NiMoO_(4)形貌可控调变及对Ni-MoS_(2)电催化水制氢影响研究  

Controlled Morphology Modulation of NiMoO_(4) and its Effect on the Performance of Ni-MoS_(2) in Electrochemical Hydrogen Evolution

作　　者：黄金午 白亮 王莉 曹兢 HUANG Jin-wu;BAI Liang;WANG Li;CAO Jing(Department of Chemistry and Chemical Engineering,Hunan Institute of Science and Technology,Yueyang 414006,China)

机构地区：[1]湖南理工学院化学化工学院,湖南岳阳414006

出　　处：《精细化工中间体》2023年第2期58-63,共6页Fine Chemical Intermediates

基　　金：湖南省大学生创新训练项目(S202210543036)。

摘　　要：采用水热法,制备了Ni Mo O_(4)纳米棒和纳米球前体,并考察了前体形貌对硫化态Ni-Mo S_(2)催化剂电催化分解水制氢性能的影响。结果表明,使用Ni Mo O_(4)纳米球前体所得Ni-Mo S_(2)催化剂在电流密度为10 m A/cm~2的过电位为217 m V,比使用Ni Mo O_(4)纳米棒前体所得Ni-Mo S_(2)催化剂的过电位低60 m V。表征结果表明,Ni Mo O_(4)纳米球前体硫化所得的Ni-Mo S_(2)催化剂具有更加规整的形貌和更高的硫化程度,从而具有更多的四价钼活性位点。The Ni Mo O_(4) nanorod and nanosphere were prepared by hydrothermal method as precursors.Besides,the effect of morphology of the precursors on the performance of Ni-Mo S_(2) in electrocatalytic hydrogen evolution was investigated.The results show that the overpotential of Ni-Mo S_(2) catalyst with Ni Mo O_(4) nanosphere as precursor is 217 m V at a current density of 10 m A/cm^(2),which is 60 m V lower than that with Ni Mo O_(4) nanorod as precursor.The characterization results showed that the Ni-Mo S_(2) catalyst obtained from Ni Mo O_(4) nanosphere precursor had more regular morphology and higher sulfidation degree,thus exposing more active molybdenum(IV) sites.

关 键 词：电催化析氢 二硫化钼 镍掺杂 形貌可控 

分 类 号：O643[理学—物理化学]