A mathematical model of nanoparticulate mixed oxide pseudocapacitors; part I: model description and particle size effects

被引：18

作者：

Farsi, Hossein ^{[1
]}

Gobal, Fereydoon ^{[2
]}

机构：

[1] Univ Birjand, Dept Chem, Birjand, Iran

[2] Sharif Univ Technol, Dept Chem, Tehran, Iran

来源：

JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2009年 / 13卷 / 03期

关键词：

Pseudocapacitors; Nanoparticles; Metal oxide; Ragone plot; Discharge curve; HYDROUS RUTHENIUM OXIDE; ELECTROCHEMICAL CAPACITOR; COMPOSITE ELECTRODE; METAL-OXIDE; THIN-FILMS; NICKEL; PERFORMANCE; MANGANESE; SUPERCAPACITOR; BEHAVIOR;

D O I：

10.1007/s10008-008-0576-5

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A mathematical model was developed to describe the performance of nanoparticulate mixed oxide pseudocapacitors based on RuO2-MO2 (M being another suitable transition metal) under galvanostatic charge/discharge regime. Both double layer and faradaic processes were taken into account. The effects of the active material's particle size and composition were examined. Furthermore, the influence of discharge current on the extents of double layer and faradaic contributions was analyzed. The model analysis showed that the energy density declined upon increasing the volume fraction of larger particles.

引用

页码：433 / 443

页数：11

共 41 条

[1] Capacitive and textural characteristics of manganese oxide prepared by anodic deposition: effects of manganese precursors and oxide thickness [J].