Ultrathin oxygen-containing graphdiyne wrapping CoP for enhanced electrocatalytic hydrogen generation  

作　　者：Yan Lv Xueyan Wu Hao Li Hongbo Zhang Jiaxin Li Zhiyou Zhou Jixi Guo Dianzeng Jia 

机构地区：[1]State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources,College of Chemistry,Xinjiang University,Urumqi,830017,China [2]State Key Laboratory of Physical Chemistry of Solid Surfaces,Xiamen University,Xiamen 361005,China

出　　处：《Nano Research》2023年第4期5073-5079,共7页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.201972123,U2003307,and 21861037);the National Key Research and Development Program of China(No.2021YFB35006042);the Natural Science Foundation of Xinjiang Uygur Autonomous Region of China(Nos.2021D01C097,2020D01C062,and 2021D01D09);Scientific Research Program of the Higher Education Institution of Xinjiang(XJEDU2021Y005);Open Project of PCOSS(Xiamen University)(2021X20).

摘　　要：Graphdiyne(GDY)is fascinating in the construction of efficient and stable catalysts,but their performance is still somewhat restricted due to GDY’s thicker layers,as well as hydrophobic and relatively chemically inert surfaces.Herein,via oxidationexfoliation-reduction strategy,the self-supported electrode material of CoP nanosheets with ultrathin oxygen-containing GDY wrapping(CoP@RGDYO)for effective HER is constructed.The wrapping of ultrathin oxygen-containing GDY promotes charge transfer,improves the surface property,and enhances the acid and alkali resistance as well as the structural stability of the catalyst.As a result,CoP@RGDYO shows enhanced activity and stability in both acidic and alkaline media.Especially,it exhibits a low overpotential of 86 mV and exceptional stability under a 14000-cycle cyclic voltammetry scanning in alkaline media.This work provides new ideas for the design of GDY hybrid materials and the preparation of high-efficiency catalysts.

关 键 词：graphdiyne chainmail catalyst HYDROPHILICITY stability hydrogen generation 

分 类 号：O64[理学—物理化学]