非晶态镍-锰-硼/介孔碳电极的制备及性能  

Preparation and performance of amorphous nickel-manganese-boron/mesoporous carbon electrode

作　　者：俞伶俐 张炜[1] 姚明超[1] 唐博合金[1] 

机构地区：[1]上海工程技术大学化学化工学院,上海201620

出　　处：《电池》2015年第6期301-304,共4页Battery Bimonthly

摘　　要：采用化学还原法制备非晶态镍-锰-硼（Ni-Mn-B）合金和非晶态Ni-Mn-B/介孔碳纳米线阵列（Ni-Mn-B/MCNA）复合电极材料,对结构和形貌进行XRD、SEM和透射电镜（TEM）分析。非晶态Ni-Mn-B合金颗粒在负载MCNA后变得更加分散。在6 mol/L KOH溶液中,非晶态Ni-Mn-B和Ni-Mn-B/MCNA复合电极材料以5 m V/s的速率在-0.2~0.8 V循环伏安扫描,比电容分别为768 F/g和1 150 F/g。交流阻抗和充放电测试表明：Ni-Mn-B/MCNA复合电极材料的导电性相对于非晶态Ni-Mn-B合金得到增强,比容量有所提高。Amorphous nickel-manganese-boron（ Ni-Mn-B） alloys and nickel-manganese-boron / mesoporous carbon nanofiber arrays（Ni-Mn-B/MCNA）compound were synthesized via chemical reduction method,the structure and morphology were investigated by XRD,SEM and transmission electron microscope（ TEM）. Amorphous Ni-Mn-B alloy particle was more dispersed with the MCNA supported. In 6 mol / L KOH solution,the specific capacitances of Ni-Mn-B and Ni-Mn-B / MCNA compound electrodes were 768 F / g and 1 150 F / g,respectively,when cyclic voltammetry scanned in- 0. 2 ~ 0. 8 V with the speed of 5 m V / s. A. C. impedance spectroscopy and charge-discharge test showed that the electronic conductivity of Ni-Mn-B / MCNA compound electrode material was enhanced compared with amorphous Ni-Mn-B alloy,its specific capacity was increased.

关 键 词：Ni-Mn-B合金 介孔碳纳米线阵列 电极材料 超级电容器 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TM53[电气工程—电器]