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Performance and characterization of supported metal catalysts for complete oxidation of formaldehyde at low temperatures
Peng, Jiaxi; Wang, Shudong; Wang SD(王树东); Wang SD(王树东)
关键词Catalytic Oxidation Formaldehyde Titania Supported Platinum Catalyst
刊名APPLIED CATALYSIS B-ENVIRONMENTAL
2007-05-11
DOI10.1016/j.apcatb.2006.12.012
73期:3-4页:282-291
收录类别SCI
文章类型Article
部门归属9
项目归属901
产权排名1;1
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]VOLATILE ORGANIC-COMPOUNDS ; ROOM-TEMPERATURE ; OXIDE CATALYSTS ; PT/TIO2 CATALYST ; COMBUSTION ; PALLADIUM ; PLATINUM ; DECOMPOSITION ; ADSORPTION ; IGNITION
英文摘要Activities of a series of metals (Pt, Pd, Rh, Cu, Mn) supported on TiO2 were investigated for the catalytic oxidation of formaldehyde. Among them, Pt/TiO2 was found to be the most promising catalyst. Nitrogen adsorption, hydrogen chemisorption, X-ray diffraction (XRD), transmission electron microscopy (TEM) and temperature programmed reduction (TPR) by H-2 were used to characterize the platinum catalysts. Using Ce0.8Zr0.2O2, Ce0.2Zr0.8O2, SiO2 as supports instead of TiO2, the activity sequence of 0.6 wt.% platinum with respect to the supports is TiO2 > SiO2 > Ce0.8Zr0.2O2 > Ce0.2Zr0.8O2, and this appears to be correlated with the dispersion of platinum on supports rather than the specific surface areas of the catalysts. Platinum loading on TiO2 has a great effect on the catalytic activity, and 0.6 wt.% Pt/TiO2 catalyst was observed to be the most active, which could be attributed to the well-dispersed platinum surface phase. The reduction temperature greatly affects the particle size and, consequently, the catalytic activity. The smaller particle size of platinum, due to its high dispersion on support, has a positive effect on catalytic performance. Increasing formaldehyde concentration and space velocity exhibits an inhibiting effect on the catalytic activity. (c) 2006 Elsevier B.V. All rights reserved.
语种英语
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WOS记录号WOS:000246539900008
引用统计
被引频次:99[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/321008/98955
专题中国科学院大连化学物理研究所
通讯作者Wang SD(王树东); Wang SD(王树东)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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GB/T 7714
Peng, Jiaxi,Wang, Shudong,Wang SD,et al. Performance and characterization of supported metal catalysts for complete oxidation of formaldehyde at low temperatures[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2007,73(3-4):282-291.
APA Peng, Jiaxi,Wang, Shudong,王树东,&王树东.(2007).Performance and characterization of supported metal catalysts for complete oxidation of formaldehyde at low temperatures.APPLIED CATALYSIS B-ENVIRONMENTAL,73(3-4),282-291.
MLA Peng, Jiaxi,et al."Performance and characterization of supported metal catalysts for complete oxidation of formaldehyde at low temperatures".APPLIED CATALYSIS B-ENVIRONMENTAL 73.3-4(2007):282-291.
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