CP@NiAl-LDH复合材料的制备及其超级电容器性能  

Synthesis and Supercapacitor Performance of Conductive Polymer@Nickel and Aluminum Double Metal Hydroxide Composites

作　　者：普颖慧 杜东峰 于世凡 邢伟 PU Ying-Hui;DU Dong-Feng;YU Shi-Fan;XING Wei(College of Science,China University of Petroleum(East China),Qingdao,Shandong 266580,China)

机构地区：[1]中国石油大学(华东)理学院,青岛266580

出　　处：《无机化学学报》2018年第11期1983-1990,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21476264);泰山学者青年专家计划(No.tsqn20161017);山东省自然科学基金重大基础研究项目(No.ZR201801280009);中央高校基础研究经费(No.18CX05007A);国家级大学生创新创业训练计划(No.201810425067)资助

摘　　要：通过采用简易温和的水热条件制备导电聚合物@镍铝层状双金属氢氧化物复合材料(CP@NiAl-LDH),构建电子/离子的高速传输纳米通道,利用SEM和XRD对复合材料结构形貌进行表征。电化学性能测试结果表明,导电聚合物为复合材料提供一定的赝电容,促进电荷的快速转移,使CP@NiAl-LDH的电容性能得以显著提升。PPy@LDH具有最好的电容性能,在1 A·g^(-1)的电流密度下,其比容量高达3 010.3 F·g^(-1),当电流密度升高到20 A·g^(-1)时,其比电容保持率为73.1%,表现出优异的倍率性能;同时,在10 A·g^(-1)的电流密度下10 000次充放电循环后仍具有88.8%的比容量保持率,具有优异的循环稳定性。这主要归功于NiAl-LDH与导电聚合物之间的协同增强效应。The composite materials of conductive polymer@nickel and aluminum double metal hydroxide were prepared using the simple and mild hydrothermal conditions,constructing the nano-channels for high-speed transmission of electrons and electrolyte.The morphologies and microstructures of the composites were characterized by scanning electron microscope(SEM)and X-ray diffraction(XRD).The results of electrochemical performance showed that the conductive polymer could provide some pseudocapacitance for the composite material,promote the rapid transfer of charge,and improve significantly the capacitive performance of [e-mail] polypyrrole@LDH had the best performance of capacitance,the specific capacity could reach 3 010.3 F·g-1 at the current density of 1 A·g-1,and the specific capacitance remained 73.1%when the current density increased to 20 A·g-1,exhibiting excellent rate performance.Furthermore,it also displayed excellent cycling stability with a specific capacity retention rate of 88.8%after 10 000 times of charge-discharge cycles at the current density of 10 A·g-1.These were mainly ascribed to the synergetic enhancement effect among NiAl-LDH and conductive polymer.

关 键 词：复合材料 导电聚合物 层状双金属氢氧化物 超级电容器 

分 类 号：TB321[一般工业技术—材料科学与工程]