Single Carbon Vacancy Traps Atomic Platinum for Hydrogen Evolution Catalysis.

Yang, Qin; Liu, Hanxuan; Yuan, Pei; Jia, Yi; Zhuang, Linzhou; Zhang, Hongwei; Yan, Xuecheng; Liu, Guihao; Zhao, Yufei; Liu, Jizi; Wei, Shiqiang; Song, Li; Wu, Qilong; Ge, Bingqing; Zhang, Longzhou; Wang, Kang; Wang, Xin; Chang, Chun-Ran; Yao, Xiangdong

Yang, Qin; Liu, Hanxuan; Yuan, Pei; Jia, Yi; Zhuang, Linzhou; Zhang, Hongwei; Yan, Xuecheng; Liu, Guihao; Zhao, Yufei; Liu, Jizi; Wei, Shiqiang; Song, Li; Wu, Qilong; Ge, Bingqing; Zhang, Longzhou; Wang, Kang; Wang, Xin; Chang, Chun-Ran; Yao, Xiangdong.

Afiliação

Yang Q; College of Chemical Engineering, Fuzhou University, Fuzhou 350002, P.R. China.
Liu H; School of Environment and Science, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
Yuan P; School of Chemical Engineering and Technology, Xi'an Jiao Tong University, Xi'an 710049, P.R. China.
Jia Y; College of Chemical Engineering, Fuzhou University, Fuzhou 350002, P.R. China.
Zhuang L; School of Environment and Science, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
Zhang H; School of Chemical Engineering, East China University of Science and Technology, Shanghai 200000, P.R. China.
Yan X; College of Chemical Engineering, Fuzhou University, Fuzhou 350002, P.R. China.
Liu G; School of Environment and Science, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
Zhao Y; State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P.R. China.
Liu J; State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P.R. China.
Wei S; Hebert Gleiter Institute of Nanoscience, School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu 210094, P.R. China.
Song L; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P.R. China.
Wu Q; National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P.R. China.
Ge B; School of Environment and Science, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
Zhang L; College of Chemical Engineering, Fuzhou University, Fuzhou 350002, P.R. China.
Wang K; School of Environment and Science, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
Wang X; School of Environment and Science, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan, Queensland 4111, Australia.
Chang CR; College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, P.R. China.
Yao X; School of Chemical Engineering and Technology, Xi'an Jiao Tong University, Xi'an 710049, P.R. China.

J Am Chem Soc ; 144(5): 2171-2178, 2022 Feb 09.

Article em En | MEDLINE | ID: mdl-34995077

ABSTRACT

ABSTRACT

The coordinated configuration of atomic platinum (Pt) has always been identified as an active site with high intrinsic activity for hydrogen evolution reaction (HER). Herein, we purposely synthesize single vacancies in a carbon matrix (defective graphene) that can trap atomic Pt to form the Pt-C3 configuration, which gives exceptionally high reactivity for HER in both acidic and alkaline solutions. The intrinsic activity of Pt-C3 site is valued with a turnover frequency (TOF) of 26.41 s-1 and mass activity of 26.05 A g-1 at 100 mV, respectively, which are both nearly 18 times higher than those of commercial 20 wt % Pt/C. It is revealed that the optimal coordination Pt-C3 has a stronger electron-capture ability and lower Gibbs free energy difference (ΔG), resulting in promoting the reduction of adsorbed H+ and the acceleration of H2 desorption, thus exhibiting the extraordinary HER activity. This work provides a new insight on the unique coordinated configuration of dispersive atomic Pt in defective C matrix for superior HER performance.

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Am Chem Soc Ano de publicação: 2022 Tipo de documento: Article