Yurui Xue, Jiaofu Li, Zheng Xue, Yongjun Li, Huibiao Liu, Dan Li, Wensheng Yang,*and Yuliang Li*

Abstract: We have used a scalable and inexpensive method to prepare a catalyst comprising graphdiyne nanosheetsupported cobalt nanoparticles wrapped by N-doped carbon (CoNC/GD); this unprecedentedly durable electrocatalyst mediated the hydrogen evolution reaction (HER) with highly catalytic activity over all values of pH. The durability of the CoNC/GD structure was evidenced by the catalytic performance being preserved over 36 000, 38 000, and 9000 cycles under basic, acidic, and neutral conditions, respectively behavior superior to that of commercial Pt/C (10 wt %) under respective conditions. Such long-term durability has rarely been reported previously for HER catalysts. In addition, this electrode displayed excellent catalytic activity because the improved physical/chemical properties facilitated electron transfer in the composite. The combination of high durability and high activity at all values of pH for this nonprecious metal catalyst suggests great suitability for practical water splitting.

Keywords: graphdiyne, diacetylenic carbon allotrope, two-dimensional structure, extraordinarily durable, electrocatalyst, hydrogen production

文章链接：acsami.6b12655.pdf