通过草酸盐法制备具有增强催化活性用于去除苯的铈锰复合氧化物

Preparation of Ce⁻Mn Composite Oxides with Enhanced Catalytic Activity for Removal of Benzene through Oxalate Method.

作者信息

Yang Min, Shen Genli, Liu Mi, Chen Yunfa, Wang Zhen, Wang Qi

机构信息

Department of Chemistry, School of Chemistry and Biological Engineering, University of Science and Technology, Beijing 100083, China.

CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanaoscience, National Center for Nanoscience and Technology, Beijing 100190, China.

出版信息

Nanomaterials (Basel). 2019 Feb 3;9(2):197. doi: 10.3390/nano9020197.

DOI:10.3390/nano9020197

PMID:30717455

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6409587/

Abstract

The catalytic activities of CeO₂-MnO composite oxides synthesized through oxalate method were researched. The results exhibited that the catalytic properties of CeO₂-MnO composite oxides were higher than pure CeO₂ or MnO. When the Ce/Mn ratio was 3:7, the catalytic activity reached the best. In addition, the activities of CeO₂-MnO synthesized through different routes over benzene oxidation were also comparative researched. The result indicated that the catalytic property of sample prepared by oxalate method was better than others, which maybe closely related with their meso-structures. Meanwhile, the effects of synergistic interaction and oxygen species in the samples on the catalytic ability can't be ignored.

摘要

研究了通过草酸盐法合成的CeO₂-MnO复合氧化物的催化活性。结果表明，CeO₂-MnO复合氧化物的催化性能高于纯CeO₂或MnO。当Ce/Mn比为3:7时，催化活性达到最佳。此外，还对通过不同路线合成的CeO₂-MnO在苯氧化反应中的活性进行了比较研究。结果表明，草酸盐法制备的样品催化性能优于其他样品，这可能与其介观结构密切相关。同时，样品中协同相互作用和氧物种对催化能力的影响也不容忽视。