Nanocomposite: Keggin-type Co_(4)-polyoxometalate@cobaltporphyrin linked graphdiyne for hydrogen evolution in seawater  

作　　者：Jiejie Ping Danyang He Fei Wang Nan Wang Yi-cheng Fu Zihao Xing Zhiyu Jia Guo-Yu Yang 

机构地区：[1]Key Laboratory of Cluster Science,Ministry of Education,School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China [2]Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education,Facluty of Chmeistry Northeast Normal University,Changchun 130024,China [3]Peking University Third Hospital,Beijing 100190,China

出　　处：《Nano Research》2024年第3期1281-1287,共7页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.21831001,21801014,22171024,and 22202037);the Fundamental Research Funds for the Central Universities(No.2412023QD019).

摘　　要：Polyoxometalate-based nanocomposites with electrocatalytic activity have been applied in hydrogen evolution reactions(HER).Seawater as the main water resource on the earth should be developed as the water electrolysis to prepare high-purity hydrogen.In this paper,we used two synthesis strategies to prepare the nanocomposite Co_(4)-POM@Co-PGDY(Co_(4)-POM:the Kegging-type microcrystals of K_(10)[Co_(4)(PW_(9)O_(3)4)2]and Co-PGDY:cobalt-porphyrin linked graphdiyne)with excellent activity for HER.Co-PGDY as the porous material is applied not only as the protection of microcrystals towards the metal ion in seawater but also as the co-electrocatalyst of Co_(4)-POM.Co_(4)-POM@Co-PGDY exhibits excellent HER performance in seawater electrolytes with low overpotential and high stability at high density.Moreover,we have observed a key H_(3)O+intermediate emergence on the surface of nanocomposite during hydrogen evolution process in seawater by Raman synchrotron radiation-based Fourier transform infrared(SR-FTIR).The results in this paper provide an effective strategy for preparing polyoxometalate-based electrocatalysts with high-performance toward hydrogen evolution reaction.

关 键 词：POLYOXOMETALATE graphdiyne seawater hydrogen evolution reaction 

分 类 号：TB33[一般工业技术—材料科学与工程]