电子元件与材料2018，Vol.37Issue(3)：22-28,7.DOI:10.14106/j.cnki.1001-2028.2018.03.004
以杏胡壳为前驱体制备超级电容器炭材料
Preparation of carbon electrode material of supercapacitor with apricot shell as precursor
摘要
Abstract
This paper used apricot shell as precursor to prepare active carbon electrode material by means of high temperature carbonization and surface oxidation modification. Scanning electron microscopy was used to characterize the morphology; three electrode electrochemical system with 2 mol/L KOH solution was used as electrolyte to test the electrochemical performance of materials, including cyclic voltammograms, constant current charging and discharging, electrochemical impedance, and cycle stability test and analysis. The results show that the modified carbon with nitric acid oxidation shows enhanced electrochemical performance. The specific capacitance of 196 F/g is obtained at the current density of 0.5 A/g. After cycling for 2 500 times at the current density of 2 A/g, the capacitance retention rate still remain 99% of the initial value, showing excellent electrochemical performance stability.关键词
清洁能源/杏胡壳/硝酸氧化/活性炭/超级电容器/电极材料Key words
clean energy/apricot shell/nitric acid oxidation/activated carbon/supercapacitor/electrode material分类
通用工业技术引用本文复制引用
何天启,王振,王文春,张康伟,冉奋..以杏胡壳为前驱体制备超级电容器炭材料[J].电子元件与材料,2018,37(3):22-28,7.基金项目
国家自然科学基金资助项目(51203071,51363014,51463012,51763014) （51203071,51363014,51463012,51763014）
博士后科学基金资助项目(2014M552509,2015T81064) （2014M552509,2015T81064）
甘肃省自然科学基金资助项目(2015GS05123) （2015GS05123）
兰州理工大学红柳杰出人才计划(J201402) （J201402）
