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Few-Atom Pt Ensembles Enable Efficient Catalytic Cyclohexane Dehydrogenation for Hydrogen Production

文献类型：期刊论文

作者Deng, Yuchen2; Guo, Yu2; Jia, Zhimin3,4; Liu, Jin-Cheng5,6; Guo, Jinqiu7,8; Cai, Xiangbin9,10; Dong, Chunyang2; Wang, Meng2; Li, Chengyu2; Diao, Jiangyong4
刊名JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
出版日期2022-03-02
卷号144期号:8页码:3535-3542
ISSN号0002-7863
DOI10.1021/jacs.1c12261
通讯作者Liu, Hongyang(liuhy@imr.ac.cn) ; Li, Jun(junli@mail.tsinghua.edu.cn) ; Ma, Ding(dma@pku.edu.cn)
英文摘要Identification of catalytic active sites is pivotal in the design of highly effective heterogeneous metal catalysts, especially for structure-sensitive reactions. Downsizing the dimension of the metal species on the catalyst increases the dispersion, which is maximized when the metal exists as single atoms, namely, single-atom catalysts (SACs). SACs have been reported to be efficient for various catalytic reactions. We show here that the Pt SACs, although with the highest metal atom utilization efficiency, are totally inactive in the cyclohexane (C6H12) dehydrogenation reaction, an important reaction that could enable efficient hydrogen transportation. Instead, catalysts enriched with fully exposed few-atom Pt ensembles, with a Pt-Pt coordination number of around 2, achieve the optimal catalytic performance. The superior performance of a fully exposed few-atom ensemble catalyst is attributed to its high d-band center, multiple neighboring metal sites, and weak binding of the product.
WOS研究方向Chemistry
语种英语
出版者AMER CHEMICAL SOC
WOS记录号WOS:000773646200025
源URL[http://ir.imr.ac.cn/handle/321006/173074]  
专题金属研究所_中国科学院金属研究所
通讯作者Liu, Hongyang; Li, Jun; Ma, Ding
作者单位1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China
2.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
5.Tsinghua Univ, Dept Chem, Minist Educ, Beijing 100084, Peoples R China
6.Tsinghua Univ, Key Lab Organ Optoelect & Mol Engn, Minist Educ, Beijing 100084, Peoples R China
7.Nankai Univ, Sch Mat Sci & Engn, Tianjin Key Lab Rare Earth Mat & Applicat, Tianjin 300350, Peoples R China
8.Nankai Univ, Natl Inst Adv Mat, Tianjin 300350, Peoples R China
9.Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
10.Hong Kong Univ Sci & Technol, Ctr Quantum Mat, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
推荐引用方式
GB/T 7714		 Deng, Yuchen,Guo, Yu,Jia, Zhimin,et al. Few-Atom Pt Ensembles Enable Efficient Catalytic Cyclohexane Dehydrogenation for Hydrogen Production[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2022,144(8):3535-3542.
APA Deng, Yuchen.,Guo, Yu.,Jia, Zhimin.,Liu, Jin-Cheng.,Guo, Jinqiu.,...&Ma, Ding.(2022).Few-Atom Pt Ensembles Enable Efficient Catalytic Cyclohexane Dehydrogenation for Hydrogen Production.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,144(8),3535-3542.
MLA Deng, Yuchen,et al."Few-Atom Pt Ensembles Enable Efficient Catalytic Cyclohexane Dehydrogenation for Hydrogen Production".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 144.8(2022):3535-3542.

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来源：金属研究所

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