Heterostructured Pt-Ni_(3)Mo_(3)N formed via ammonia-containing polyoxometalates for highly efficient electrocatalytic hydrogen evolution in acid medium  

作　　者：Bianqing Ren Xue Gong Jing Cao Dezheng Zhang Zizhun Wang Ping Song Ce Han Weilin Xu 

机构地区：[1]State Key Laboratory of Electroanalytical Chemistry,Jilin Province Key Laboratory of Low Carbon Chemical Power,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,Jilin,China [2]School of Applied Chemistry and Engineering,University of Science and Technology of China,Hefei 230026,Anhui,China [3]Key Laboratory of Automobile Materials MOE,School of Materials Science&Engineering,Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials,Electron Microscopy Center,and International Center of Future Science,Jilin University,Changchun 130012,Jilin,China

出　　处：《Journal of Energy Chemistry》2024年第5期698-704,共7页能源化学（英文版）

基　　金：the financial support from the Key Research and Development Program sponsored by the Ministry of Science and Technology(MOST)(2022YFB4002000,2022YFA1203400);the National Natural Science Foundation of China(22102172,22072145,22372155,22005294,21925205,21721003)。

摘　　要：Constructing heterostructured nanohybrid is considered as a prominent route to fabricate alternative electrocatalysts to commercial Pt/C for hydrogen evolution reaction(HER).In this work,(NH_(4))_(4)[NiH_(6)Mo_(6)O_(4)]·5H_(2)O polyoxometalates(NiMo_(6))are adopted as the cluster precursors for simple fabrication of heterostructured Pt-Ni_(3)Mo_(3)N nanohybrids supported by carbon black(Pt-Ni_(3)Mo_(3)N/C)without using additional N sources.The improved porosity and enhanced electronic interaction of Pt-Ni_(3)Mo_(3)N/C should be attributed to the integration of Pt with NiMo_(6),which favors the mass transport,promotes the formation of exposed catalytic sites,and benefits the regulation of intrinsic activity.Thus,the as-obtained Pt-Ni_(3)Mo_(3)N/C exhibits impressive and durable HER performance as indicated by the low overpotential of 13.7 mV at the current density of 10 mA cm^(-2) and the stable overpotential during continuous working at 100 mA cm^(-2) for 100 h.This work provides significant insights for the synthesis of new highly active heterostructured electrocatalysts for renewable energy devices.

关 键 词：POLYOXOMETALATES Cluster precursors Heterostructured nanohybrids Hydrogen evolution reaction ELECTROCATALYSIS 

分 类 号：TQ116.2[化学工程—无机化工] TQ426