HCHO Removal by MnO2(x)-CeO2: Influence of the Synergistic Effect on the Catalytic Activity

doi:10.1021/acs.iecr.9b05191

	HCHO Removal by MnO2(x)-CeO2: Influence of the Synergistic Effect on the Catalytic Activity
	Guan, Shengnan 2; Huang, Qifu 3; Ma, Jianru 2; Li, Wenzhi 2; Ogunbiyi, Ajibola T.2; Zhou, Zean 2; Chen, Kun 2; Zhang, Qi 1
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2020-01-15
卷号	59 期号:2 页码:596-608
ISSN号	0888-5885
DOI	10.1021/acs.iecr.9b05191
通讯作者	Li, Wenzhi(liwenzhi@ustc.edu.cn) ; Zhang, Qi(zhangqi@ms.giec.ac.cn)
英文摘要	The catalytic performance of MnO2(x)-CeO2 (x = Mn/Ce molar ratio) and the synergistic effect have been investigated in formaldehyde removal. The results showed that formaldehyde achieved 100% conversion at 60 degrees C for MnO2(1.5)-CeO2, with the gas hourly space velocity = 120 000 mL h(-1) g(cat)(-1). It was lower than the formaldehyde removal temperature of MnO2 (130 degrees C) and CeO2 (170 degrees C). The apparent activation energy for HCHO oxidation with MnO2(1.5)-CeO2 was 34.2 kJ mol(-1). The partial mutual replacement of Mnx+ and Cex+ decreases the crystallite size due to the MnO2/CeO2 interaction. The X-ray photoelectron spectroscopy and the Raman analyses show that the Mn3+/Mn and O-ads/G(latt) ratios and the relative concentrations of oxygen vacancies for MnO2(1)-CeO2 and MnO2(1.5) CeO2 were higher than those of the rest of the catalysts. Thus, the lattice oxygen (O-latt) from CeO2 readily transfers to the oxygen vacancy, achieving O-latt activation to surface-adsorbed oxygen (O-ads).
资助项目	National Natural Science Foundation of China[51676178] ; National Key Technology R&D Program of China[2018YFB1501600]
WOS关键词	BIRNESSITE-TYPE MNO2 ; FORMALDEHYDE OXIDATION ; TEMPERATURE OXIDATION ; EFFICIENT CATALYSTS ; SURFACE-CHEMISTRY ; CO ; COMBUSTION ; OXIDES ; PHOTOCATALYST ; NANOPARTICLES
WOS研究方向	Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000508469500006
资助机构	National Natural Science Foundation of China ; National Key Technology R&D Program of China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/26411]
专题	中国科学院广州能源研究所
通讯作者	Li, Wenzhi; Zhang, Qi
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.Univ Sci & Technol China, Sch Engn Sci, Dept Thermal Sci & Energy Engn, Basic Res Lab Biomass Convers, Hefei 230026, Anhui, Peoples R China 3.Beijing Mech Equipment Inst, 50 Yongding Rd, Beijing 100854, Peoples R China
推荐引用方式 GB/T 7714	Guan, Shengnan,Huang, Qifu,Ma, Jianru,et al. HCHO Removal by MnO2(x)-CeO2: Influence of the Synergistic Effect on the Catalytic Activity[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2020,59(2):596-608.
APA	Guan, Shengnan.,Huang, Qifu.,Ma, Jianru.,Li, Wenzhi.,Ogunbiyi, Ajibola T..,...&Zhang, Qi.(2020).HCHO Removal by MnO2(x)-CeO2: Influence of the Synergistic Effect on the Catalytic Activity.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,59(2),596-608.
MLA	Guan, Shengnan,et al."HCHO Removal by MnO2(x)-CeO2: Influence of the Synergistic Effect on the Catalytic Activity".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 59.2(2020):596-608.