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Chen W, Zhu X, Wei W, Chen H, Dong T, Wang R, Liu M, Ken Ostrikov K, Peng P, Zang SQ. Neighboring Platinum Atomic Sites Activate Platinum-Cobalt Nanoclusters as High-Performance ORR/OER/HER Electrocatalysts. Small 2023; 19:e2304294. [PMID: 37490529 DOI: 10.1002/smll.202304294] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/12/2023] [Indexed: 07/27/2023]
Abstract
The rational design of efficient and multifunctional electrocatalysts for energy conversion devices is one of the major challenges for clean and renewable energy transition. Herein, the local electronic structure of cobalt-platinum nanoclusters is regulated by adjacent platinum atomic site encapsulated in N-doped hollow carbon nanotubes (PtSA -PtCo NCs/N-CNTs) by pyrolysis of melamine-orientation-induced zeolite imidazole metal-organic frameworks (ZIF-67) with thimbleful platinum doping. The introduction of melamine can reactivate adjacent carbon atoms and initiate the oriented growth of nitrogen-doped carbon nanotubes. The systematic analysis suggests the significant role of thimbleful neighboring low-coordinated Pt─N2 in altering the localized electronic structure of PtCo nanoclusters. The optimized PtSA -PtCo NCs/N-CNTs-900 exhibit excellent hydrogen evolution reaction (HER)/oxygen evolution reaction (OER)/oxygen reduction reaction (ORR)/ catalytic performance reaching the current density of 10 mA cm-2 in 1 m KOH under the low 47 (HER) and 252 mV (OER) overpotentials, and a high half-wave potential of 0.86 and 0.89 V (ORR) in 0.1 m KOH and 0.1 m HClO4 , respectively. Remarkably, the PtSA -PtCo NC/N-CNT-900 also presents outstanding catalytic performances toward water splitting and rechargeable Zn-air batteries. The theoretical calculations reveal that optimal regulation of the electronic structure of PtCo nanoclusters by thimbleful neighboring Pt atomic reduces the reaction energy barrier in electrochemical process, facilitating the ORR/OER/HER performance.
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Affiliation(s)
- Wenxia Chen
- School of Chemistry and Chemical Engineering, Henan D&A Engineering Center of Advanced Battery Materials, Shangqiu Normal University, Shangqiu, Henan, 476000, China
| | - Xingwang Zhu
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - Wei Wei
- School of Chemistry and Chemical Engineering, Henan D&A Engineering Center of Advanced Battery Materials, Shangqiu Normal University, Shangqiu, Henan, 476000, China
| | - Haoran Chen
- School of Chemistry and Chemical Engineering, Henan D&A Engineering Center of Advanced Battery Materials, Shangqiu Normal University, Shangqiu, Henan, 476000, China
| | - Tianhao Dong
- School of Chemistry and Chemical Engineering, Henan D&A Engineering Center of Advanced Battery Materials, Shangqiu Normal University, Shangqiu, Henan, 476000, China
| | - Rui Wang
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Meng Liu
- School of Chemistry and Chemical Engineering, Henan D&A Engineering Center of Advanced Battery Materials, Shangqiu Normal University, Shangqiu, Henan, 476000, China
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology (QUT), Brisbane, QLD, 4000, Australia
| | - Peng Peng
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China
| | - Shuang-Quan Zang
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan, 450001, China
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