Mo/Ni_(3)S_(2)@2D NiFe-NF的合成及其用于高效电催化析氧研究  

Synthesis of Mo/Ni_(3)S_(2)@2D NiFe-NF and its application in high efficiency electrocatalytic oxygen evolution

作　　者：高瑜 张斯曈 赵晓月 杜星希 宋悦 GAO Yu;ZHANG Si-tong;ZHAO Xiao-yue;DU Xing-xi;SONG Yue(Department of Physics and Electronic Information Engineering,Lyliang University,Lvliang 033001,China;School of Environment and Safety Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]吕梁学院物理与电子信息工程系,山西吕梁033001 [2]中北大学环境与安全工程学院,山西太原030051

出　　处：《现代化工》2025年第2期205-208,215,共5页Modern Chemical Industry

摘　　要：以泡沫镍为基底,成功地将二维镍铁双层氢氧化物负载并原位生长Mo/Ni_(3)S_(2)纳米片,形成了具有三维核桃状结构的Mo/Ni_(3)S_(2)@2D NiFe-NF纳米阵列,通过电化学工作站对其电化学性能进行测试。结果表明,与Ni_(3)S_(2)和2D NiFe相比,三维核桃状结构的Mo/Ni_(3)S_(2)@2D NiFe-NF纳米阵列提供了更稳定的结构,同时Mo/Ni_(3)S_(2)与2D NiFe产生协同效应降低了电化学阻抗,提高了电子转运速率,提供了丰富的活性位点,加快了氧气释放。在电流密度为40 mA/cm2时,过电势仅为168 mV;在电流密度为11.6 mA/cm2的条件下,电流密度维持超过50 h无明显的下降。2D nickel-iron hydroxide is loaded on a nickel foam substrate,and Mo/Ni 3 S2 nanosheets grow in situ to form Mo/Ni 3 S2@2D NiFe-NF nanoarray with 3D walnut-like structure.The electrochemical performance of the nanoarray is tested by means of an electrochemical workstation.Results show that compared with Ni 3 S2 and 2D NiFe,the 3D walnut-like Mo/Ni 3 S2@2D NiFe-NF nanoarray provides a more stable structure.Meanwhile,the synergistic effect between Mo/Ni 3 S2 and 2D NiFe reduces the electrochemical impedance,increases the electron transport rate,and provides abundant active sites,which accelerating the release of oxygen.Under a current density of 40 mA·cm-2,the overpotential is 168 mV only.Under a current density of 11.6 mA·cm-2,the current density can maintain for more than 50 h without obvious downward trend.

关 键 词：原位生长 三维 协同效应 过电势 

分 类 号：TB331[一般工业技术—材料科学与工程]