Supercapacitive behavior of polyaniline-waste derived carbon-copper cobaltite based ternary composite

被引：8

作者：

Pandey, Vikas Kumar ^{[1
]}

Verma, Sanjeev ^{[1
]}

Das, Tapas ^{[2
]}

Verma, Bhawna ^{[1
]}

机构：

[1] IIT BHU, Dept Chem Engn & Technol, Varanasi 221005, India

[2] Chonnam Natl Univ, Sch Mech Engn, Gwangju 61186, South Korea

来源：

BIORESOURCE TECHNOLOGY REPORTS | 2022年 / 20卷

关键词：

Energy storage; Cyclic-voltammetry; Polyaniline; Waste coconut shell; Copper cobaltite; ELECTRODE; NANOPARTICLES; FACILE; OXIDE; MN; NANOCOMPOSITES; TEMPLATE; STEP;

D O I：

10.1016/j.biteb.2022.101255

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Polyaniline based ternary composites have demonstrated their transcendence in the recent past. This study reports on the synthesis of polyaniline/waste coconut shell derived activated carbon/copper cobaltite based ternary composite for supercapacitor applications. The XPS results confirmed the presence of C, N, O along with Cu and Co peaks. The electrochemical characterizations revealed an excellent specific capacitance of 613.52 Fg(-1) and a specific energy density of 44.16 Wh kg(-1). The prepared ternary composite offered an astonishingly low charge transfer resistance of 5.6 Omega. An outstanding charge retention capacity of 90.76 % was observed over 4000 cycles. An extended investigation of frequency response analysis was also performed to study the total admittance, capacitance, impedance, and phase of Z with frequency. The promising results were obtained due to the synergy between participating species.

引用

页数：11