Fabrication of biowaste derived carbon-carbon based electrodes for high-performance supercapacitor applications

Mitravinda, T. and Karthik, M. and Anandan, S. and Sharma, Chandra Shekhar and et al, . (2020) Fabrication of biowaste derived carbon-carbon based electrodes for high-performance supercapacitor applications. Indian Journal of Engineering and Materials Sciences, 27 (6). pp. 1080-1090. ISSN 0971-4588

Full text not available from this repository. (Request a copy)

Abstract

The porous carbon is synthesised by chemical activation using cork dust bio-waste as carbon source and the electrochemical performance of the resulting carbon material is tested in even and uneven weight configuration using a two-electrode system. The obtained cork dust derived activated carbon (CDAC) shown a unique honeycomb structured morphology as confirmed by morphological analysis. X-ray diffraction (XRD) and Raman characterisation revealed the graphitic nature of the CDAC. Furthermore, the porous CDAC exhibited high specific surface area (1707 m2/g) and large pore volume (2.4 cc/g) with an average pore size of 4 nm. Even weight supercapacitor cell (SC) (positive and negative electrode with the same weight) and uneven weight SC cell (weight ratio of positive/negative electrodes:1.2) are assembled and tested in 1M TEABF4/AN. Uneven weight SC cell delivers the highest specific capacitance value of 107 F/g at a current density of 1 A/g. The uneven weight device shows promising cyclic stability without significant changes in capacitance values after 10000 and 5000 charge-discharge cycles at the potential window of 3 V and 3.2 V, respectively. On the contrary, a less specific capacitance (87 F/g at a current density of 1 A/g) observed for the even weight SC cell though high-capacity retention is realised under the same experimental conditions. The enhanced supercapacitor performance of uneven weight configuration SC cell is attributed to the weight balancing of the electrode, high graphitic nature, and unique pore size distribution with interconnected morphology of CDAC. Â© 2020, National Institute of Science Communication and Information Resources. All rights reserved.

[error in script]

IITH Creators:

IITH Creators	ORCiD
Sharma, Chandra Shekhar	https://orcid.org/0000-0003-3821-1471

Item Type:

Article

Additional Information:

The authors are thankful to Mr. G. Padmanabham, Director of ARCI, for his support in carrying out the work. The research work is supported by ARCI-technical research centre (Ref. No. Al/1/65/ARCI/2014(C)) through the Department of Science and Technology (DST), Government of India, New Delhi, India is highly acknowledged.

Uncontrolled Keywords:

Chemical activation, Even and uneven weight configuration, Honeycomb, Supercapacitor, Weight balancing

Subjects:

Chemical Engineering

Divisions:

Department of Chemical Engineering

Depositing User:

. LibTrainee 2021

Date Deposited:

04 Nov 2022 09:16

Last Modified:

04 Nov 2022 09:16