祝江赛,朱墨,王志坤,胡庆丰,王晗,王志峰,秦春玲.三明治型纳米多孔镍/氧化镍电极材料的制备及储能特性[J].稀有金属材料与工程,2018,47(12):3872~3879.[Zhu Jiangsai,Zhu Mo,Wang Zhikun,Hu Qingfeng,Wang Han,Wang Zhifeng,Qin Chunling.Fabrication and Electrochemical Properties of Sandwich-Type Nanoporous Nickel/Nickel Oxide Composite Electrodes[J].Rare Metal Materials and Engineering,2018,47(12):3872~3879.]
三明治型纳米多孔镍/氧化镍电极材料的制备及储能特性
投稿时间:2017-04-10  修订日期:2017-09-14
中文关键词:  镍基非晶合金,脱合金,纳米多孔镍/氧化镍,三明治结构,比电容
基金项目:国家自然科学基金(项目号51671077),河北省自然科学基金(E2016202212,E2015202081),河北省百人计划(E2012100009),研究生创新项目(220056)
中文摘要:
      设计Ni40Ti60高强韧非晶合金为前驱体在0.25 M HF溶液中“自由脱合金-自然氧化”一步法得到纳米多孔镍/氧化镍(np-Ni/NiO)复合电极材料。对复合电极材料的结构、形貌和储能特性进行探究,结果表明:np-Ni/NiO具有“脱合金层︱非晶芯层︱脱合金层”的三明治型复合结构,层与层之间自然结合,保证了电极材料的柔韧性和结构一体化;脱合金层的厚度与NiO的含量随脱合金时间延长而增加。脱合金2 h的样品其体积比电容可达491.1 F/cm3,循环6000次后仍可达472 F/cm3
Fabrication and Electrochemical Properties of Sandwich-Type Nanoporous Nickel/Nickel Oxide Composite Electrodes
英文关键词:Ni-based amorphous alloy  dealloying  nanoporous nickel/nikel oxide  sandwich-type structure  specific capacitors
英文摘要:
      Nanoporous Nickel/Nickel Oxide (np-Ni/NiO) composite electrodes were fabricated with a “free dealloying - natural oxidation” method by dealloying a high ductile amorphous Ni40Ti60 precursor alloy in 0.25 M HF solution. The structure, morphologies and electrochemical properties of the composite electrodes were studied by XRD, SEM and Electrochemical measurements. The results indicate that the np-Ni/NiO composites exhibit a sandwich-type structure with "dealloyed layer︱amorphous alloy core︱dealloyed layer ". Due to the good connection between layers, the electrode material performs an excellent flexibility and structural integration. The thickness of the dealloyed layer and the content of NiO increase with extending the dealloying time. The volume capacitance of np-Ni/NiO by dealloying Ni40Ti60 ribbons in 0.25 M HF for 2 h can reach to 491.1 F/cm3 at a discharge current density of 0.5 A/cm3. After 6000 cycles, the volume capacitance remains at 472 F/cm3, indicating an excellent cycle stability of np-Ni/NiO composite electrodes.
作者单位E-mail
祝江赛 河北工业大学材料科学与工程学院 zjsthink0913@126.com 
朱墨 河北工业大学材料科学与工程学院  
王志坤 河北工业大学材料科学与工程学院  
胡庆丰 河北工业大学材料科学与工程学院  
王晗 河北工业大学材料科学与工程学院  
王志峰 河北工业大学材料科学与工程学院  
秦春玲 河北工业大学材料科学与工程学院 clqin@hebut.edu.cn 
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