Recent Trends of Photoelectrochemical Water Splitting to Produce Clean Hydrogen

Chanmin Jo; Dong Kyu Lee; Uk Sim

doi:10.21218/CPR.2025.13.2.106

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2025 Vol.13, Issue 2 Preview Page

Recent Trends of Photoelectrochemical Water Splitting to Produce Clean Hydrogen 청정 수소 생산을 위한 PEC 물 분해 연구 동향

30 June 2025. pp. 106-118

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Abstract

The production of clean hydrogen represents a significant challenge in the context of efforts to reduce carbon emissions and facilitate the transition to sustainable energy sources. Among these various methods, hydrogen production through Photo-electrochemical (PEC) water splitting is regarded as a promising technology, as it employs solar energy to decompose water and generate hydrogen in an environmentally friendly method. To optimize the efficiency of PEC water splitting, it is crucial to select and design photoelectrodes and catalysts that are central to the reaction. PEC water splitting is a process that converts solar energy into electrical energy, facilitating the electrochemical breakdown of water into oxygen (O₂) and hydrogen (H₂). The formation of heterostructures, the application of nanomaterials, and the use of photoelectrode coatings have all been shown to significantly improve charge separation and light absorption efficiency. Additionally, catalyst surface modifications and integration have been demonstrated to suppress charge recombination and promote water oxidation reactions, thereby enhancing the characteristics and performance of PEC water splitting. These findings suggest the potential for developing high-efficiency, stable PEC systems and provide a path forward for advancing clean hydrogen production.

Keywords

Photoelectrochemistry

Renewable energy

Water splitting

Clean hydrogen

Hydrogen production

Solar to hydrogen

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Information

Publisher :Korea Photovoltaic Society
Publisher(Ko) :한국태양광발전학회
Journal Title :Current Photovoltaic Research
Volume : 13
No :2
Pages :106-118
Received Date : 2024-11-12
Revised Date : 2025-03-04
Accepted Date : 2025-03-05
DOI :https://doi.org/10.21218/CPR.2025.13.2.106

Current Photovoltaic Research ISSN:2288-3274(Print) 2508-125X(Online)

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