Hydrothermal synthesis of Mn-doped ZnCo2O4 electrode material for high-performance supercapacitor

被引：89

作者：

Mary, A. Juliet Christina ^{[1
]}

Bose, A. Chandra ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Phys, Nanomat Lab, Tiruchirappalli 620015, Tamil Nadu, India

来源：

APPLIED SURFACE SCIENCE | 2017年 / 425卷

关键词：

Hydrothermal method; High specific capacitance; Good stability; 10 wt% Mn doped ZCO two-electrode device; MICROWAVE-ASSISTED SYNTHESIS; HIGH AREAL; NANOPARTICLES; COMPOSITE; CO3O4; NANOFLAKES; FACILE; DESIGN; ANODE; NIO;

D O I：

10.1016/j.apsusc.2017.06.313

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Mn-doped ZnCo2O4 nanoparticle has been synthesized by hydrothermal method without adding any surfactants. Structural, morphological and electrochemical performances have been studied for the pure and various concentration of Mn-doped ZnCo2O4 nanoparticles. XRD and Raman studies demonstrate the crystalline structure of the material. Specific capacitance of the 10 wt% Mn doped ZnCo2O4 nanomaterial is analysed using the three-electrode system. 10 wt% Mn-doped ZnCo2O4 has a maximum capacitance of 707.4 F g(-1) at a current density of 0.5 A g(-1). Coulombic efficiency of the material is 96.3% for 500 cycles in the KOH electrolyte medium. A two-electrode device using 10 wt% Mn-doped ZnCo2O4 exhibits the highest specific capacitance of 6.5 F g(-1) at a current density of 0.03 A g(-1) which is the suitable material for supercapacitor application. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：201 / 211

页数：11

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