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Pt/MnOx-CeO2 catalysts for the complete oxidation of formaldehyde at ambient temperature
Tang, Xingfu; Chen, Junli; Huang, Xiumin; Xu, Yide; Shen, Wenjie
关键词Mnox-ceo2 Mixed Oxides Pt/mnox-ceo2 Catalyst Complete Oxidation Formaldehyde Platinum Precursor
刊名APPLIED CATALYSIS B-ENVIRONMENTAL
2008-05-30
DOI10.1016/j.apcatb.2007.12.007
81期:1-2页:115-121
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]WET-OXIDATION ; ROOM-TEMPERATURE ; CERIUM OXIDE ; PT/AL2O3 CATALYSTS ; PT/TIO2 CATALYST ; INDOOR AIR ; ADSORPTION ; CHLORINE ; COMBUSTION ; REDUCTION
英文摘要MnOx-CeO2 mixed oxides with a Mn/(Mn + Ce) molar ratios of 0-1 were prepared by a modified coprecipitation method and investigated for the complete oxidation of formaldehyde. The MnOx-CeO2 with Mn/(Mn + Ce) molar ratio of 0.5 exhibited the highest catalytic activity among the MnOx-CeO2 mixed oxides. Structure analysis by X-ray powder diffraction and temperature-programmed reduction of hydrogen revealed that the formation of MnOx-CeO2 solid solution greatly improved the low-temperature reducibility, resulting in a higher catalytic activity for the oxidation of formaldehyde. Promoting effect of Pt on the MnOx-CeO2 mixed oxide indicated that both the Pt precursors and the reduction temperature greatly affected the catalytic performance. Pt/MnOx-CeO2 catalyst prepared from chlorine-free precursor showed extremely high activity and stability after pretreatment with hydrogen at 473 K. 100% conversion of formaldehyde was achieved at ambient temperature and no deactivation was observed for 120 h time-on-stream. The promoting effect of Pt was ascribed to enhance the effective activation of oxygen molecule on the MnOx-CeO2 support. (C) 2007 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000256603200012
引用统计
被引频次:197[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140861
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Tang, Xingfu,Chen, Junli,Huang, Xiumin,et al. Pt/MnOx-CeO2 catalysts for the complete oxidation of formaldehyde at ambient temperature[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2008,81(1-2):115-121.
APA Tang, Xingfu,Chen, Junli,Huang, Xiumin,Xu, Yide,&Shen, Wenjie.(2008).Pt/MnOx-CeO2 catalysts for the complete oxidation of formaldehyde at ambient temperature.APPLIED CATALYSIS B-ENVIRONMENTAL,81(1-2),115-121.
MLA Tang, Xingfu,et al."Pt/MnOx-CeO2 catalysts for the complete oxidation of formaldehyde at ambient temperature".APPLIED CATALYSIS B-ENVIRONMENTAL 81.1-2(2008):115-121.
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