Microwave-assisted hydrothermal synthesis of NiMoO_(4) nanorods for high-performance urea electrooxidation  

作　　者：Shuli Wang Jiayun Zhu Xiang Wu Ligang Feng 

机构地区：[1]School of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225002,China [2]School of Materials Science and Engineering,Shenyang University of Technology,Shenyang 110870,China

出　　处：《Chinese Chemical Letters》2022年第2期1105-1109,共5页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos.21972124,21603041);funded by the Priority Academic Program Development of Jiangsu Higher Education Institution;support received at the Testing Center of Yangzhou University。

摘　　要：A large surface area with high active site exposure is desired for the nano-scaled electrocatalysts fabrica-tion.Herein,taking NiMoO_(4)nanorods for example,we demonstrated the advantages of the microwave-assisted hydrothermal synthesis method compared to the traditional hydrothermal approaches.Both monoclinic structured NiMoO_(4)in the nanorods morphology are found for these samples but it is more time-saving and efficient in the Ni-Mo synergism for the catalyst obtained by microwave-assisted hydrothermal syntheses method.When evaluated for urea oxidation,the current density can reach 130.79 mA/cm^(2)at 1.54 V,about 2.4 times higher than that of the counterpart catalyst(54.08 mA/cm^(2)).Moreover,largely improved catalytic stability,catalytic kinetics and rapid charge transfer ability are found on the catalyst obtained by the microwave-assisted approach.The high catalytic performance can be at-tributed to the high surface area and active site exposure of NiMoO_(4)nanorods formed by microwave irradiation.Considering the less time,facile synthesis condition and efficient components synergism,the microwave-assisted hydrothermal synthesis method might work better for the nanostructure electrocata-lysts fabrication.

关 键 词：Urea electro-oxidation NiMoO_(4) Hydrothermal synthesis Microwave irradiation Nanorod 

分 类 号：O643.36[理学—物理化学] TB383.1[理学—化学]