Abstract
Atomic catalysts(ACs)have been considered as promising catalysts for efficient hydrogen production through water splitting.Herein,we report an AC with single Mn atoms highly dispersed on the surface of graphdiyne-coated copper hydroxide nanowire arrays(Mn-GDY/Cu(OH)x NWs).By anchoring Mn atoms on GDY,the specific surface area,the number of active sites,and the stability of catalyst are greatly improved.Detailed characteri-zations reveal that the high hydrogen and oxygen evolution reaction(HER/OER)catalytic activity of the catalyst is induced by strong incomplete charge transfer effect between the metal atoms and GDY.These advantages enable the electrocatalysts to drive a current density of 10 mA cm-2 at low overpotentials of 188 and 130 mV for OER and HER,respectively,together with excellent long-term stability.Remarkably,the alkaline electrolyzer using Mn-GDY/Cu(OH)x as both cathode and anode electrodes can reach 10 mA cm-2 only at a much low cell voltage of 1.50 V.
基金项目
Fundamental Research Center of Nano Toxicology Chemistry supported through the National Natural Science Foundation of China(22388101)
国家重点研发计划(2022YFA1204500)
国家重点研发计划(2022YFA1204501)
国家重点研发计划(2022YFA1204503)
国家重点研发计划(2018YFA0703501)
国家自然科学基金(22102085)
中国科学院重点项目(XDPB13)
山东省自然科学基金(ZR2021JQ07)
山东省自然科学基金(ZR2020ZD38)
Taishan Scholars Youth Expert Program of Shandong Province(tsqn201909050)
NETL
NSTL
万方数据