Well-dispersed chromium oxide decorated reduced graphene oxide hybrids and application in energy storage

被引：15

作者：

Song, Chunyan ^{[1
]}

Gui, Yongliang ^{[1
]}

Xing, Xuteng ^{[1
]}

Zhang, Wei ^{[2
]}

机构：

[1] North China Univ Sci & Technol, Coll Met & Energy, 46 Xinhua West Rd, Tangshan 063009, Peoples R China

[2] North China Univ Sci & Technol, Modern Technol & Educ Ctr, 46 Xinhua West Rd, Tangshan 063009, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2016年 / 173卷

基金：

中国国家自然科学基金;

关键词：

Composite materials; Chemical synthesis; Oxides; Electrochemical properties; HIGH-PERFORMANCE SUPERCAPACITORS; ELECTROCHEMICAL PROPERTIES; CARBON NANOTUBES; AQUEOUS-SOLUTION; FACILE SYNTHESIS; PSEUDOCAPACITANCE; NANOPARTICLES; CAPACITOR; SURFACE; POWDER;

D O I：

10.1016/j.matchemphys.2016.02.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This report describes an artful method to prepare Cr2O3/reduced graphene oxide (rGO) using Cr powder and graphene oxide (GO) as follows: the one-pot reaction between GO and Cr powder to obtain the well dispersed Cr3+ ions decorated rGO, followed by adding ammonia water and annealing to easily transform to Cr2O3/rGO hybrids. The introduction of rGO can improve the surface area and conductivity of the Cr2O3/rGO hybrids. Therefore, the Cr2O3/rGO hybrids show excellent electrochemical performances than pure Cr2O3, such as the three times as high specific capacitance of Cr2O3/rGO than pure Cr2O3. In addition, the Cr-based material could be also used as a class of electrode material of supercapacitors. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：460 / 466

页数：7

共 28 条

[1] A novel method to synthesize Cr2O3 nanopowders using EDTA as a chelating agent [J].