Optimising surface d charge of AuPd nanoalloy catalysts for enhanced catalytic activity

doi:10.1038/s41467-019-09421-5

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Optimising surface d charge of AuPd nanoalloy catalysts for enhanced catalytic activity
	Zhu, XJ ; Guo, QS ; Sun, YF ; Chen, SJ ; Wang, JQ ; Wu, MM ; Fu, WZ ; Tang, YQ ; Duan, XZ ; Chen, D
刊名	NATURE COMMUNICATIONS
	2019
卷号	10 期号:-页码:—
关键词	GOLD-PALLADIUM NANOPARTICLES SELECTIVE OXIDATION ALCOHOL OXIDATION BIMETALLIC CATALYSTS PD ATOM ACTIVATION GLYCEROL CLUSTERS METHANE
ISSN号	2041-1723
DOI	10.1038/s41467-019-09421-5
文献子类	期刊论文
英文摘要	Understanding the catalytic mechanism of bimetallic nanocatalysts remains challenging. Here, we adopt an adsorbate mediated thermal reduction approach to yield monodispersed AuPd catalysts with continuous change of the Pd-Au coordination numbers embedded in a mesoporous carbonaceous matrix. The structure of nanoalloys is well-defined, allowing for a direct determination of the structure-property relationship. The results show that the Pd single atom and dimer are the active sites for the base-free oxidation of primary alcohols. Remarkably, the d-orbital charge on the surface of Pd serves as a descriptor to the adsorbate states and hence the catalytic performance. The maximum d-charge gain occurred in a composition with 33-50 at% Pd corresponds to up to 9 times enhancement in the reaction rate compared to the neat Pd. The findings not only open an avenue towards the rational design of catalysts but also enable the identification of key steps involved in the catalytic reactions.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31745]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China; 2.Norwegian Univ Sci & Technol, Dept Chem Engn, N-7491 Trondheim, Norway 3.East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China; 4.Shanghai Normal Univ, Dept Chem, Shanghai 200234, Peoples R China; 5.Shanghai Normal Univ, Shanghai Key Lab Rare Earth Funct Mat, Key Lab Resource Chem, Minist Educ, Shanghai 200234, Peoples R China;
推荐引用方式 GB/T 7714	Zhu, XJ,Guo, QS,Sun, YF,et al. Optimising surface d charge of AuPd nanoalloy catalysts for enhanced catalytic activity[J]. NATURE COMMUNICATIONS,2019,10(-):—.
APA	Zhu, XJ.,Guo, QS.,Sun, YF.,Chen, SJ.,Wang, JQ.,...&Wan, Y.(2019).Optimising surface d charge of AuPd nanoalloy catalysts for enhanced catalytic activity.NATURE COMMUNICATIONS,10(-),—.
MLA	Zhu, XJ,et al."Optimising surface d charge of AuPd nanoalloy catalysts for enhanced catalytic activity".NATURE COMMUNICATIONS 10.-(2019):—.