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Role of Water in CO Oxidation on Gold Catalysts
Fujitani, T.1; Nakamura, I.1; Haruta, M.2,3
关键词Gold Catalyst Nanoparticles Co Oxidation Effect Of Water Metal Oxide Support
刊名CATALYSIS LETTERS
2014-09-01
DOI10.1007/s10562-014-1325-2
144期:9页:1475-1486
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]SUPPORTED AU CATALYSTS ; RAY-ABSORPTION SPECTROSCOPY ; CARBON-MONOXIDE OXIDATION ; LOW-TEMPERATURE OXIDATION ; AU/TIO2 CATALYST ; PRETREATMENT CONDITIONS ; SELECTIVE OXIDATION ; AU/FE2O3 CATALYSTS ; PERIMETER SITES ; HYDROXYL-GROUPS
英文摘要Gold nanoparticles supported on base metal oxides exhibit high catalytic activity in the low temperature oxidation of CO. Numerous studies have been carried out by using powder, single crystal, and planar model catalysts together with density functional theory calculations to elucidate the reaction mechanism and the nature of the active sites. A characteristic feature of these catalysts is that the moisture contained in the catalyst and in the reactant gas markedly enhances CO2 formation rates. The promoting role of moisture, which is advantageous for the practical applications to air purifiers, can be classified into four categories: (i) maintain cationic state of gold (Au3+ or Au+), (ii) direct involvement of H2O and OH- groups in CO oxidation, (iii) activation of O-2 molecules, and (iv) transformation of catalytic intermediates and inhibitors (spectators) such as carbonate species. The elucidation of the role of water in CO oxidation will deepen the understanding of the unique catalysis by gold.
语种英语
WOS记录号WOS:000340928800001
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145542
专题中国科学院大连化学物理研究所
作者单位1.Natl Inst Adv Ind Sci & Technol, Res Inst Innovat Sustainable Chem, Tsukuba, Ibaraki 3058569, Japan
2.Tokyo Metropolitan Univ, Grad Sch Urban Environm Sci, Dept Appl Chem, Res Ctr Gold Chem, Hachioji, Tokyo 1920397, Japan
3.Chinese Acad Sci, Dalian Inst Chem Phys, Gold Catalysis Res Ctr, Dalian 116023, Peoples R China
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Fujitani, T.,Nakamura, I.,Haruta, M.. Role of Water in CO Oxidation on Gold Catalysts[J]. CATALYSIS LETTERS,2014,144(9):1475-1486.
APA Fujitani, T.,Nakamura, I.,&Haruta, M..(2014).Role of Water in CO Oxidation on Gold Catalysts.CATALYSIS LETTERS,144(9),1475-1486.
MLA Fujitani, T.,et al."Role of Water in CO Oxidation on Gold Catalysts".CATALYSIS LETTERS 144.9(2014):1475-1486.
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