High performance solid state symmetric supercapacitor based on reindeer moss-like structured Al(OH)3/MnO2/FeOOH composite electrode for energy storage applications

Shama Parveen, Kavyashree,, Suneel Kumar Sharma and S.N. Pandey

Energy, 2021, vol. 224, issue C

Abstract: Developing an efficient, clean, sustainable, and reliable energy storage system is still a key challenge to resolve the growing demands of energy consumption. In this regard, supercapacitor becomes one of the foremost promising and emerging types of energy storage systems comprising properties of traditional batteries and conventional capacitors. Herein, a binder-free composite electrode of Al(OH)3/MnO2/FeOOH (AMFO) has been synthesized on stainless steel substrate via a facile, eco-friendly, and cost-effective Layer by Layer method at room temperature. The high resolution scaning electron microscopy reveals the mesoporous reindeer moss-like morphology of the synthesized electrode. The supercapacitive behaviour of the synthesized electrode has been explored in 1 M Na2SO4 electrolyte solution by using electrochemical measurement. The highest specific capacity of 2557 C g−1 has been obtained at a scan rate of 5 mV s−1 having wide potential range (−1.10 to 1.05 V). Further, a symmetric prototype supercapacitive device has been fabricated by coupling the AMFO electrodes. The high specific capacitance of 511 F g−1 has been obtained with ultra-high energy and power densities of ∼443 Wh kg−1 and ∼13 kW kg−1, respectively. These results indicate that this electrode has potential practical applications as a power backup, portable electronic device, and energy storage system.

Keywords: Energy storage device; Layer by layer method; Reindeer moss-like morphology; Electrochemical behaviour; Supercapacitor (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544221003868
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:224:y:2021:i:c:s0360544221003868

DOI: 10.1016/j.energy.2021.120137

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().