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Author: search.filters.author.Chiu, Te WeiSubject: search.filters.subject.Electrocatalyst

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    Renewable and sustainable green energy generation using Bi-functional TMOs decorated layered carbon nitride anchored on MXene for oxygen evolution reactions and urea oxidation reaction performance
    (2025-12-01)
    Vasu, Dhanapal
    ;
    Vittayakorn, Naratip
    ;
    Chang, Shih Hsien
    ;
    Lin, Kai Hsuan
    ;
    Chiu, Te Wei
    This article presents a comprehensive evaluation of a novel V<inf>2</inf>O<inf>5</inf>–graphitic carbon nitride (gCN)/MXene (Ti<inf>3</inf>C<inf>2</inf>Tx) composite (VGM) electrocatalyst, designed to enhance the oxygen evolution reaction (OER) and urea oxidation reaction (UOR). The VGM material was synthesized through a combination of hydrofluoric acid (HF) etching and thermal polymerization, offering a new approach for integrating transition metal oxides with 2D materials. Structural and surface analyses confirmed the successful formation of the hybrid catalyst with well-defined morphology and composition. Electrochemical studies revealed an impressively low overpotential of 151 mV and a Tafel slope of 95 mV/dec for OER, indicating excellent catalytic efficiency. The hybrid structure synergistically combines the high redox activity of V<inf>2</inf>O<inf>5</inf>, the large surface area of gCN, and the conductivity of MXene, leading to superior electrochemical performance. Additionally, the catalyst effectively drives the UOR, enabling simultaneous hydrogen generation and urea-rich wastewater remediation. This work introduces a cost-effective and multifunctional electrocatalyst design strategy, offering both energy and environmental benefits.