Nickel Oxide-Incorporated Polyaniline Nanocomposites as an Efficient Electrode Material for Supercapacitor Application

被引：60

作者：

Gautam, Krishna Prasad ^{[1
]}

Acharya, Debendra ^{[2
]}

Bhatta, Indu ^{[1
]}

Subedi, Vivek ^{[1
]}

Das, Maya ^{[1
]}

Neupane, Shova ^{[1
]}

Kunwar, Jyotendra ^{[1
]}

Chhetri, Kisan ^{[2
]}

Yadav, Amar Prasad ^{[1
]}

机构：

[1] Tribhuvan Univ, Cent Dept Chem, Kathmandu 44618, Nepal

[2] Jeonbuk Natl Univ, Dept Nano Convergence Engn, Jeonju 561756, South Korea

来源：

INORGANICS | 2022年 / 10卷 / 06期

关键词：

supercapacitors; polyaniline (PANI); polyaniline-nickel oxide (PANI-NiO); electrode materials; energy storage; NIO NANOPARTICLES; ENERGY-STORAGE; PERFORMANCE; COMPOSITE; FABRICATION; CARBON; SIZE;

D O I：

10.3390/inorganics10060086

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

This work reports the facile, controlled, and low-cost synthesis of a nickel oxide and polyaniline (PANI) nanocomposites-based electrode material for supercapacitor application. PANI-NiO nanocomposites with varying concentrations of NiO were synthesized via in-situ chemical oxidative polymerization of aniline. The XRD and FTIR support the interaction of PANI with NiO and the successful formation of the PANI-NiO-x nanocomposite. The SEM analysis showed that the NiO and PANI were mixed homogenously, in which the NiO nanomaterial was incorporated in porous PANI globular nanostructures. The multiple phases of the nanocomposite electrode material enhance the overall performance of the energy-storage behavior of the supercapacitor that was tested in 1 M H2SO4 using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS). Among the different nanocomposites, PANI-NiO-3 exhibit the specific capacitance of a 623 F g(-1) at 1 A g(-1) current density. Furthermore, the PANI-NiO-3 electrode retained 89.4% of its initial capacitance after 5000 cycles of GCD at a 20 A g(-1) current density, indicating its significant cyclic stability. Such results suggest that PANI-NiO nanocomposite could be proposed as an appropriate electrode material for supercapacitor applications.

引用

页数：13