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	Gold cluster-ceo2 nanostructured hybrid architectures as catalysts for selective oxidation of inert hydrocarbons
	Liu, Yali1; Zhang, Pengfei2; Liu, Junmin1; Wang, Tao1; Huo, Qisheng1; Yang, Li3; Sun, Lei3; Qiao, Zhen-An1; Dai, Sheng2
刊名	Chemistry of materials
	2018-12-11
卷号	30期号:23页码:8579-8586
ISSN号	0897-4756
DOI	10.1021/acs.chemmater.8b03624
通讯作者	Sun, lei(slei@dicp.ac.cn) ; Qiao, zhen-an(qiaozhenan@jlu.edu.cn) ; Dai, sheng(dais@ornl.gov)
英文摘要	Gold clusters with ultrasmall size and special structure are highly attractive for heterogeneous catalysis. however, stabilizing gold clusters under thermal treatment remains a major hurdle on the way toward real-world application. herein, we report an effective approach that stabilizing gold clusters (au-25 and au-144) within mesoporous ceria nanospheres via a two phase overcoating process. high-esolution aberration-corrected stem studies indicated that gold clusters were encapsulated and confined in the intersectional channels of ceria, and the encapsulated clusters were demonstrated to be resistant to sintering under high-emperature thermal treatment. the solvent-free aerobic oxidation of toluene and ethylbenzene was carried out to illustrate the performance of gold clusters in catalysis, and these materials showed excellent catalytic activities and afforded much higher turnover frequencies (up to 5634 and 55 027 turnovers for toluene and ethylbenzene oxidation), which are, as far as we know, much higher than the values of state-of-art catalysts. density functional theory calculations revealed that the encapsulated gold clusters effectively reduced the energy required for the dissociation of o-2 molecules, leading to the excellent catalytic activity.
WOS关键词	LIQUID-PHASE OXIDATION ; CO OXIDATION ; MOLECULAR-OXYGEN ; SIZE ; NANOPARTICLES ; NANOCATALYSIS ; EMERGENCE ; LIGANDS ; SCIENCE ; TOLUENE
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000453489300021
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373008
专题	大连化学物理研究所
通讯作者	Sun, Lei; Qiao, Zhen-An; Dai, Sheng
作者单位	1.Jilin Univ, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Jilin, Peoples R China 2.Oak Ridge Natl Lab, Chem Sci Div, Oak Ridge, TN 37831 USA 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yali,Zhang, Pengfei,Liu, Junmin,et al. Gold cluster-ceo2 nanostructured hybrid architectures as catalysts for selective oxidation of inert hydrocarbons[J]. Chemistry of materials,2018,30(23):8579-8586.
APA	Liu, Yali.,Zhang, Pengfei.,Liu, Junmin.,Wang, Tao.,Huo, Qisheng.,...&Dai, Sheng.(2018).Gold cluster-ceo2 nanostructured hybrid architectures as catalysts for selective oxidation of inert hydrocarbons.Chemistry of materials,30(23),8579-8586.
MLA	Liu, Yali,et al."Gold cluster-ceo2 nanostructured hybrid architectures as catalysts for selective oxidation of inert hydrocarbons".Chemistry of materials 30.23(2018):8579-8586.

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