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Construction of MnCo2O4/rGO hybrid nanostructures as promising electrode material for high-performance pseudocapacitors
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SYSNO ASEP 0543204 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Construction of MnCo2O4/rGO hybrid nanostructures as promising electrode material for high-performance pseudocapacitors Author(s) Askari, M. B. (IR)
Salarizadeh, P. (IR)
Beheshti-Marnani, A. (IR)
Azizi, S. (IR)
Zadeh, M. H. R. (TR)
Rohani, T. (IR)
Beydaghi, H. (IT)
Saeidfirozeh, Homa (UFCH-W) ORCID, RIDSource Title Journal of Materials Science-Materials in Electronics. - : Springer - ISSN 0957-4522
Roč. 32, JUN 2021 (2021), s. 14863-14873Number of pages 11 s. Language eng - English Country NL - Netherlands Keywords hydrogen evolution reaction ; reduced graphene oxide ; metal-oxides ; supercapacitor ; co ; electrocatalyst ; capacity ; carbons ; sulfide Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects EF16_019/0000778 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UFCH-W - RVO:61388955 UT WOS 000651704900001 EID SCOPUS 85106049987 DOI 10.1007/s10854-021-06039-6 Annotation Spinel oxide nanoparticles are considered one of the best candidates for manufacturing pseudocapacitor electrodes. In this regard, MnCo2O4 is synthesized and subsequently hybridized with reduced graphene oxide (rGO). The structure and morphology of the as-prepared materials are confirmed by X-ray diffraction spectroscopy, Raman spectroscopy, and microscopy techniques. The electrochemical analysis is performed by cyclic voltammetry, electrochemical impedance spectroscopy, and galvanostatic charge-discharge techniques. The results show that the addition of rGO to the MnCo2O4 has a good effect on specific capacitance, stability, and increasing the discharge time of the prepared electrode. MnCo2O4/rGO hybrid indicates a specific capacity of 702 F/g and significant stability of 94% during 5000 cycles. Thus, this material can be considered a very promising candidate for usage in the superconducting electrodes. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2022 Electronic address http://hdl.handle.net/11104/0320473
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