摘要
以泡沫铜为原料,通过碱性氧化蚀刻、氨气退火、交替沾蘸法制备Cu_(3)N纳米线阵列为核、ZnAl层状双氢氧化物(ZnAlLDH)为壳的纳米线阵列材料,研究制备工艺对纳米线阵列及其中间产物形貌的影响,以及Cu_(3)N@ZnAl-LDH纳米线阵列的电化学特性。结果表明,Cu_(3)N@ZnAl-LDH纳米线阵列集合了多孔、超薄的二维LDH壳层、高导电性的一维Cu_(3)N核的结构特征,展现出高单位面电容和高能量密度的电化学特性,未来有望用作高性能超级电容器的电极材料。
Using copper foam as raw material,the nanowire array with Cu_(3)N as core and ZnAl layered dihydroxide(ZnAl-LDH)as shell were prepared by alkaline oxidation etching,ammonia annealing and alternating dipping method.The effect of preparation process on the morphology of the nanowire array and its intermediate products was studied.And electrochemical properties of Cu_(3)N@ZnAl-LDH nanowire arrays was also investigated.The results show that the Cu_(3)N@Znal-LDH nanowires array combines the structural characteristics of porous,ultra-thin two-dimensional LDH shell and highly conductive one-dimensional Cu_(3)N core,and exhibits high unit surface capacitance and high energy density,It is expected to be used as electrode material for high-performance supercapacitors in the future.
作者
周昊涵
魏铭江
胡忆河
黄新堂
ZHOU Haohan;WEI Mingjiang;HU Yihe;HUANG Xintang(College of Physical Science and Technology,Central China Normal University,Wuhan 430079,China;Department of Materials Science and Engineering,City University of Hong Kong,Hong Kong 999077,Ch ina)
