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Gao L, Wang Y, Li H, Li Q, Ta N, Zhuang L, Fu Q, Bao X. A nickel nanocatalyst within a h-BN shell for enhanced hydrogen oxidation reactions. Chem Sci 2017; 8:5728-5734. [PMID: 28989613 PMCID: PMC5621155 DOI: 10.1039/c7sc01615h] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 06/09/2017] [Indexed: 12/04/2022] Open
Abstract
The confinement effect of h-BN shells helps to maintain active metallic Ni cores and strengthen the HOR processes occurring at h-BN/Ni interfaces.
The development of low-cost and high-performance electrocatalysts remains a challenge for the hydrogen oxidation reaction (HOR) in alkaline membrane fuel cells. Here, we have reported novel Ni@h-BN core–shell nanocatalysts consisting of nickel nanoparticles encapsulated in few-layer h-BN shells. The Ni@h-BN catalysts exhibit an improved HOR performance compared with the bare Ni nanoparticles. In situ characterization experiments and density functional theory calculations indicate that the interactions of the O, H, and OH species with the Ni surface under the h-BN shell are weakened, which helps to maintain the active metallic Ni phase both in air and in the electrolyte and strengthen the HOR processes occurring at the h-BN/Ni interfaces. These results suggest a new route for designing high-performance non-noble metal electrocatalysts with encapsulating two-dimensional material overlayers for HOR reactions.
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Affiliation(s)
- Lijun Gao
- State Key Laboratory of Catalysis , iChEM , Dalian Institute of Chemical Physics , The Chinese Academy of Sciences , Dalian 116023 , P. R. China . .,Department of Chemical Physics , University of Science and Technology of China , Hefei 230026 , P. R. China
| | - Ying Wang
- College of Chemistry and Molecular Sciences , Hubei Key Lab of Electrochemical Power Sources , Institute for Advanced Studies , Wuhan University , Wuhan 430072 , P. R. China .
| | - Haobo Li
- State Key Laboratory of Catalysis , iChEM , Dalian Institute of Chemical Physics , The Chinese Academy of Sciences , Dalian 116023 , P. R. China .
| | - Qihao Li
- College of Chemistry and Molecular Sciences , Hubei Key Lab of Electrochemical Power Sources , Institute for Advanced Studies , Wuhan University , Wuhan 430072 , P. R. China .
| | - Na Ta
- State Key Laboratory of Catalysis , iChEM , Dalian Institute of Chemical Physics , The Chinese Academy of Sciences , Dalian 116023 , P. R. China .
| | - Lin Zhuang
- College of Chemistry and Molecular Sciences , Hubei Key Lab of Electrochemical Power Sources , Institute for Advanced Studies , Wuhan University , Wuhan 430072 , P. R. China .
| | - Qiang Fu
- State Key Laboratory of Catalysis , iChEM , Dalian Institute of Chemical Physics , The Chinese Academy of Sciences , Dalian 116023 , P. R. China .
| | - Xinhe Bao
- State Key Laboratory of Catalysis , iChEM , Dalian Institute of Chemical Physics , The Chinese Academy of Sciences , Dalian 116023 , P. R. China .
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Gao L, Fu Q, Wei M, Zhu Y, Liu Q, Crumlin E, Liu Z, Bao X. Enhanced Nickel-Catalyzed Methanation Confined under Hexagonal Boron Nitride Shells. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02188] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lijun Gao
- Department
of Chemical Physics, University of Science and Technology of China, Hefei 230026, People’s Republic of China
- State
Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Qiang Fu
- State
Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Mingming Wei
- State
Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Yifeng Zhu
- State
Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
| | - Qiang Liu
- State
Key Laboratory of Functional Materials for Informatics, Shanghai Institute
of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China
- School
of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, People’s Republic of China
| | - Ethan Crumlin
- Advanced
Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
| | - Zhi Liu
- State
Key Laboratory of Functional Materials for Informatics, Shanghai Institute
of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China
- School
of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, People’s Republic of China
| | - Xinhe Bao
- State
Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People’s Republic of China
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Gómez-Aleixandre C, Essafti A, Fernández M, Fierro JLG, Albella JM. Influence of Diborane Flow Rate on the Structure and Stability of CVD Boron Nitride Films. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp951200d] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C. Gómez-Aleixandre
- Instituto Cierncia de Materiales, CSIC, Universidad Autónoma C-12, Cantoblanco, 28049 Madrid, Spain, and Instituto de Catálisis y Petroleoquímica, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - A. Essafti
- Instituto Cierncia de Materiales, CSIC, Universidad Autónoma C-12, Cantoblanco, 28049 Madrid, Spain, and Instituto de Catálisis y Petroleoquímica, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - M. Fernández
- Instituto Cierncia de Materiales, CSIC, Universidad Autónoma C-12, Cantoblanco, 28049 Madrid, Spain, and Instituto de Catálisis y Petroleoquímica, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - J. L. G. Fierro
- Instituto Cierncia de Materiales, CSIC, Universidad Autónoma C-12, Cantoblanco, 28049 Madrid, Spain, and Instituto de Catálisis y Petroleoquímica, CSIC, Cantoblanco, 28049 Madrid, Spain
| | - J. M. Albella
- Instituto Cierncia de Materiales, CSIC, Universidad Autónoma C-12, Cantoblanco, 28049 Madrid, Spain, and Instituto de Catálisis y Petroleoquímica, CSIC, Cantoblanco, 28049 Madrid, Spain
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