Honeycomb micro/nano-architecture of stable β-NiMoO4 electrode/catalyst for sustainable energy storage and conversion devices

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dc.check.date2021-08-30
dc.check.infoAccess to this article is restricted until 12 months after publication by request of the publisher.en
dc.contributor.authorPadmanathan, Narayanasamy
dc.contributor.authorShao, Han
dc.contributor.authorRazeeb, Kafil M.
dc.contributor.funderHorizon 2020en
dc.date.accessioned2020-09-09T07:39:10Z
dc.date.available2020-09-09T07:39:10Z
dc.date.issued2020-08-30
dc.date.updated2020-09-09T07:30:42Z
dc.description.abstractMulti-functionality is a highly desirable feature in designing new electrode material for both energy storage and conversion devices. Here, we report a well-integrated and stable β-NiMoO4 that was fabricated on three dimensional (3D) nickel foam (NF) by a simple hydrothermal approach. The obtained β-NiMoO4 with interesting honeycomb like interconnected nanosheet microstructure leads to excellent electrochemical activity. As an electrode for Supercapatteries, β-NiMoO4–NF showed a high specific capacity of 178.2 mA h g−1 (916.4 F g−1) at 5 mA cm−2 current density. Most importantly, the fabricated symmetric device exhibits a maximum specific energy of 35.8 W h kg−1 with the power output of 981.56 W kg-1 and excellent cyclic stability. In methanol electro-oxidation, the β-NiMoO4 –NF catalyst deliver the high current density of 41.8 mA cm−2 and much lower onset potential of 0.29 V with admirable long term stability. Apart from the above electrochemical activity, the β-NiMoO4 –NF honeycomb microstructure demonstrates a promising non-noble electrocatalyst for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) and showed a considerable overpotential of 351 mV (OER) and 238 mV (HER). The attractive multifunctional electrochemical activity of β-NiMoO4–NF could be originates from their unique honeycomb micro/nano structure which can acts as an “ion reservoir” and thus leads to superior energy storage and conversion processes.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPadmanathan, N., Shao, H. and Razeeb, K. M. (2020) 'Honeycomb micro/nano-architecture of stable β-NiMoO4 electrode/catalyst for sustainable energy storage and conversion devices', International Journal of Hydrogen Energy. doi: 10.1016/j.ijhydene.2020.08.058en
dc.identifier.doi10.1016/j.ijhydene.2020.08.058en
dc.identifier.issn0360-3199
dc.identifier.journaltitleInternational Journal of Hydrogen Energyen
dc.identifier.urihttps://hdl.handle.net/10468/10488
dc.language.isoenen
dc.publisherElsevier B.V.en
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::RIA/825114/EU/Smart Autonomous Multi Modal Sensors for Vital Signs Monitoring/SmartVistaen
dc.rights© 2020, Elsevier B.V. All rights reserved. This manuscript version is made available under the CC BY-NC-ND 4.0 license.en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectElectro-oxidationen
dc.subjectElectrodeen
dc.subjectOverpotentialen
dc.subjectSpecific capacityen
dc.subjectSupercapatteriesen
dc.titleHoneycomb micro/nano-architecture of stable β-NiMoO4 electrode/catalyst for sustainable energy storage and conversion devicesen
dc.typeArticle (peer-reviewed)en
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