Highly efficient catalytic oxidation of benzene over Ag assisted Co3O4 catalysts

被引：46
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
收藏
页码：262 / 268
页数：7
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