Improved Specific Capacitance of Amorphous Vanadium Pentoxide in a Nanoporous Alumina Template

被引：12

作者：

Jeon, Hongrae ^{[1
]}

Jeong, Beomgyun ^{[1
]}

Lee, Jae Kwang ^{[1
]}

Kim, Ho Sung ^{[2
]}

Lee, Si-Hyun ^{[3
]}

Lee, Jaeyoung ^{[1
]}

机构：

[1] Gwangju Inst Sci & Technol, Dept Environm Sci & Engn, Electrochem React & Technol Lab, Kwangju 500712, South Korea

[2] Korea Inst Ind Technol, Gwangju Res Ctr, Kwangju 506824, South Korea

[3] Korea Inst Energy Res, Climate Change Technol Res Div, Clean Fossil Energy Res Ctr, Taejon 305343, South Korea

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2010年 / 13卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

amorphous state; capacitance; electrodeposition; electrolytes; materials preparation; nanoporous materials; scanning electron microscopy; vanadium compounds; voltammetry (chemical analysis); X-ray diffraction; ELECTROCHEMICAL CAPACITORS; RUTHENIUM OXIDE; NANOTUBE ARRAYS; NANOWIRES; SUPERCAPACITOR; FABRICATION; GENERATION; BEHAVIOR; STORAGE; CU2O;

D O I：

10.1149/1.3276687

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This article investigates the physicochemical properties of vanadium pentoxide (V(2)O(5)) prepared by anodic electrodeposition onto two nanoporous alumina templates having pore sizes of 50 and 200 nm. V(2)O(5) formed inside the templates was an amorphous structure with flakelike (50 nm) and round (200 nm) shapes. The capacitance of V(2)O(5) was measured using cyclic voltammetry in 1 M KCl electrolyte, and ca. 900 F g(-1) of maximum specific capacitance was obtained from V(2)O(5) in 50 nm alumina oxide. Improved specific capacitance of V(2)O(5) is ascribed to the high surface area of the porous structure by the use of the template.

引用

页码：A25 / A28

页数：4

共 32 条

[1]

[Anonymous], 1999, ELECTROCHEMICAL SUPE

[2] TRANSITION FROM SUPERCAPACITOR TO BATTERY BEHAVIOR IN ELECTROCHEMICAL ENERGY-STORAGE [J].