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Synthesis and characterization NS-reduced graphene oxide hydrogel and its electrochemical properties

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dc.contributor.authorNugroho A.en_US
dc.contributor.authorErviansyah F.en_US
dc.contributor.authorFloresyona D.en_US
dc.contributor.authorMahalingam S.en_US
dc.contributor.authorManap A.en_US
dc.contributor.authorAfandi N.en_US
dc.contributor.authorLau K.S.en_US
dc.contributor.authorChia C.H.en_US
dc.contributor.authorid6701506290en_US
dc.contributor.authorid57748017800en_US
dc.contributor.authorid56515349400en_US
dc.contributor.authorid55434075500en_US
dc.contributor.authorid57200642155en_US
dc.contributor.authorid57189231851en_US
dc.contributor.authorid57196329217en_US
dc.contributor.authorid57215089308en_US
dc.date.accessioned2023-05-29T09:37:15Z
dc.date.available2023-05-29T09:37:15Z
dc.date.issued2022
dc.description.abstractDeveloping materials with good electrochemical performance is critical in energy storage applications. One of the promising materials for these applications is reduced graphene oxide (rGO) based materials. Utilizing thiourea as a nitrogen (N) and sulfur (S) source, we present a simple hydrothermal approach for simultaneous doping of nitrogen and sulfur into the rGO hydrogel structure. The visual photograph shows the hydrogel form of the sample. XRD and Raman analysis shows the carbon structural changes during the reduction process. The presence of N and S atoms which spread evenly on the hydrogel structure, was confirmed by energy-dispersive x-ray (EDX) mapping. A cyclic voltammetry measurement at a current density of 0.5 A / g reveals that the NS-rGOH sample has a high specific capacity of 750 C / g. Even at a current density of 10 A / g, it can maintain outstanding charge-discharge stability, with 83.3 % of the initial capacity preserved after 1000 charge-discharge cycles. Moreover, EIS analysis reveals that the low charge transfer resistance and high ionic diffusivity of the rGO hydrogel sample lead to good electrochemical performance. NS doping into the rGOH structure improves the sample's electrochemical performance compared to the undoped sample. � 2022, Institute for Metals Superplasticity Problems of Russian Academy of Sciences. All rights reserved.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.22226/2410-3535-2022-2-169-174
dc.identifier.epage174
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85132174265
dc.identifier.spage169
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85132174265&doi=10.22226%2f2410-3535-2022-2-169-174&partnerID=40&md5=aaa02b6fb70ae6daeba89bf34bb58df8
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/26855
dc.identifier.volume12
dc.publisherInstitute for Metals Superplasticity Problems of Russian Academy of Sciencesen_US
dc.relation.ispartofAll Open Access, Bronze
dc.sourceScopus
dc.sourcetitleLetters on Materials
dc.titleSynthesis and characterization NS-reduced graphene oxide hydrogel and its electrochemical propertiesen_US
dc.typeArticleen_US
dspace.entity.typePublication
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