Mn3O4-polyaniline-graphene as distinctive composite for use in high-performance supercapacitors

被引：32

作者：

Haldar, Prasenjit ^{[1
]}

Biswas, Sudipta ^{[1
]}

Sharma, Vikas ^{[2
]}

Chowdhury, Ananya ^{[1
]}

Chandra, Amreesh ^{[1
,2
]}

机构：

[1] Indian Inst Technol Kharagpur, Dept Phys, Kharagpur 721302, W Bengal, India

[2] Indian Inst Technol Kharagpur, Sch Nanosci & Technol, Kharagpur 721302, W Bengal, India

来源：

APPLIED SURFACE SCIENCE | 2019年 / 491卷

关键词：

Nanomaterials; Polymers; Supercapacitor; Composite; THIN-FILM SUPERCAPACITOR; TRANSITION-METAL OXIDES; CARBIDE-DERIVED CARBON; ACTIVATED CARBON; MN3O4; NANOPARTICLES; ENERGY-STORAGE; TEMPERATURE SYNTHESIS; ELECTRODE MATERIALS; CHEMICAL-SYNTHESIS; MANGANESE OXIDE;

D O I：

10.1016/j.apsusc.2019.06.106

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：

Introduction of graphene into the stable matrix of Mn3O4-polyaniline composite leads to supercapacitor electrode that can deliver specific capacitance > 1000 F g(-1). This is nearly double the value, which is observed in conventional type Mn3O4-polyaniline composite that is able to deliver similar to 500 F g(-1), at a scan rate of 5 mV s(-1) in the voltage window-1 to 1 V. This value is also much greater than those obtained in most of the niche carbon or transition metal oxide based supercapacitors. Cycling studies, carried out at a current density 25 A g(-1) and for 3000 cycles, indicated that the composite continue to retain nearly similar to 97% of the initial capacitance. The enhancement can be explained in terms of the connected percolated conductive path, which originates due to the dispersed graphene sheets.

引用

页码：171 / 179

页数：9

共 91 条

[1] Recent development in the production of activated carbon electrodes from agricultural waste biomass for supercapacitors: A review [J].