Academic Journal

超级电容器电极材料纳米α-MnO_2的制备及性能 ; Preparation and properties of nano-structured α-MnO_2 as electrode material of supercapacitor

التفاصيل البيبلوغرافية
العنوان: 超级电容器电极材料纳米α-MnO_2的制备及性能 ; Preparation and properties of nano-structured α-MnO_2 as electrode material of supercapacitor
المؤلفون: 张琦, 郑明森, 朱亚薇, 董全峰, 金明钢, 詹亚丁, 林祖赓
بيانات النشر: 《电池》编辑部
سنة النشر: 2005
المجموعة: Xiamen University Institutional Repository
مصطلحات موضوعية: 超级电容器, 二氧化锰, 电极材料, 比容量, supercapacitor, electrode material, MnO_2, specific capacity
الوصف: [中文文摘]用KMnO4和MnSO4水溶液作为原料,用液相沉淀法制备无定形-αMnO2.nH2O。对样品进行比表面积测定(BET)、XRD、SEM等测试。通过循环伏安法和恒流充放电测试研究了样品的电化学行为。合成的无定形-αMnO2.nH2O在0.5mol/L的Na2SO4电解液中,在0~0.9 V(vs.SCE)范围内,电流为10 mA,2 mV/s的扫描速度下的比电容可达126.4 F/g。无定形-αMnO2.nH2O是较好的超级电容器电极材料。[英文文摘]Amorphous α-MnO_2·nH_2O was synthesized with chemical coprecipitation method by using KMnO_4 and MnSO_4(aqueous) solution as raw materials.The sample was characterized by BET,XRD and SEM.The electrochemical characteristics of the sample were characterized by CV and constant current charge-discharge tests.The specific capacitance of the amorphous α-MnO_2·nH_2O was 126.4 F/g in 0.5 mol/L Na_2SO_4 electrolyte at the scan rate of 2 mV/s,the current of 10 mA,in the range of 0~(0.9 V)(vs.SCE).The amorphousα2MnO2·nH2O was an excellent electrode material for supercapacitor. ; 973项目(2002CB211800); 国家自然科学基金(20373058); 福建省科技项目(2003H044)。
نوع الوثيقة: article in journal/newspaper
اللغة: Chinese
تدمد: 1001-1579
Relation: 电池,2005(6):437-439; http://dspace.xmu.edu.cn/handle/2288/3246
الاتاحة: http://dspace.xmu.edu.cn/handle/2288/3246
رقم الانضمام: edsbas.D7E6A413
قاعدة البيانات: BASE