电化学2017，Vol.23Issue(6)：667-674,8.DOI:10.13208/j.electrochem.170103
NiS2纳米片的制备及其在非对称超级电容器中的应用
Preparation of NiS2 Nanosheet and Its Application in Asymmetric Supercapacitor
摘要
Abstract
In this work,the NiS2 nanosheets have been synthesized using Ni(OH)2 as a precursor through a sacrificial template method.The microstructure and chemical composition of as-prepared NiS2 were characterized by XRD,EDS,BET,SEM and TEM techniques.The results showed that both Ni(OH)2 and NiS2 were composed of nanoplates.The electrochemical tests revealed that NiS2 exhibited the high specific capacitance of 1067.3 F· g-1 at a current density of 1 A· g-1 and excellent rate performance.Furthermore,in order to evaluate the practical application of NiS2,an asymmetric supercapacitor,NiS2 as the positive electrode and AC as the negative electrode,displayed high energy density of 38.4 Wh· kg-1 with a power density of 0.8 kW· kg-1.Meanwhile,the asymmetric supercapacitor showed a superior cycling performance and 93.7％ of the specific capacitance was retained after 3000 charge-discharge cycles.关键词
牺牲模板法/NiS2纳米片/非对称电容器Key words
sacrificial template method/NiS2/asymmetric supercapacitor分类
化学化工引用本文复制引用
王元有,刘亚楠,金党琴..NiS2纳米片的制备及其在非对称超级电容器中的应用[J].电化学,2017,23(6):667-674,8.基金项目
省级‘青蓝工程’项目(2016-15)、校级重点课题(No.2016xjzk001)、江苏高校品牌建设工程资助项目(No.PPZY2015B180)及2017年江苏省高等学校优秀科技创新团队项目(苏教科[2017]6号)资助 （2016-15）
