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High performance ozone decomposition spinel (Mn,Co)(3)O-4 catalyst accelerating the rate-determining step

文献类型：期刊论文

作者Zhang, Le1,2; Yang, Jiawei3; Wang, Anqi1,2; Chai, Shaohua1,2; Guan, Jian1,2; Nie, Linfeng1,2; Fan, Guijun1,2; Han, Ning1,2,4; Chen, Yunfa1,2,4
刊名APPLIED CATALYSIS B-ENVIRONMENTAL
出版日期2022-04-01
卷号303页码:11
ISSN号0926-3373
关键词Ozone catalyst Spinel Water resistance In-situ Raman spectroscopy
DOI10.1016/j.apcatb.2021.120927
英文摘要At present, it is still a challenge to develop ozone decomposition catalysts with high efficiency and high humidity resistance. Herein, a series of spinel (Mn,Co)(3)O-4 catalysts are synthesized by coprecipitation method. Compared with the Mn3O4 and Co3O4 analogues, the obtained (Mn,Co)(3)O-4 has Co-CoIII(IIx) acceptor-defect and Mn-MnII(IIIx) donor-defect, which could contribute to the electron transfer between catalyst and ozone, accelerating ozone decomposition. Importantly, the in-situ Raman spectra of Mn3O4 shows the accumulation of peroxide species (O-2(2-)) inferring that the decomposition of O-2(2-) is the rate-determining step. On the other side, the reaction of the atomic oxygen with ozone would be rate-determining for Co3O4, as revealed by the low efficiency but no O-2(2-) signal. However, the synergy of Mn and Co in (Mn,Co)(3)O-4 accelerates both the rate-determining steps obtaining high efficiency, which provides a new idea to develop catalysts in ozone elimination.
WOS关键词MANGANESE OXIDE CATALYSTS ; OXIDATION ; TEMPERATURE ; WATER ; CALCINATION ; ADSORPTION ; REDUCTION ; MECHANISM ; COMN2O4 ; CO3O4
资助项目National Key Research and Development Program of China[2016YFC0207100]
WOS研究方向Chemistry ; Engineering
语种英语
出版者ELSEVIER
WOS记录号WOS:000727812600006
资助机构National Key Research and Development Program of China
源URL[http://ir.ipe.ac.cn/handle/122111/51309]  
专题中国科学院过程工程研究所
通讯作者Han, Ning; Chen, Yunfa
作者单位1.Chinese Acad Sci, Inst Proc Engn, Key Lab Sci & Technol Particle Mat, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
3.Tsinghua Univ, Future Lab, Beijing 100084, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Le,Yang, Jiawei,Wang, Anqi,et al. High performance ozone decomposition spinel (Mn,Co)(3)O-4 catalyst accelerating the rate-determining step[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2022,303:11.
APA Zhang, Le.,Yang, Jiawei.,Wang, Anqi.,Chai, Shaohua.,Guan, Jian.,...&Chen, Yunfa.(2022).High performance ozone decomposition spinel (Mn,Co)(3)O-4 catalyst accelerating the rate-determining step.APPLIED CATALYSIS B-ENVIRONMENTAL,303,11.
MLA Zhang, Le,et al."High performance ozone decomposition spinel (Mn,Co)(3)O-4 catalyst accelerating the rate-determining step".APPLIED CATALYSIS B-ENVIRONMENTAL 303(2022):11.

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来源：过程工程研究所

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