Vertically aligned NiS nano-flakes derived from hydrothermally prepared Ni(OH)2 for high performance supercapacitor

查看全文 作　　者：[1]A.M.Patil;[2]A.C.Lokhande;[1]P.A.Shinde;[2]J.H.Kim;[1,3]C.D.Lokhande

机构地区：[1]Thin Film Physics Laboratory,Department of Physics,Sbivaji University,Kolbapar 416004 MH,India;[2]Department of Materials Science and Engineering,Chonnam National University 300 Yongbong-Dong,Puk-Gu,Gwangju.South Korea;[3]Centre for Interdisciplinaly Research,D.Y.Patil University,Kolhapur,India

出　　处：《Journal of Energy Chemistry》索引2018年第27卷第3期,共10页

基　　金：the Human Resources Development program(No.20124010203180)of Korea Institute of Energy Technology Evaluation;The basic Science Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Science,ICT(NRF-2015R1A2A2A01006856) 摘　　要：In present work,the vertically aligned Ni S nano-flakes composed thin film is prepared by anionic exchange process in which hydrothermally prepared Ni(OH)_2is used as a parent thin film and Na_2S as a sulfide ion source.This synthesis process produced fully transformed and shape-controlled nano-flakes of Ni S from nano-flowers of Ni(OH)_2.The electrochemical supercapacitor properties of Ni S electrode are studied with cyclic voltammetry(CV),galvonostatic charge discharge(GCD)and electrochemical impedance spectroscopy(EIS)techniques.Highly porous surface area(85 m^2/g)of Ni S nano-flakes makes large material contribution in electrochemical reaction stretching specific capacitance(C_s)of 880 F/g at scan rate of 5 m V/s and 90%electrochemical stability up to 4000 CV cycles in 2 M KOH electrolyte.Further,the flexible solid-state symmetric supercapacitor device(Ni S/PVA–Li ClO_4/Ni S)has been fabricated using Ni S electrodes with polyvinyl alcohol(PVA)–lithium perchlorate(Li ClO_4)gel electrolyte.The Ni S/PVA–Li ClO_4/Ni S device exhibits specific capacitance of 56 F/g with specific energy of 14.98 Wh/kg and excellent cycling stability after 2000 cycles.In addition,the Ni S/PVA–Li ClO_4/Ni S device demonstrates illumination of red light emitting diode(LED)for 60 s,which confirms the practical applicability of Ni S/PVA–Li ClO_4/Ni S device in energy storage. 关键词：NANO NIS 排列垂直水地片源电气化学合成过程

相关文献

参考文献（57）
引证文献（4）
耦合文献（0）

参考文献(57)

引证文献(4)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Vertically aligned NiS nano-flakes derived from hydrothermally prepared Ni(OH)2 for high performance supercapacitor

参考文献(57)

引证文献(4)

用户提示