Pt nanodendrites with (111) crystalline facet as an efficient,stable and pH-universal catalyst for electrochemical hydrogen production |
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| Institution: | 1. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China;2. Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China;3. Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen 518055, China;4. Center of Material Science and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China;5. Laboratory of Environmental Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China;6. College of Science, Henan University of Technology, Zhengzhou 10463, China;7. College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China;8. Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China;1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China;2. University of Chinese Academy of Sciences, Beijing 100049, China;3. National Advanced School of Engineering of Maroua, University of Maroua, Maroua P.O. Box 46, Cameroon;4. Shanghai Research Institute of Petrochemical Technology, Shanghai 201208, China;1. Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;2. The Affiliated Hospital of Qingdao University, Qingdao 266003, China;1. Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China;2. School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China;1. Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, Hubei University, No. 368 Youyi Avenue, Wuchang, Wuhan 430062, China;2. State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;3. College of Chemistry and Chemical Engineer, Hubei University, Youyi Road 368, Wuchang, Wuhan, Hubei 430062, China |
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| Abstract: | High-performance nanomaterial catalysts for hydrogen evolution reaction via electrochemical water splitting are significant to the development of hydrogen energy. In this work, we report a robust and highly active catalyst fabricated through direct electrochemical deposition of Pt nanodendrites at the surface of activated carbon (Pt NDs). Owing to the large electrochemically active area and the exposed (111) facet of Pt, Pt NDs exhibits outstanding activity towards hydrogen evolution reaction with a low requiring overpotential of 0.027 V at 10 mA/cm2 and Tafel slope of ≈ 22 mV/dec in acidic media. In addition, the hydrogen yield of Pt NDs is 30%–45% larger than that of commercial Pt/C at the same Pt loadings. Moreover, Pt NDs exhibits excellent long-term durability whose hydrogen production efficiency remains unchanged after six-hour hydrogen production, while the efficiency of commercial Pt/C catalyst decayed 9% under the same circumstance. Considering the superiority of catalytic activity and stability, this Pt NDs present great potentiality towards practical hydrogen production application. |
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| Keywords: | Platinum nanodendrites Hydrogen evolution reaction Electrocatalytic activity Long-term durability pH-universal property |
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