金属様CoCeOxとCdSのショットキー接合構築による安定な光触媒水素生成性能
Construction of Schottky Junction Between Metallic-Like CoCeOx and CdS for Stable Photocatalytic Hydrogen Production Performance (原題)
Lei Minjun, Ding Lu, Jin Zhiliang
🤖 gxceed AI 要約
日本語
本研究は、金属様のCoCeOxとCdSのショットキー接合により、光生成キャリアの分離と輸送を促進し、水素生成効率と安定性を向上させた。界面の内蔵電界が電子と正孔の空間分離を実現し、キャリア再結合を抑制する。最適化したCdS/CoCeOx複合材料は、光触媒水分解水素生成において優れた活性とサイクル安定性を示した。太陽エネルギー変換のための高効率・安定な複合光触媒設計に新たな知見を提供する。
English
This study constructs a Schottky junction between metallic-like CoCeOx and CdS, facilitating charge separation and transport, thereby enhancing photocatalytic hydrogen production efficiency and stability. The interfacial built-in electric field enables spatial separation of electrons and holes, suppressing recombination. The optimized CdS/CoCeOx composite exhibits significantly improved hydrogen evolution rate and excellent cycling stability. This work provides new insights for designing efficient and stable composite photocatalysts for solar energy conversion.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本の水素社会実現に向けたグリーン水素製造技術の一つとして、光触媒材料の高性能化は重要。本研究は、材料開発の基礎研究であり、将来的な太陽光水素製造の実用化に寄与する可能性がある。日本の水素戦略や再エネ拡大の文脈で、長期的な技術シーズとして注目される。
In the global GX context
This fundamental materials science research contributes to the global push for green hydrogen production via solar energy. While not directly linked to disclosure frameworks, it underpins the technological feasibility of renewable hydrogen, which is critical for decarbonization pathways and transition finance. The findings may inform future scale-up and cost reduction in hydrogen production, relevant to global energy transition goals.
👥 読者別の含意
🔬研究者:Provides a novel strategy for enhancing photocatalytic hydrogen production via Schottky junctions, relevant for solar fuel research.
📄 Abstract（原文）
The ultraviolet spectrum and theoretical band indicated that the CoCeOx component exhibited metal-like characteristics, forming a good Schottky junction with CdS. This Schottky junction establishes an interfacial built-in electric field, offering a powerful driving force for the separation and transport of photogenerated carriers. Specifically, under light excitation, the electrons generated by CdS can be rapidly and directionally transferred through the metal-like channels of CoCeOx, while the holes remain in the valence band of CdS, achieving effective spatial separation of electrons and holes, significantly inhibiting the loss of carrier recombination. Meanwhile, the intimate and robust interface between CoCeOx and CdS facilitates efficient charge transfer and simultaneously improves the structural durability of the hybrid catalyst under long-term photocatalytic conditions. Experimental results showed that the optimized CdS/CoCeOx composite material exhibited significantly improved hydrogen production rate and excellent cycling stability in the photocatalytic water decomposition hydrogen production reaction, with no significant performance decline in multiple hydrogen production tests. This study demonstrates a Schottky-junction-based strategy to regulate photogenerated charge behavior. It also offers new insights and experimental foundations for designing efficient, stable composite photocatalysts for solar energy conversion.
🔗 Provenance — このレコードを発見したソース
- scidb https://doi.org/10.57760/sciencedb.00zrlfirst seen 2026-09-04 06:10:46 · last seen 2026-09-16 05:43:30
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