Synthesis of CuInS2 thin film photocathode with variation of sulfurization sources and Pt-In2S3 modification for photoelectrochemical water splitting

Gunawan, Gunawan; Wijaya, Roni; Suseno, Ahmad; Lusiana, Retno Ariadi; Septina, Wilman; Harada, Takashi

doi:10.1016/j.jelechem.2023.117683

Cited by 5 publications

(1 citation statement)

References 51 publications

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“…CuInS 2 is a promising semiconductor photocatalyst because it possesses the ability to absorb visible light, which is a predominant component of solar radiation. Thus, CuInS 2 has shown potential for application across a range of fields, including the photocatalytic splitting of water for hydrogen production, the photocatalytic reduction of CO 2 , and the degradation of organic pollutants under photocatalytic conditions [ 23 , 24 , 25 , 26 , 27 ]. ZnIn 2 S 4 and CuInS 2 are both ternary sulfides that have similar morphologies and structures, and they exhibit a high degree of lattice matching.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Photocatalytic Activities for Sustainable Hydrogen Evolution on Structurally Matched CuInS2/ZnIn2S4 Heterojunctions

Li,

Liao,

Shen

et al. 2024

Molecules

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Effective charge separation and migration pose a critical challenge in the field of solar-driven hydrogen production. In this work, a Z-scheme structured CuInS2/ZnIn2S4 heterojunction was successfully fabricated through a two-step hydrothermal synthesis method to significantly enhance the efficiency of solar-to-hydrogen energy conversion. Structural characterization revealed that the lattice-matched CuInS2/ZnIn2S4 heterojunction exhibits an enlarged interfacial contact area, which facilitates the transfer and separation of photogenerated charges. Microscopic analysis indicated that the CuInS2/ZnIn2S4 composite material has a tightly interwoven interface and a morphology resembling small sugar cubes. Photoelectrochemical spectroscopy analysis demonstrated that the heterojunction structure effectively enhances visible light absorption and charge separation efficiency, leading to an improvement in photocatalytic activity. Hydrogen production experimental data indicated that the CuInS2/ZnIn2S4 heterojunction photocatalyst prepared with a CuInS2 content of 20 wt% exhibits the highest hydrogen evolution rate, reaching 284.9 μmol·g−1·h−1. Moreover, this photocatalyst maintains robust photocatalytic stability even after three consecutive usage cycles. This study demonstrated that the Z-scheme CuInS2/ZnIn2S4 heterojunction photocatalyst exhibits enhanced hydrogen evolution efficiency, offering an effective structural design for harnessing solar energy to obtain hydrogen fuel. Therefore, this heterojunction photocatalyst is a promising candidate for practical applications in solar hydrogen production.

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Section: Introductionmentioning

confidence: 99%

Enhancing Photocatalytic Activities for Sustainable Hydrogen Evolution on Structurally Matched CuInS2/ZnIn2S4 Heterojunctions

Li,

Liao,

Shen

et al. 2024

Molecules

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Investigation of Grain Growth in Chalcopyrite CuInS₂ Photoelectrodes Synthesized under Wet Chemical Conditions for Bias‐Free Photoelectrochemical Water Splitting

Chae,

Yoon,

Jun

et al. 2024

Solar RRL

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Photoelectrochemical (PEC) cells offer a promising method for producing green hydrogen through the splitting of water using solar energy. However, the cost‐effective synthesis of highly crystalline p‐type semiconductor materials for PEC cells remains a significant challenge for industrial applications. Herein, a CuInS2 photoelectrode is fabricated using a scalable and economical wet chemical spin‐coating technique. To enhance the crystallinity and photoelectrochemical activity of the photoelectrode, the grain size is precisely controlled by adjusting the atomic ratio, thickness, morphology, and Ag doping. Evaluating a novel growth mechanism of CuInS2 from Cu–In–O reveals that Ag doping significantly promotes grain growth. Consequently, the CuInS2 photocathode achieves one of the highest photoelectrochemical activities (−9.8 mA cm−2 at 0 VRHE) reported for CuInS2 photoelectrodes synthesized via wet chemical methods. Bias‐free water splitting is achieved using a CuInS2‐based photoelectrode in a photovoltaic–PEC cell configuration. These results highlight the potential of CuInS2, prepared through wet chemical methods, for cost‐effective photoelectrochemical water splitting.

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Development of a novel hybrid hydrogen generator incorporated into a combined system for buildings in sustainable communities

Gursoy,

Dincer

2024

Energy and Buildings

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Synthesis of CuInS2 thin film photocathode with variation of sulfurization sources and Pt-In2S3 modification for photoelectrochemical water splitting

Cited by 5 publications

References 51 publications

Enhancing Photocatalytic Activities for Sustainable Hydrogen Evolution on Structurally Matched CuInS2/ZnIn2S4 Heterojunctions

Enhancing Photocatalytic Activities for Sustainable Hydrogen Evolution on Structurally Matched CuInS2/ZnIn2S4 Heterojunctions

Investigation of Grain Growth in Chalcopyrite CuInS₂ Photoelectrodes Synthesized under Wet Chemical Conditions for Bias‐Free Photoelectrochemical Water Splitting

Development of a novel hybrid hydrogen generator incorporated into a combined system for buildings in sustainable communities

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Synthesis of CuInS2 thin film photocathode with variation of sulfurization sources and Pt-In2S3 modification for photoelectrochemical water splitting

Cited by 5 publications

References 51 publications

Enhancing Photocatalytic Activities for Sustainable Hydrogen Evolution on Structurally Matched CuInS2/ZnIn2S4 Heterojunctions

Enhancing Photocatalytic Activities for Sustainable Hydrogen Evolution on Structurally Matched CuInS2/ZnIn2S4 Heterojunctions

Investigation of Grain Growth in Chalcopyrite CuInS2 Photoelectrodes Synthesized under Wet Chemical Conditions for Bias‐Free Photoelectrochemical Water Splitting

Development of a novel hybrid hydrogen generator incorporated into a combined system for buildings in sustainable communities

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Product

Resources

About

Investigation of Grain Growth in Chalcopyrite CuInS₂ Photoelectrodes Synthesized under Wet Chemical Conditions for Bias‐Free Photoelectrochemical Water Splitting