Novel anodic WO3-SeO2-CuO photoelectrode operating under solar illumination for water-splitting applications

IF 7.9 2区工程技术 Q1 CHEMISTRY, PHYSICAL

Journal of Power Sources Pub Date : 2025-03-07 DOI:10.1016/j.jpowsour.2025.236656

Karolina Syrek , Marta Zych , Marcin Pisarek , Łukasz Gondek , Magdalena Gurgul , Renata Palowska , Lifeng Liu , Grzegorz D. Sulka

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引用次数: 0

Abstract

Anodic tungsten oxide-based materials were tested as photoanodes in photoelectrochemical (PEC) water-splitting experiments. For the first time, we present the effect of selenization on the morphology, composition, and PEC properties of WO₃-W₁₈O₄₉ and WO₃-WSe₂ materials. Additionally, these substrates underwent copper electrodeposition followed by re-annealing to form novel, highly efficient WO₃-SeO₂-CuO composite photoelectrodes. A comprehensive investigation of their morphology, chemical composition, optical properties, and photoelectrochemical performance was conducted based on the data gathered from Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), X-ray Diffraction (XRD), Raman Spectroscopy (RS), X-ray Photoelectron Spectroscopy (XPS), UV–Vis Diffuse Reflectance Spectroscopy (UV–Vis DRS), Mott-Schottky analysis, and PEC experiments. Results showed that the heterojunction-based electrode exhibited two fold increase in the PEC response of the photoanode before modification with copper compounds and nearly seven times the response of WO₃-CuO materials.

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在太阳光照下工作的新型阳极WO3-SeO2-CuO光电极用于水分解

在光电化学（PEC）水分解实验中，对阳极氧化钨基材料作为光阳极进行了测试。本文首次研究了硒化对WO3-W18O49和WO3-WSe2材料的形貌、组成和PEC性能的影响。此外，这些衬底经过铜电沉积，然后再退火，形成新的，高效的WO3-SeO2-CuO复合光电极。利用扫描电镜（SEM）、能谱（EDS）、x射线衍射（XRD）、拉曼光谱（RS）、x射线光电子能谱（XPS）、UV-Vis漫反射光谱（UV-Vis DRS）、莫特-肖特基分析（Mott-Schottky）和PEC实验等数据，对其形貌、化学成分、光学性质和光电化学性能进行了全面的研究。结果表明，铜修饰前异质结电极的光电阳极的PEC响应提高了2倍，WO3-CuO材料的响应提高了近7倍。

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来源期刊

Journal of Power Sources 工程技术-电化学

CiteScore

16.40

自引率

6.50%

发文量

1249

审稿时长

36 days

期刊介绍： The Journal of Power Sources is a publication catering to researchers and technologists interested in various aspects of the science, technology, and applications of electrochemical power sources. It covers original research and reviews on primary and secondary batteries, fuel cells, supercapacitors, and photo-electrochemical cells. Topics considered include the research, development and applications of nanomaterials and novel componentry for these devices. Examples of applications of these electrochemical power sources include: • Portable electronics • Electric and Hybrid Electric Vehicles • Uninterruptible Power Supply (UPS) systems • Storage of renewable energy • Satellites and deep space probes • Boats and ships, drones and aircrafts • Wearable energy storage systems