Engineered Ni�Fe prussian blue analogue nanocubes and their transformation into nanocages and mixed oxide for applications as bifunctional electrocatalyst

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dc.contributor.authorPal S.
dc.contributor.authorJana S.
dc.contributor.authorSingh D.K.
dc.contributor.authorGanesan V.
dc.contributor.authorAzad U.P.
dc.contributor.authorPrakash R.
dc.date.accessioned2025-01-13T07:07:09Z
dc.date.available2025-01-13T07:07:09Z
dc.date.issued2024
dc.description.abstract3D nanostructured Prussian blue analogues (PBA) are promising candidates in the family of metal-organic frameworks (MOFs) for applications as bifunctional electrocatalysts due to their open framework structures, high specific surface areas and variable metal active sites. Due to their facile synthesis approach and unique framework structures, these nanostructures can be easily transformed into different structures/materials having different compositions. Herein, we have synthesized Ni�Fe Prussian blue analogue nanocubes (NiFe-PBA-NC) via a simple precipitation method and converted them into Ni�Fe Prussian blue analogue nanocages (NiFe-PBA-NG) and porous mixed metal oxide (NiFe-oxide). For the conversion of nanocubes to nanocages a very controlled etching process is carried out by using an ammonia solution while for the formation of porous mixed metal oxide, nanocubes are annealed in the presence of air. The transformation of nanocubes to nanocages and mixed metal-oxide is thoroughly characterized by various spectroscopic and microscopic techniques and employed as a bifunctional electrocatalyst for oxygen evolution and oxygen reduction reactions (OER and ORR, respectively) in which NiFe-oxide proved to be the best bifunctional catalyst. This thorough and systematic study reveals the fundamentals of the structure-property co-relation towards engineering novel bifunctional electrocatalysts. � 2023 Hydrogen Energy Publications LLC
dc.identifier.doi10.1016/j.ijhydene.2023.08.020
dc.identifier.issn3603199
dc.identifier.urihttps://dl.bhu.ac.in/ir/handle/123456789/2642
dc.language.isoen
dc.publisherElsevier Ltd
dc.subjectBifunctional electrocatalyst
dc.subjectMixed oxide
dc.subjectNanocube
dc.subjectOxygen evolution reaction
dc.subjectOxygen reduction reaction
dc.titleEngineered Ni�Fe prussian blue analogue nanocubes and their transformation into nanocages and mixed oxide for applications as bifunctional electrocatalyst
dc.typeArticle
journal.titleInternational Journal of Hydrogen Energy
journalvolume.identifier.volume50

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