Abstract

A highly efficient bi‐functional metal‐free catalyst was prepared by growth of three‐dimensional porous fluorographdiyne networks on carbon cloth (p‐FGDY/CC). Our experiments and density functional theory (DFT) calculations show the 3D p‐FGDY/CC network is highly active and it is a high potential metal‐free catalyst for hydrogen evolution reaction (HER), oxygen evolution reaction (OER), as well as overall water splitting (OWS) under both acidic and alkaline conditions. The experimental and theoretical results show very good consistency, for example, in the HER process, p‐FGDY/CC exhibits small overpotentials of 82 and 92 mV to achieve 10 mA cm‐2 in both acidic and alkaline conditions, respectively. This ensures an even higher selectivity for various O/H intermediate species adsorption/desorption. The essential key promotion accomplishes a tetra‐functional H2O redox performance application within pH‐universal electrochemical conditions.

Chengyu Xing, Yurui Xue,* Yingjie Zhao*, Yuliang Li*, et al. Fluorographdiyne: A Metal‐free Catalyst for Applications in Water Reduction and Oxidation. Angew. Chem. Int. Ed., 2019

DOI: 10.1002/anie.201905729

https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201905729