Work

Dandelion‐Like CuWO 4 /WO 3 Composite Photoanode Employing Layered Double Hydroxide Catalysts for Enhanced Photoelectrochemical Water Oxidation

Year: 2025

Type: article

Abstract: This study introduces a novel modified dandelion‐like CuWO 4 /WO 3 heterojunction photoanode featuring NiCo‐layered double hydroxide (NiCo‐LDH) as a co‐catalyst, fabricated through hydrothermal and drop casting methods. Morphological and photoelectrochemical assessments elucidate that the optimal dandelion‐like CuWO 4 /WO 3 heterojunction facilitates charge separation in a neutral solution. Additionally, electrochemical evaluations of the CuWO 4 /WO 3 heterojunction decorated with LDHs co‐catalysts reveal enhancements in photon‐to‐current conversion efficiency (IPCE), cathodic shift of the photocurrent onset potential, and an increase in photocurrent density to 0.17 mA cm −2 at 1.23 V vs. RHE, which is twice that of the pristine photoanode under neutral pH conditions. The improved performance of the modified photoanode is attributed to the accelerated diffusion of reactants and products, as well as efficient proton‐coupled electron transfer processes facilitated by the presence of LDHs.

Source: ChemSusChem

DOI: 10.1002/cssc.202502130

Authors: Sima Nouhi, Michael Wark, Dereje Hailu Taffa

Institution: Carl von Ossietzky Universität Oldenburg

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $4,550