Water-dispersible graphene-wrapped MnO2 nanospheres and their applications in coin cell supercapacitors

被引：5

作者：

Paianisamy, Siva ^{[1
]}

Shyma, Arunkumar Prabhakaran ^{[1
]}

Srinivasan, Surendhiran ^{[1
]}

Rajendran, Naveen Kumar ^{[1
]}

Venkatachalam, Rajendran ^{[1
,2
]}

机构：

[1] KS Rangasamy Coll Technol, Ctr Nano Sci & Technol, Tiruchengode 637215, Tamil Nadu, India

[2] Dr NGP Arts & Sci Coll, Ctr Nano Sci & Technol, Dr NGP Kalapatti Rd, Coimbatore 641048, Tamil Nadu, India

来源：

IONICS | 2019年 / 25卷 / 09期

关键词：

Water-dispersible graphene; Coin cell; Supercapacitor; Gel electrolyte; Charge-discharge; NICKEL FOAM; PSEUDOCAPACITANCE PROPERTIES; HYDROTHERMAL SYNTHESIS; OXIDE NANOPARTICLES; ELECTRODE MATERIAL; ANODE MATERIAL; PERFORMANCE; MICROSPHERES; NANOSHEETS; NANOWIRES;

D O I：

10.1007/s11581-019-03004-6

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：

A highly stable and more water-dispersible graphene (WDG) was synthesized using microwave-assisted ball milling technique. The WDG-wrapped MnO2 nanocomposites were prepared for two mass ratios of nanospheres and graphene sheets using reflux method. Comprehensive characterization of the prepared WDG-Mn1 and WDG-Mn2 hybrid nanocomposites was carried out to explore the electrochemical capacitance behaviors. The WDG-Mn1 and WDG-Mn2 electrodes showed capacitance performance of 130 F g(-1) at 0.5 A g(-1) and 178 F g(-1) at 0.5 A g(-1), respectively. The WDG-Mn2 electrode revealed enhanced capacitance performance, that is, 84% of its initial capacitance was retained even after repeating the cyclic voltammetry test for 3000 cycles. This study reveals the enhanced capacity performance in WDG-Mn2 nanocomposite hybrid materials for supercapacitors.

引用

页码：4425 / 4436

页数：12

共 50 条

[1] Water-dispersible graphene–wrapped MnO2 nanospheres and their applications in coin cell supercapacitors
Siva Palanisamy
Arunkumar Prabhakaran Shyma
Surendhiran Srinivasan
Naveen kumar Rajendran
Rajendran Venkatachalam
Ionics, 2019, 25 : 4425 - 4436
[2] Facile Synthesis of Graphene-Wrapped Honeycomb MnO2 Nanospheres and Their Application in Supercapacitors
Zhu, Jiayi
He, Junhui
ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (03) : 1770 - 1776
[3] Process dependent graphene-wrapped plate-like MnO2 nanospheres for high performance supercapacitor
Liu, Chunliang
Gui, Dayong
Liu, Jianhong
CHEMICAL PHYSICS LETTERS, 2014, 614 : 123 - 128
[4] Graphene-wrapped MnO2 achieved by ultrasonic-assisted synthesis applicable for hybrid high-energy supercapacitors
Zhang, Meng
Zheng, Hao
Zhu, Huiling
Xu, Zhenfu
Liu, Rui
Chen, Jinglun
Song, Qiang
Song, Xiaojie
Wu, Jie
Zhang, Chunzhi
Cui, Hongzhi
VACUUM, 2020, 176
[5] Microwave-Assisted Synthesis of N-Doped Graphene-Wrapped MnO2 Nanoflowers
El-Shazly M. Duraia
Abbas Fahami
Gary W. Beall
Journal of Electronic Materials, 2018, 47 : 7288 - 7295
[6] Microwave-Assisted Synthesis of N-Doped Graphene-Wrapped MnO2 Nanoflowers
Duraia, El-Shazly M.
Fahami, Abbas
Beall, Gary W.
JOURNAL OF ELECTRONIC MATERIALS, 2018, 47 (12) : 7288 - 7295
[7] Water-dispersible fluorescent nanospheres for applications in fluorescent in-situ hybridization assays
Liu, Guojun
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2006, 231
[8] Synthesis of honeycomb MnO2 nanospheres/carbon nanoparticles/graphene composites as electrode materials for supercapacitors
Xiong, Yachao
Zhou, Min
Chen, Hao
Feng, Lei
Wang, Zhao
Yan, Xinzhu
Guan, Shiyou
APPLIED SURFACE SCIENCE, 2015, 357 : 1024 - 1030
[9] Graphene-Wrapped Graphitic Carbon Hollow Spheres: Bioinspired Synthesis and Applications in Batteries and Supercapacitors
Song, Lei
Xin, Sen
Xu, Da-Wei
Li, Hui-Qin
Cong, Huai-Ping
Yu, Shu-Hong
CHEMNANOMAT, 2016, 2 (06) : 540 - 546
[10] Graphene and nanostructured MnO2 composite electrodes for supercapacitors
Cheng, Qian
Tang, Jie
Ma, Jun
Zhang, Han
Shinya, Norio
Qin, Lu-Chang
CARBON, 2011, 49 (09) : 2917 - 2925

← 1 2 3 4 5 →