Ni(OH)_(2) nanoparticles encapsulated in conductive nanowire array for high-performance alkaline seawater oxidation  

作　　者：Longcheng Zhang Jiaqian Wang Pengyu Liu Jie Liang Yongsong Luo Guanwei Cui Bo Tang Qian Liu Xuedong Yan Haigang Hao Meiling Liu Rui Gao Xuping Sun 

机构地区：[1]College of Chemistry,Chemical Engineering and Materials Science,Shandong Normal University,Jinan 250014,China [2]Institute of Fundamental and Frontier Sciences,University of Electronic Science and Technology of China,Chengdu 610054,China [3]College of Chemistry and Chemical Engineering,Inner Mongolia University,Hohhot 010021,China [4]Institute for Advanced Study,Chengdu University,Chengdu 610106,China [5]Ningbo Veken Battery Company,5th Gangxi Avenue,West Bonded Zone,Ningbo College of Chemical Engineering,Ningbo Polytechnic,Ningbo 315800,China [6]Key Laboratory of Chemical Biology&Traditional Chinese Medicine Research(Ministry of Education,China),College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China

出　　处：《Nano Research》2022年第7期6084-6090,共7页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.22072015);the Opening Fund of Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research(Hunan Normal University);Ministry of Education(2020-02).

摘　　要：Design and development of high-efficiency and durable oxygen evolution reaction(OER)electrocatalysts is crucial for hydrogen production from seawater splitting.Herein,we report the in situ electrochemical conversion of a nanoarray of Ni(TCNQ)2(TCNQ=tetracyanoquinodimethane)on graphite paper into Ni(OH)_(2) nanoparticles confined in a conductive TCNQ nanoarray(Ni(OH)_(2)-TCNQ/GP)by anode oxidation.The Ni(OH)_(2)-TCNQ/GP exhibits high OER performance and demands overpotentials of 340 and 382 mV to deliver 100 mA·cm^(−2) in alkaline freshwater and alkaline seawater,respectively.Meanwhile,the Ni(OH)_(2)-TCNQ/GP also demonstrates steady long-term electrochemical durability for at least 80 h under alkaline seawater.

关 键 词：Ni(OH)_(2)nanoparticles tetracyanoquinodimethane(TCNQ)nanoarray electrocatalysis seawater splitting 

分 类 号：O64[理学—物理化学]