Ni/C纳米复合纤维的静电纺丝制备及催化析氧性能  

Oxygen Evolution Reaction Catalytic Activities of Ni/C Nanofibers Prepared by Electrospinning Method

作　　者：凌帅 娄琼月 李涛 杨茂 王盼 LING Shuai;LOU Qiongyue;LI Tao;YANG Mao;WANG Pan(Department of Materials Engineering,School of Mechanical Engineering,Chengdu University,Chengdu,610106,China)

机构地区：[1]成都大学机械工程学院,四川成都6101062

出　　处：《洛阳理工学院学报（自然科学版）》2022年第3期1-5,16,共6页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：材料腐蚀与防护四川省重点实验室开放基金项目(2021CL27);成都大学博士基金项目(2081919131);教育部产学合作协同育人项目(202102152031).

摘　　要：以Ni(CH_(3)COO)_(2)·4H_(2)O和聚乙烯醇(PVA)为原料,采用静电纺丝技术制备Ni(CH_(3)COO)_(2)/PVA纳米纤维前驱体。将Ni(CH_(3)COO)_(2)/PVA纤维前驱体置于管式炉内,在氩气气氛中进行热处理制备了Ni/C复合纳米纤维。采用X-射线衍射仪(XRD)、扫描电镜(SEM)和电化学工作站等检测技术对制备样品进行物相、形貌及电化学性能表征。Ni/C复合超细纤维表面粗糙,直径约300 nm;纤维样品具有明显的碳/镍复合成分;在碱性介质(1 mol/L KOH)中析氧反应具有较高的电催化活性,电流密度在10 mA/cm^(2)时的过电位为445 mV,析氧性能具有良好的稳定性。Ni(CH_(3)COO)_(2)/PVA nanofiber precursors were prepared from Nickel acetate(Ni(CH_(3)COO)_(2)·4H_(2)O)and polyvinyl alcohol(PVA)by electrostatic spinning.Ni(CH_(3)COO)_(2)/PVA fiber precursors were placed in a tubular furnace and heat treated in argon atmosphere to prepare Ni/C composite nanofibers.The phase morphology and electrochemical properties of the samples were characterized by X-ray diffractometer(XRD),scanning electron microscope(SEM)and electrochemical workstation.The results show that the surface of Ni/C composite microfibers are rough and diameters are about 300 nm.The fiber sample has obvious carbon/nickel composition.The oxygen evolution reaction in alkaline medium(1 mol/L KOH)has high electrocatalytic activity,the current density at 10 mA/cm^(2) overpotential of 445 mV,oxygen evolution performance has good stability.

关 键 词：静电纺丝 Ni/C 析氧反应 电催化 

分 类 号：O612.8[理学—无机化学]