Single Carbon Vacancy Traps Atomic Platinum for Hydrogen Evolution Catalysis

• DOI: 10.1021/jacs.1c10814
• Publication Date: 2022-01-07T21:54:31Z
• Authors: Qin Yang; Hanxuan Liu; Pei Yuan; Yi Jia; Linzhou Zhuang; Hongwei Zhang; Xuecheng Yan; Guihao Liu; Yufei Zhao; Jizi Liu; Shiqiang Wei; Li Song; Qilong Wu; Bingqing Ge; Longzhou Zhang; Kang Wang; Xin Wang; Chun-Ran Chang; Xiangdong Yao
• Keywords: Reactivity; Carbon fibers

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 Pt to form the Pt-C3 configuration, which gives exceptionally reactivity HER both acidic and alkaline solutions. is valued turnover frequency (TOF) 26.41 s-1 mass 26.05 A g-1 at 100 mV, respectively, are nearly 18 times higher than those commercial 20 wt % Pt/C. It revealed optimal coordination stronger electron-capture ability lower Gibbs free energy difference (ΔG), resulting promoting reduction adsorbed H+ acceleration H2 desorption, thus exhibiting extraordinary activity. This work provides new insight on unique dispersive defective C superior performance.