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Preparation of Au@Pd Core-Shell Nanorods with fcc-2H-fcc Heterophase for Highly Efficient Electrocatalytic Alcohol Oxidation

文献类型：期刊论文

作者Zhou, Xichen11; Ma, Yangbo11; Ge, Yiyao11; Zhu, Shangqian10; Cui, Yu9; Chen, Bo11; Liao, Lingwen8,11; Yun, Qinbai11; He, Zhen7,11; Long, Huiwu7,11
刊名JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
出版日期2021-12-21
ISSN号0002-7863
DOI10.1021/jacs.1c11313
通讯作者Ling, Chongyi(lingchy@seu.edu.cn) ; Shao, Minhua(kemshao@ust.hk) ; Fan, Zhanxi(zhanxi.fan@cityu.edu.hk) ; Zhang, Hua(hua.zhang@cityu.edu.hk)
英文摘要Controlled construction of bimetallic nanostructures with a well-defined heterophase is of great significance for developing highly efficient nanocatalysts and investigating the structure-dependent catalytic performance. Here, a wet-chemical synthesis method is used to prepare Au@Pd core-shell nanorods with a unique fcc-2H-fcc heterophase (fcc: face-centered cubic; 2H: hexagonal close-packed with a stacking sequence of "AB"). The obtained fcc-2H-fcc heterophase Au@Pd core-shell nanorods exhibit superior electrocatalytic ethanol oxidation performance with a mass activity as high as 6.82 A mg(pd)(-1), which is 2.44, 6.96, and 6.43 times those of 2H-Pd nanoparticles, fcc-Pd nanoparticles, and commercial Pd/C, respectively. The operando infrared reflection absorption spectroscopy reveals a C2 pathway with fast reaction s 1.48 kinetics for the ethanol oxidation on the prepared heterophase Au@Pd nanorods. Our experimental results together with density functional theory calculations indicate that the enhanced performance of heterophase Au@Pd nanorods can be attributed to the unconventional 2H phase, the 2H/fcc phase boundary, and the lattice expansion of the Pd shell. Moreover, the heterophase Au@Pd nanorods can also serve as an efficient catalyst for the electrochemical oxidation of methanol, ethylene glycol, and glycerol. Our work in the area of phase engineering of nanomaterials (PENS) opens the way for developing high-performance electrocatalysts toward future practical applications.
WOS关键词SELECTIVE EPITAXIAL-GROWTH ; CRYSTAL PHASE ; ETHANOL ; NANOPARTICLES ; NANOCRYSTALS ; PALLADIUM ; CATALYSTS ; ELECTRODE ; ELECTROOXIDATION ; NANOSTRUCTURES
资助项目City University of Hong Kong[9610478] ; City University of Hong Kong[9680314] ; City University of Hong Kong[7020013] ; City University of Hong Kong[1886921] ; City University of Hong Kong[9610480] ; City University of Hong Kong[7005512] ; City University of Hong Kong[9680301] ; City University of Hong Kong[9380100] ; City University of Hong Kong[7200651] ; ITC via the Hong Kong Branch of the National Precious Metals Material Engineering Research Center (NPMM) in City University of Hong Kong[22005258] ; ITC via the Hong Kong Branch of the National Precious Metals Material Engineering Research Center (NPMM) in City University of Hong Kong[22175148] ; National Natural Science Foundation of China ; Hong Kong Scholars Program[XJ2019008] ; Research Grant Council[22075291] ; Hong Kong Special Administrative Region, Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[16308420] ; Hong Kong Special Administrative Region, Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[16310419] ; Hong Kong Innovation and Technology Commission[SMSEGL20SC01] ; Research Grants Council of the Hong Kong Special Administrative Region[ITC-CNERC14EG03] ; [HKUST PDFS2021-6S08]
WOS研究方向Chemistry
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000736005200001
资助机构City University of Hong Kong ; ITC via the Hong Kong Branch of the National Precious Metals Material Engineering Research Center (NPMM) in City University of Hong Kong ; National Natural Science Foundation of China ; Hong Kong Scholars Program ; Research Grant Council ; Hong Kong Special Administrative Region, Hong Kong Branch of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Hong Kong Innovation and Technology Commission ; Research Grants Council of the Hong Kong Special Administrative Region
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/127153]  
专题中国科学院合肥物质科学研究院
通讯作者Ling, Chongyi; Shao, Minhua; Fan, Zhanxi; Zhang, Hua
作者单位1.Hong Kong Univ Sci & Technol, Chinese Natl Engn Res Ctr Control & Treatment Hea, Hong Kong, Peoples R China
2.Hong Kong Univ Sci & Technol, Energy Inst, Southern Marine Sci & Engn Guangdong Lab, Hong Kong Branch, Hong Kong, Peoples R China
3.City Univ Hong Kong, Shenzhen Res Inst, Shenzhen 518057, Peoples R China
4.City Univ Hong Kong, Ctr Super Diamond & Adv Films COSDAF, Hong Kong, Peoples R China
5.Chinese Univ Hong Kong, Dept Chem, Hong Kong, Peoples R China
6.Chinese Acad Sci, Mat Interfaces Ctr, Shenzhen Inst Adv Technol, Shenzhen 518057, Peoples R China
7.City Univ Hong Kong, Natl Precious Met Mat Engn Res Ctr NPMM, Hong Kong Branch, Hong Kong, Peoples R China
8.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Peoples R China
9.Southeast Univ, Sch Phys, Nanjing 211189, Peoples R China
10.Hong Kong Univ Sci & Technol, Dept Chem & Biol Engn, Hong Kong, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Xichen,Ma, Yangbo,Ge, Yiyao,et al. Preparation of Au@Pd Core-Shell Nanorods with fcc-2H-fcc Heterophase for Highly Efficient Electrocatalytic Alcohol Oxidation[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2021.
APA Zhou, Xichen.,Ma, Yangbo.,Ge, Yiyao.,Zhu, Shangqian.,Cui, Yu.,...&Zhang, Hua.(2021).Preparation of Au@Pd Core-Shell Nanorods with fcc-2H-fcc Heterophase for Highly Efficient Electrocatalytic Alcohol Oxidation.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY.
MLA Zhou, Xichen,et al."Preparation of Au@Pd Core-Shell Nanorods with fcc-2H-fcc Heterophase for Highly Efficient Electrocatalytic Alcohol Oxidation".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021).

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来源：合肥物质科学研究院

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