| 原位电化学沉积氧化锰及其电化学性能研究 |
| |
| 引用本文： | 白明华,刘锐,王莹,于湛,付雅君,黎亚青.原位电化学沉积氧化锰及其电化学性能研究[J].材料导报,2018,32(Z1):28-32. |
| |
| 作者姓名： | 白明华 刘锐 王莹 于湛 付雅君 黎亚青 |
| |
| 作者单位： | 沈阳师范大学化学化工学院能源与环境催化研究所;中国石油大学重质油国家重点实验室 |
| |
| 基金项目： | 金基项目:辽宁省自然科学基金(20170540818)；辽宁省高等学校基本科研项目(LQN201705)；沈阳师范大学校内一般项目(05451600313)；沈阳师范大学博士启动项目(05455440111006)；沈阳师范大学校内重大孵化项目(05491600301013) |
| |
| 摘 要： | 在1M H2SO4溶液中0~2.0V(vs.SCE)电位范围内对碳纸进行循环伏安扫描(CV),得到带有活性位点的功能化碳纸基底,通过循环伏安扫描和恒电流充放电(CP)检测,表明功能化碳纸的电化学活性有了明显提高。以氧化锰(MnO_2)超级电容器电极材料为研究背景,在功能化碳纸表面进行原位电化学制备MnO_2。分别在0.05mol/L、0.10mol/L、0.15mol/L、0.2mol/L、0.25mol/L浓度乙酸锰溶液中制备的0.05M-MnO_2、0.1M-MnO_2、0.15M-MnO_2、0.2M-MnO_2、0.25M-MnO_2电极,通过FT-IR和XRD对MnO_2的结构进行表征,在547.21cm-1处为Mn-O键的吸收峰。在1 637.61cm-1处的吸收峰是以物理吸附水的形式存在于材料中的-OH,在1 421.46cm-1处的吸收峰是以化学吸附水的形式存在于材料中的-OH,说明制得的为MnO_2·nH2O。XRD结果表明,该方法制备的MnO_2为结晶化程度较小的无定型结构。扫面电镜图片显示0.05M-MnO_2电极具有较大的比表面积,比表面积大的结构有利于电解液的储存,从而有效提高了电极材料的储能性能。在0.5 mol/L Na2SO4溶液中进行CV扫描测试、交流阻抗测试(EIS)和CP测试,0.05M-MnO_2电化学活性最强,表现出了最好的电容性能,比电容可达到575F/g。
|
| 关 键 词： | 氧化锰 电化学沉积 电化学性能 |
In Suit Electrochemical Deposition of Manganese Oxide and ItsElectrochemical Performance |
| |
| BAI Minghu,LIU Rui,WANG Ying,YU Zhan,FU Yajun and LI Yaqing.In Suit Electrochemical Deposition of Manganese Oxide and ItsElectrochemical Performance[J].Materials Review,2018,32(Z1):28-32. |
| |
| Authors: | BAI Minghu LIU Rui WANG Ying YU Zhan FU Yajun and LI Yaqing |
| |
| Affiliation: | Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034;State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249,Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034,Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034,Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034,Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034 and Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034 |
| |
| Abstract: | |
| |
| Keywords: | manganese oxide electrochemical deposition electrochemical performance |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《材料导报》浏览原始摘要信息 |
|
点击此处可从《材料导报》下载全文 |
|
