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题名: Catalytic combustion of formaldehyde on gold/iron-oxide catalysts
作者: Li, Changyan2;  Shen, Yuenian2;  Jia, Melling3, 4;  Sheng, Shishan5;  Adebajo, Moses O.1;  Zhu, Huaiyong1
关键词: gold/iron-oxide catalyst ;  catalytic combustion of formaldehyde ;  oxidation state ;  gold nanocrystals
刊名: CATALYSIS COMMUNICATIONS
发表日期: 2008-03-01
DOI: 10.1016/j.catcom.2007.06.020
卷: 9, 期:3, 页:355-361
收录类别: SCI ;  CCR
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: A series of gold/iron-oxide catalysts for catalytic combustion of formaldehyde were prepared by co-precipitation. The catalyst containing 7.10 wt% of gold exhibited the highest catalytic activity. On this cata:lyst, the catalytic combustion reaction of formaldehyde proceeded at considerable rates at 20 degrees C and complete burn-off of formaldehyde was achieved at 80 degrees C. The catalysts were stable and remained active in the presence of moisture and are good substitutes for the noble metals (Pt, Pd) catalysts. The structure of catalysts, the valence state of gold and the size of gold particles were investigated by X-ray diffraction, X-ray photoelectron spectroscopy and transmission electron microscopy techniques. Gold atoms with fractional positive charge (Au delta+) were found to exist in the catalyst and play an important role in the catalytic activity. Interaction between active species and support also provided important contribution to the valence state of gold and the activity for the catalytic combustion of HCHO. (c) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: VOLATILE ORGANIC-COMPOUNDS ;  SUPPORTED MANGANESE-PALLADIUM ;  LOW-TEMPERATURE OXIDATION ;  GOLD CATALYSTS ;  CO OXIDATION ;  VOCS COMBUSTION ;  CARBON-MONOXIDE ;  ALUMINA ;  NANOPARTICLES ;  ACTIVATION
语种: 英语
WOS记录号: WOS:000252293400007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141139
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Queensland Univ Technol, Sch Phys & Chem Sci, Brisbane, Qld 4001, Australia
2.Inner Mongolia Univ, Coll Chem & Chem Engn, Hohhot 010021, Peoples R China
3.Inner Mongolia Normal Univ, Coll Chem, Hohhot 010022, Peoples R China
4.Inner Mongolia Normal Univ, Coll Chem, Hohhot 010021, Peoples R China
5.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Li, Changyan,Shen, Yuenian,Jia, Melling,et al. Catalytic combustion of formaldehyde on gold/iron-oxide catalysts[J]. CATALYSIS COMMUNICATIONS,2008,9(3):355-361.
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