High valence state of Ni and Mo synergism in NiS_(2);MoS_(2)hetero-nanorods catalyst with layered surface structure for urea electrocatalysis

作     者：Shuli Wang Linyu Zhao Jiaxin Li Xinlong Tian Xiang Wu Ligang Feng Shuli Wang;Linyu Zhao;Jiaxin Li;Xinlong Tian;Xiang Wu;Ligang Feng

作者机构：School of Chemistry and Chemical EngineeringYangzhou UniversityYangzhou 225002JiangsuChina State Key Laboratory of Marine Resource Utilization in South China SeaHainan Provincial Key Lab of Fine ChemistrySchool of Chemical Engineering and TechnologyHainan UniversityHaikou 570228HainanChina School of Materials Science and EngineeringShenyang University of TechnologyShenyang 110870LiaoningChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2022年第31卷第3期

页      面：483-492,I0013页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(21972124,21603041) the Priority Academic Program Development of Jiangsu Higher Education Institution the support of the Six Talent Peaks Project of Jiangsu Province(XCL-070-2018) 

主　　题：Hetero-nanorods High valence state Urea oxidation NiS_(2) MoS_(2) 

摘      要：High valence state species are significant in the energy-relevant electrochemical oxidation ***,the high active state of Ni^(3+)formation induced by Mo^(6+)and their efficient synergism in NiS_(2)-MoS_(2)hetero-nanorods powder catalyst with the rough layered structure are demonstrated,as proof of concept,for the urea-assisted water *** catalyst can be derived from the sulfidation of NiMoO_(4) nanorods that can realize individual metal sulfides sufficiently mixing at a domain size in the nanoscale which creates lots of active sites and *** high valence state of Mo^(6+)and Ni^(3+)formation and increased conductive phase of 1 T MoS_(2)in the hetero-nanorods compared to the counterpart pure phases are revealed by spectral study and microscopic analysis;high electrochemical surface area and active site exposure are found due to the nano-interface formation and layered rough nanosheets over the surface of *** show much higher catalytic performance than their pure phases for urea oxidation,including high catalytic activity,stability,charge transfer ability and catalytic kinetics resulting from more active Ni^(3+)species formation and electronic synergism of high valence *** of 1 T MoS_(2)to Mo^(6+)and increased amount of Mo^(6+)and Ni^(3+)after stability test indicate their involvement and synergism for the catalysis *** current work offers a novel understanding of the synergistic effect based on the high valence state synergism for heterogeneous catalysts in electrocatalysis.