CeO2-supported Au-38(SR)(24) nanocluster catalysts for CO oxidation: a comparison of ligand-on and -off catalysts

	CeO2-supported Au-38(SR)(24) nanocluster catalysts for CO oxidation: a comparison of ligand-on and -off catalysts
	Nie, Xiaotao 1,3; Zeng, Chenjie 2; Ma, Xiangang 1; Qian, Huifeng 2; Ge, Qingjie 1; Xu, Hengyong 1; Jin, Rongchao 2
刊名	nanoscale
	2013
卷号	5 期号:13 页码:5912-5918
英文摘要	the catalytic properties of atomically precise, thiolate-protected au-38(sr)(24) (r = ch2ch2ph) nanoclusters supported on ceo2 were investigated for co oxidation in a fixed bed quartz reactor. oxygen (o-2) thermal pretreatment of au-38(sr)(24)/ceo2 at a temperature between 100 and 175 degrees c largely enhanced the catalytic activity, while pretreatment at higher temperatures (>200 degrees c) for removing thiolate instead gave rise to a somewhat lower activity than that for 175 degrees c pretreatment, and the ligand-off clusters were also found to be less stable. the co conversion in the case of wet feed-gas (i.e. the presence of h2o vapor) was appreciably higher than the case of dry feed-gas when the reaction temperature was kept relatively low (between 60 and 80 degrees c), and interestingly the ligand-on and ligand-off catalysts exhibited opposite response to water vapor. finally, we discussed some insights into the catalytic reaction involving the well-defined gold nanocluster catalyst.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, multidisciplinary ; nanoscience & nanotechnology ; materials science, multidisciplinary ; physics, applied
研究领域[WOS]	chemistry ; science & technology - other topics ; materials science ; physics
关键词[WOS]	supported au catalysts ; precise gold nanoclusters ; stabilized au-38 clusters ; carbon-monoxide ; au-25 clusters ; temperature ; nanoparticles ; size
收录类别	SCI
语种	英语
WOS记录号	WOS:000320398300032
公开日期	2015-11-10
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/137904]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy DNL, Dalian 116023, Peoples R China 2.Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Nie, Xiaotao,Zeng, Chenjie,Ma, Xiangang,et al. CeO2-supported Au-38(SR)(24) nanocluster catalysts for CO oxidation: a comparison of ligand-on and -off catalysts[J]. nanoscale,2013,5(13):5912-5918.
APA	Nie, Xiaotao.,Zeng, Chenjie.,Ma, Xiangang.,Qian, Huifeng.,Ge, Qingjie.,...&Jin, Rongchao.(2013).CeO2-supported Au-38(SR)(24) nanocluster catalysts for CO oxidation: a comparison of ligand-on and -off catalysts.nanoscale,5(13),5912-5918.
MLA	Nie, Xiaotao,et al."CeO2-supported Au-38(SR)(24) nanocluster catalysts for CO oxidation: a comparison of ligand-on and -off catalysts".nanoscale 5.13(2013):5912-5918.