摘要
The plasma catalytic degradation of o-xylene in simulated air was improved by loading low amounts of Pt,Pd,or Au onto Co_(3)O_(4).At room temperature,o-xylene conversion and CO_(x)selectivity using a0.1 wt%Pt/Co_(3)O_(4)catalyst reached 98.9%and 80%,and the energy efficiency was at the top level in comparison with values in the literature.A stable o-xylene degradation performance could be obtained by online regenerating the heat-insulated reactor with a high energy density.After characterization,it was found that the loading of nanosized Pt not only increased the Co^(3+)/Co^(2+)ratio,where the Co^(3+)benefitted the formation of reactive oxygen species,but also conduced Pt^(0)to oxygen activation,resulting in effective promotion of complete o-xylene oxidation.Operando plasma diffuse reflectance infrared Fourier transform spectroscopy demonstrated the complete o-xylene oxidation and proved that Pt played a key role in the complete oxidation of o-xylene.
作者
狄书成
徐家成
姚水良
李晶
吴祖良
高尔豪
朱佳丽
戴连欣
刘卫华
张补河
张峻维
Shucheng DI;Jiacheng XU;Shuiliang YAO;Jing LI;Zuliang WU;Erhao GAO;Jiali ZHU;Lianxin DAI;Weihua LIU;Buhe ZHANG;Junwei ZHANG(School of Environmental Science and Engineering,Changzhou University,Changzhou 213164,People's Republic of China;Key Laboratory of Advanced Plasma Catalysis Engineering for China Petrochemical Industry,Changzhou 213164,People's Republic of China;Jiangxi Xintai Functional Materials Technology Co.Ltd.,Ji'an 343100,People's Republic of China)
基金
supported by National Natural Science Foundation of China(No.12075037)
Research and Application Service Platform Project of API Manufacturing Environmental Protection and Safety Technology in China(No.2020-0107-3-1)。