Synthesis and characterization of α-MnO2 nanoneedles for electrochemical supercapacitors

被引：121

作者：

Davoglio, Rogerio A. ^{[1
]}

Cabello, Gema ^{[1
,2
]}

Marco, Jose F. ^{[3
]}

Biaggio, Sonia R. ^{[1
]}

机构：

[1] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil

[2] Univ Aberdeen, Sch Med Med Sci & Nutr, Aberdeen AB25 2ZD, Scotland

[3] CSIC, Inst Quim Fis Rocasolano, C Serrano 119, Madrid 28006, Spain

来源：

ELECTROCHIMICA ACTA | 2018年 / 261卷

关键词：

Manganese oxide; Liquid-liquid interfacial reaction; Microwave-assisted synthesis; Needle-type morphology; 1D structure; HYDROTHERMAL SYNTHESIS; PSEUDOCAPACITANCE PROPERTIES; INTERFACIAL SYNTHESIS; ELECTRODE MATERIAL; RUTHENIUM OXIDE; ENERGY-STORAGE; CHARGE STORAGE; MNO2; PERFORMANCE; FILMS;

D O I：

10.1016/j.electacta.2017.12.118

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In this work, we report the microwave-assisted synthesis of alpha-MnO2 particles at the aqueous-organic interface. Morphological and structural characterizations were performed by SEM, HR-TEM, RXD and XPS. alpha-MnO2 particles presented 1D-needle shaped structure with 20 nm thickness. Electrochemical performance was studied by cyclic voltammetry at different potential windows and scan rates, and by galvanostatic charge-discharge measurements. MnO2 nanoneedles exhibited capacitances up to 289 Fg(-1) (at 0.5 Ag-1) and good electrochemical stability (up to 88% of the initial capacitance after 10,000 charge/discharge cycles), confirming a good performance as electrode materials for supercapacitors. (c) 2017 Elsevier Ltd. All rights reserved.

引用

页码：428 / 435

页数：8

共 50 条

[31] Synthesis and electrochemical evaluation of the PANI/δ-MnO2 electrode for high performing asymmetric supercapacitors
Misnon, Izan Izwan
Jose, Rajan
[J]. NEW JOURNAL OF CHEMISTRY, 2017, 41 (14) : 6574 - 6584
[32] SYNTHESIS AND ELECTROCHEMICAL PROPERTIES OF GRAPHENE/MnO2/CONDUCTING POLYMER TERNARY COMPOSITE FOR SUPERCAPACITORS
Lin, Jinxian
Zheng, Yuying
Du, Qifeng
He, Mingping
Deng, Zhongwen
[J]. NANO, 2013, 8 (01)
[33] Synthesis and electrochemical properties of nanophase MnO2 by solid-phase reaction(I) -: Synthesis and characterization of nanophase γ-MnO2
Li, J
Xia, X
Li, QW
[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 1999, 20 (09): : 1434 - 1437
[34] Synthesis and Electrochemical Properties of Nanophase MnO2 by Solid-phase Reaction(I) - Synthesis and Characterization of Nanophase γ-MnO2
Li, Juan
Xia, Xi
Li, Qing-Wen
[J]. Kao Teng Hsueh Hsiao Hua Heush Hsueh Pao/ Chemical Journal of Chinese Universities, 1999, 20 (09):
[35] MnO2 nanotube and nanowire arrays by electrochemical deposition for supercapacitors
Xia, Hui
Feng, Jinkui
Wang, Hailong
Lai, Man On
Lu, Li
[J]. JOURNAL OF POWER SOURCES, 2010, 195 (13) : 4410 - 4413
[36] Structural and Electrochemical Performances of α-MnO2 Doped with Tin for Supercapacitors
黎阳
LI Jing
XIE Huaqing
YANG Fan
ZHOU Yuhong
[J]. Journal of Wuhan University of Technology(Materials Science), 2017, 32 (02) : 237 - 244
[37] Preparation and Enhanced Electrochemical Performance of MnO2 Nanosheets for Supercapacitors
Mondal, Anjon Kumar
Wang, Bei
Su, Dawei
Wang, Ying
Zhang, Xiaogang
Wang, Guoxiu
[J]. JOURNAL OF THE CHINESE CHEMICAL SOCIETY, 2012, 59 (10) : 1275 - 1279
[38] Structural and Electrochemical Performances of α-MnO2 Doped with Tin for Supercapacitors
Li Yang
Li Jing
Xie Huaqing
Yang Fan
Zhou Yuhong
[J]. JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION, 2017, 32 (02): : 237 - 244
[39] Structural and electrochemical performances of α-MnO2 doped with tin for supercapacitors
Yang Li
Jing Li
Huaqing Xie
Fan Yang
Yuhong Zhou
[J]. Journal of Wuhan University of Technology-Mater. Sci. Ed., 2017, 32 : 237 - 244
[40] MnO2 Nanosheets-Decorated CuO Nanoneedles Arrays@Cu Foils For Supercapacitors
Wang, Xiao
Chen, Chen
Chen, Ke
Chen, Hao
Yuan, Shao Jun
[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, 2016, 11 (05): : 3425 - 3435

← 1 2 3 4 5 →