Green synthesis of hybrid papain/Ni3(PO4)2 rods electrocatalyst for enhanced oxygen evolution reaction

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dc.contributor.authorAhmed, Imtiaz
dc.contributor.authorBiswas, Rathindranath
dc.contributor.authorSingh, Harjinder
dc.contributor.authorPatil, Ranjit A.
dc.contributor.authorVarshney, Rohit
dc.contributor.authorPatra, Debabrata
dc.contributor.authorMa, Yuan-Ron
dc.contributor.authorHaldar, Krishna Kanta
dc.date.accessioned2024-01-21T10:33:04Z
dc.date.accessioned2024-08-13T11:16:18Z
dc.date.available2024-01-21T10:33:04Z
dc.date.available2024-08-13T11:16:18Z
dc.date.issued2022-10-21T00:00:00
dc.description.abstractHydrogen production using electrocatalytic water splitting provides encouraging innovations for enduring and clean energy generation as an option in contrast to traditional energy sources. Improvement in exceptionally dynamic electrocatalysts is of tremendous interest for work on the proficiency of gas generation, which has been emphatically blocked because of the sluggish kinetics of the oxygen evolution reaction (OER). We have synthesized a noble rod-shaped papain/Ni3(PO4)2 catalyst, which was further explored for electrocatalytic OER activity. An environmentally benign approach was applied to prepare binary papain/Ni3(PO4)2 in the presence of papain obtained from green papaya fruit. The yield of Ni3(PO4)2 rod structures could be controlled by varying the amount of papain extract during reaction conditions. The morphology and structural properties of the biogenic papain/Ni3(PO4)2 electrocatalyst were investigated with various microscopic and spectroscopic techniques, for example, FE-SEM, XRD, XPS, and FTIR. To show how such a papain/Ni3(PO4)2 hybrid structure could deliver more remarkable electrocatalytic OER activity, we inspected the correlation between catalytic demonstrations of the papain/Ni3(PO4)2 catalyst and its constituents, and the role of papain on its own was studied during the OER process. A biosynthesised papain/Ni3(PO4)2 catalyst exhibits excellent electrochemical OER performance with the smallest overpotentials of 217 mV, 319 mV and 431 mV in alkaline, neutral and acidic conditions, respectively, at 10 mA cm?2 current density. Transport of ions and electrons is also assisted by the long peptide backbone present in papain, which plays an important role in boosting OER activity. Our results reveal that papain/Ni3(PO4)2 shows better electrocatalytic OER execution along with cyclic stability compared to its different counterparts, owing to synergism-assisted enhancement by several amino acids from papain with metal ions in Ni3(PO4)2 � 2022 The Royal Society of Chemistry.en_US
dc.identifier.doi10.1039/d2nj03700a
dc.identifier.issn11440546
dc.identifier.urihttp://10.2.3.109/handle/32116/3256
dc.identifier.urlhttp://xlink.rsc.org/?DOI=D2NJ03700A
dc.language.isoen_USen_US
dc.publisherRoyal Society of Chemistryen_US
dc.subjectElectrocatalystsen_US
dc.subjectHydrogen productionen_US
dc.subjectMetal ionsen_US
dc.subjectMetalsen_US
dc.subjectOxygenen_US
dc.subjectPapainen_US
dc.subjectReaction kineticsen_US
dc.subjectdistilled wateren_US
dc.subjectnickelen_US
dc.subjectoxygenen_US
dc.subjectpapainen_US
dc.subjectplatinumen_US
dc.subjectClean energy generationen_US
dc.subjectElectrocatalyticen_US
dc.subjectEnergy sourceen_US
dc.subjectGas generationen_US
dc.subjectGreen synthesisen_US
dc.subjectReaction activityen_US
dc.subjectSluggish kineticsen_US
dc.subjectSynthesiseden_US
dc.subjectWater splittingen_US
dc.subject]+ catalysten_US
dc.subjectArticleen_US
dc.subjectcatalysten_US
dc.subjectchemical compositionen_US
dc.subjectchemical structureen_US
dc.subjectconductanceen_US
dc.subjectcontrolled studyen_US
dc.subjectcurrent densityen_US
dc.subjectcyclic voltammetryen_US
dc.subjectelectrochemical analysisen_US
dc.subjectelectron transporten_US
dc.subjectfield emission scanning electron microscopyen_US
dc.subjectFourier transform infrared spectroscopyen_US
dc.subjecthigh temperatureen_US
dc.subjectimpedance spectroscopyen_US
dc.subjectlinear sweep voltammetryen_US
dc.subjectoxygen enhancement ratioen_US
dc.subjectoxygen evolution reactionen_US
dc.subjectpapayaen_US
dc.subjectprecipitationen_US
dc.subjectRaman spectrometryen_US
dc.subjectsurface areaen_US
dc.subjectsynthesisen_US
dc.subjectvalence (chemistry)en_US
dc.subjectX ray diffractionen_US
dc.subjectX ray photoemission spectroscopyen_US
dc.subjectNickel compoundsen_US
dc.titleGreen synthesis of hybrid papain/Ni3(PO4)2 rods electrocatalyst for enhanced oxygen evolution reactionen_US
dc.title.journalNew Journal of Chemistryen_US
dc.typeArticleen_US
dc.type.accesstypeClosed Accessen_US

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