Tailoring the Oxidation Activity of Pt Nanoclusters via Encapsulation

	Tailoring the Oxidation Activity of Pt Nanoclusters via Encapsulation
	Zhang, Fan 1; Jiao, Feng 1; Pan, Xiulian 1; Gao, Kang 2; Xiao, Jianping 1; Zhang, Shuo 3; Bao, Xinhe 1
刊名	acs catalysis
	2015-02-01
卷号	5 期号:2 页码:1381-1385
关键词	platinum cluster confined catalysis carbon nanotube toluene oxidation
英文摘要	to tailor the catalytic activities of metal catalysts at will to achieve efficient conversion in chemical processes remains a challenge, particularly for noble metals, such as pt. we demonstrate herein that encapsulation within the carbon nanotube (cnt) channels with a diameter of 1.0-1.5 nm not only allows restriction of the size of pt nanoclusters around 1.0 nm but also enables modulating of the pt species at the active reduced states through host guest interaction. the encapsulated pt is protected from oxygen under reaction conditions in toluene oxidation up to 200 degrees c, as unveiled by in situ x-ray absorption spectroscopy and density functional theory calculations. as a result, the encapsulated pt clusters deliver a remarkably higher activity and stability than the clusters located on the open surfaces of the cnt exterior walls and carbon black support, although the latter are much more accessible to reactants. this characteristic of the cnt channels can be explored to tune the properties of other metal catalysts for oxidation reactions.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, physical
研究领域[WOS]	chemistry
关键词[WOS]	organic-compounds vocs ; carbon nanotubes ; catalytic-oxidation ; metal-clusters ; platinum clusters ; oxygen reduction ; particle-size ; o-xylene ; toluene ; hydrogenation
收录类别	SCI
语种	英语
WOS记录号	WOS:000349275300097
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/145982]
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, State Key Lab Catalysis, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Dalian Univ Technol, Sch Chem Engn, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Shanghai Synchrotron Radiat Facil, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Fan,Jiao, Feng,Pan, Xiulian,et al. Tailoring the Oxidation Activity of Pt Nanoclusters via Encapsulation[J]. acs catalysis,2015,5(2):1381-1385.
APA	Zhang, Fan.,Jiao, Feng.,Pan, Xiulian.,Gao, Kang.,Xiao, Jianping.,...&Bao, Xinhe.(2015).Tailoring the Oxidation Activity of Pt Nanoclusters via Encapsulation.acs catalysis,5(2),1381-1385.
MLA	Zhang, Fan,et al."Tailoring the Oxidation Activity of Pt Nanoclusters via Encapsulation".acs catalysis 5.2(2015):1381-1385.