lower than those of other catalysts. In addition, the catalysts exhibit the outstanding long-term thermal stability.

引用

页码：262 / 268

页数：7