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Fluorographdiyne: A Metal‐Free Catalyst for Applications in Water Reduction and Oxidation
Author(s) -
Xing Chengyu,
Xue Yurui,
Huang Bolong,
Yu Huidi,
Hui Lan,
Fang Yan,
Liu Yuxin,
Zhao Yingjie,
Li Zhibo,
Li Yuliang
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201905729
Subject(s) - bifunctional , catalysis , redox , chemistry , oxygen evolution , electrochemistry , inorganic chemistry , water splitting , desorption , density functional theory , adsorption , metal , electrocatalyst , chemical engineering , computational chemistry , organic chemistry , electrode , photocatalysis , engineering
A highly efficient bifunctional 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 the hydrogen evolution reaction (HER) and 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 under alkaline and acidic conditions, respectively. This ensures an even higher selectivity for the adsorption/desorption of various O/H intermediate species. The essential key promotion accomplishes a bifunctional H 2 O redox performance application under pH‐universal electrochemical conditions.