Interfacial Engineering of V 2 O 5 via Conductive Polyaniline for Accelerated Hydrogen Evolution Reaction.
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| Title: | Interfacial Engineering of V 2 O 5 via Conductive Polyaniline for Accelerated Hydrogen Evolution Reaction. |
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| Authors: | Raorane, Chaitany Jayprakash1 (AUTHOR) chaitanyaraorane22@ynu.ac.kr, Kim, Seong-Cheol1 (AUTHOR) |
| Source: | Polymers (20734360). Jun2026, Vol. 18 Issue 11, p1408. 17p. |
| Subjects: | Hydrogen evolution reactions, Vanadium pentoxide, Electrodes, Nanostructured materials, Electrocatalysis, Polyanilines, Conducting polymer composites, Electrolysis |
| Abstract: | The hydrogen evolution reaction (HER) plays a pivotal role in electrochemical water splitting for sustainable hydrogen production. However, its practical implementation is hindered by sluggish kinetics and the reliance on costly noble-metal catalysts. In this work, a conductive polymer-inorganic hybrid electrode based on vanadium pentoxide (V2O5) and polyaniline (PANI) is rationally designed and fabricated on carbon cloth via a combined hydrothermal synthesis and electropolymerization strategy. Initially, hierarchical V2O5 nanoflowers were synthesized, followed by controlled PANI deposition through cyclic voltammetry at varying cycle numbers to tailor the interfacial architecture and electronic properties. Morphological and structural analyses reveal the formation of well-defined V2O5 nanoflowers uniformly decorated with PANI nanorods, establishing an interconnected conductive network. Among the prepared samples, the optimized V2O5-PANI-2 electrode exhibits superior interfacial integration and structural homogeneity. Electrochemical evaluation in 1.0 M KOH demonstrates that V2O5-PANI-2 achieves a low overpotential of 79.9 mV at −10 mA cm−2, accompanied by a small Tafel slope of 46.6 mV dec−1, indicating accelerated HER kinetics. Furthermore, the electrode shows reduced charge-transfer resistance and an enhanced electrochemically active surface area (ECSA), facilitating efficient charge transport and abundant active site exposure. The catalyst also delivers excellent durability, maintaining stable performance over 5000 CV cycles and prolonged 24 h operation. The enhanced HER performance is attributed to the synergistic interaction between V2O5 and the conductive PANI matrix, which promotes charge redistribution, improves electrical conductivity, and optimizes the adsorption/desorption energetics of hydrogen intermediates. [ABSTRACT FROM AUTHOR] |
| Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 194587672 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Interfacial Engineering of V 2 O 5 via Conductive Polyaniline for Accelerated Hydrogen Evolution Reaction. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Raorane%2C+Chaitany+Jayprakash%22">Raorane, Chaitany Jayprakash</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chaitanyaraorane22@ynu.ac.kr</i><br /><searchLink fieldCode="AR" term="%22Kim%2C+Seong-Cheol%22">Kim, Seong-Cheol</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Jun2026, Vol. 18 Issue 11, p1408. 17p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Hydrogen+evolution+reactions%22">Hydrogen evolution reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Vanadium+pentoxide%22">Vanadium pentoxide</searchLink><br /><searchLink fieldCode="DE" term="%22Electrodes%22">Electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Nanostructured+materials%22">Nanostructured materials</searchLink><br /><searchLink fieldCode="DE" term="%22Electrocatalysis%22">Electrocatalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Polyanilines%22">Polyanilines</searchLink><br /><searchLink fieldCode="DE" term="%22Conducting+polymer+composites%22">Conducting polymer composites</searchLink><br /><searchLink fieldCode="DE" term="%22Electrolysis%22">Electrolysis</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The hydrogen evolution reaction (HER) plays a pivotal role in electrochemical water splitting for sustainable hydrogen production. However, its practical implementation is hindered by sluggish kinetics and the reliance on costly noble-metal catalysts. In this work, a conductive polymer-inorganic hybrid electrode based on vanadium pentoxide (V2O5) and polyaniline (PANI) is rationally designed and fabricated on carbon cloth via a combined hydrothermal synthesis and electropolymerization strategy. Initially, hierarchical V2O5 nanoflowers were synthesized, followed by controlled PANI deposition through cyclic voltammetry at varying cycle numbers to tailor the interfacial architecture and electronic properties. Morphological and structural analyses reveal the formation of well-defined V2O5 nanoflowers uniformly decorated with PANI nanorods, establishing an interconnected conductive network. Among the prepared samples, the optimized V2O5-PANI-2 electrode exhibits superior interfacial integration and structural homogeneity. Electrochemical evaluation in 1.0 M KOH demonstrates that V2O5-PANI-2 achieves a low overpotential of 79.9 mV at −10 mA cm−2, accompanied by a small Tafel slope of 46.6 mV dec−1, indicating accelerated HER kinetics. Furthermore, the electrode shows reduced charge-transfer resistance and an enhanced electrochemically active surface area (ECSA), facilitating efficient charge transport and abundant active site exposure. The catalyst also delivers excellent durability, maintaining stable performance over 5000 CV cycles and prolonged 24 h operation. The enhanced HER performance is attributed to the synergistic interaction between V2O5 and the conductive PANI matrix, which promotes charge redistribution, improves electrical conductivity, and optimizes the adsorption/desorption energetics of hydrogen intermediates. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/polym18111408 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 1408 Subjects: – SubjectFull: Hydrogen evolution reactions Type: general – SubjectFull: Vanadium pentoxide Type: general – SubjectFull: Electrodes Type: general – SubjectFull: Nanostructured materials Type: general – SubjectFull: Electrocatalysis Type: general – SubjectFull: Polyanilines Type: general – SubjectFull: Conducting polymer composites Type: general – SubjectFull: Electrolysis Type: general Titles: – TitleFull: Interfacial Engineering of V 2 O 5 via Conductive Polyaniline for Accelerated Hydrogen Evolution Reaction. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Raorane, Chaitany Jayprakash – PersonEntity: Name: NameFull: Kim, Seong-Cheol IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20734360 Numbering: – Type: volume Value: 18 – Type: issue Value: 11 Titles: – TitleFull: Polymers (20734360) Type: main |
| ResultId | 1 |
