Facile Fabrication of Ni9S8/Ag2S Intertwined Structures for Oxygen and Hydrogen Evolution Reactions

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dc.contributor.authorBiswas, Rathindranath
dc.contributor.authorAhmed, Imtiaz
dc.contributor.authorManna, Priyanka
dc.contributor.authorMahata, Partha
dc.contributor.authorDhayal, Rajendra S.
dc.contributor.authorSingh, Amol
dc.contributor.authorLahtinen, Jouko
dc.contributor.authorHaldar, Krishna Kanta
dc.date.accessioned2024-01-21T10:33:06Z
dc.date.accessioned2024-08-13T11:16:19Z
dc.date.available2024-01-21T10:33:06Z
dc.date.available2024-08-13T11:16:19Z
dc.date.issued2022-12-21T00:00:00
dc.description.abstractHere, we report the fabrication of the unique intertwined Ni9S8/Ag2S composite structure with hexagonal shape from their molecular precursors by one-pot thermal decomposition. Various spectroscopic and microscopic techniques were utilized to confirm the Ni9S8/Ag2S intertwined structure. Powder X-ray Powder Diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analysis suggest that there is an enrichment of Ni9S8 phase in Ni9S8/Ag2S. The presence of Ag2S in Ni9S8/Ag2S improves the conductivity by reducing the interfacial energy and charge transfer resistance. When Ni9S8/Ag2S is employed as an electrocatalyst for electrochemical oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) activity, it requires a low overpotential of 152 mV for HER and 277 mV for OER to obtain the geometrical current density of 10 mA cm?2, which is definitely superior to that of its components Ni9S8 and Ag2S. This work provides a simple design route to develop an efficient and durable electrocatalyst with outstanding OER and HER performance and the present catalyst (Ni9S8/Ag2S) deserves as a potential candidate in the field of energy conversion systems. � 2022 Wiley-VCH GmbH.en_US
dc.identifier.doi10.1002/cplu.202200320
dc.identifier.issn21926506
dc.identifier.urihttp://10.2.3.109/handle/32116/3264
dc.identifier.urlhttps://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cplu.202200320
dc.language.isoen_USen_US
dc.publisherJohn Wiley and Sons Incen_US
dc.subjectElectrocatalysisen_US
dc.subjecthydrogen evolution reactionen_US
dc.subjectinterfacial charge transferen_US
dc.subjectoxygen evolution reactionen_US
dc.subjectsulfidesen_US
dc.titleFacile Fabrication of Ni9S8/Ag2S Intertwined Structures for Oxygen and Hydrogen Evolution Reactionsen_US
dc.title.journalChemPlusChemen_US
dc.typeArticleen_US
dc.type.accesstypeClosed Accessen_US

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