Evaluation of charge storage ability of chrome doped Mn2O3 nanostructures derived by cathodic electrodeposition

被引：19

作者：

Darjazic, Hamideh

Davarani, Saied Saeed Hosseiny ^{[1
]}

Moazami, Hamid Reza ^{[2
,3
]}

Yousefi, Taher ^{[4
]}

Tabatabaei, Farideh ^{[1
]}

机构：

[1] Shahid Beheshti Univ, Fac Chem, GC, Tehran 1983963113, Iran

[2] NSTRI, Sch Phys & Accelerators, POB 11365-8486, Tehran, Iran

[3] Naghshe Jahan Inst Higher Educ, Dept Mat Engn, Esfahan, Iran

[4] Nucl Sci & Technol Res Inst, NFCRS, POB 11365-8486, Tehran, Iran

来源：

PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL | 2016年 / 26卷 / 06期

关键词：

Electro synthesis; Nanoparticles; Energy storage; Supercapacitor; Manganese oxide; ELECTROCHEMICAL PROPERTIES; FACILE SYNTHESIS; SOLVOTHERMAL SYNTHESIS; MANGANESE-DIOXIDE; CURRENT-DENSITY; SUPERCAPACITORS; OXIDE; NANOPARTICLES; MICROSPHERES; TEMPERATURE;

D O I：

10.1016/j.pnsc.2016.09.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A facile synthetic route has been proposed to prepare cauliflower-like nanostructures of Cr doped Mn2O3. The synthesis was carried out by constant current cathodic electrodeposition from Mn2+ nitrate solutions containing minor amounts of dichromate. It was found that the presence of Cr mediates the formation of cathodic MnO2 which then reacts with the excess Mn2+ species to form Mn2O3 nanostructures. X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Differential Thermal Analysis (DTA) were used to characterize the nanostructures. The storage ability of the obtained nanostructures was investigated by cyclic voltammetry (CV) in 0.5 M Na2SO4 solution. The results indicated that the Cr doped manganese oxide material shows better performance than the non-doped one, and the charge capacity (SC) of doped manganese oxide (218 F/g) was higher than pure manganese oxide (208 F/g).

引用

页码：523 / 527

页数：5

共 27 条

[1] Ionic liquid-assisted solvothermal synthesis of hollow Mn2O3 anode and LiMn2O4 cathode materials for Li-ion batteries [J].