| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2026-02-20 |
| タイトル |
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タイトル |
Improvement of performance to form syngas utilizing water and CO2 over a particulate-Cu0.8Ag0.2GaS2-based photocathode by surface co-modification with ZnS and Ag |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
open access |
| 著者 |
高山, 大鑑
Iwase, Akihide
Kudo, Akihiko
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Surface of a particulate-Cu0.8Ag0.2GaS2-based photocathode was co-modified with ZnS and Ag, resulting in improvement in the performance of the Cu0.8Ag0.2GaS2 photocathode for syngas (H2 + CO) formation through photoelectrochemical H2O and CO2 reduction under visible light in an aqueous electrolyte. Bubbles of the syngas were visually observed over the developed Ag and ZnS-co-modified Cu0.8Ag0.2GaS2 photocathode at 0 V vs. RHE at the applied potential using a 300 W Xe-arc lamp (λ > 420 nm). Based on various control experiments and characterization studies, the following two crucial factors have arisen: (1) formation of a (ZnS)–(Cu0.8Ag0.2GaS2) solid-solution near the surface of Cu0.8Ag0.2GaS2 particles was vital for enhancing the separation of the photogenerated carriers, (2) the Ag cocatalyst loaded on the solid-solution worked as an active site for photoelectrochemical CO2 reduction. Moreover, artificial photosynthetic syngas formation using water as an electron donor under simulated sunlight without any external bias was demonstrated by combining the developed Ag/ZnS/Cu0.8Ag0.2GaS2 photocathode with a CoOx-loaded BiVO4 photoanode. |
| 書誌情報 |
en : Sustainable Energy and Fuels
巻 9,
号 7,
p. 1709-1716,
発行日 2025-01-27
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| 出版者 |
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出版者 |
The Royal Society of Chemistry |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
2398-4902 |
| 出版者版DOI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1039/D4SE01738B |
| 出版者版URI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
URI |
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関連識別子 |
https://pubs.rsc.org/en/content/articlehtml/2025/se/d4se01738b |
| 権利 |
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権利情報Resource |
https://creativecommons.org/licenses/by-nc/3.0/ |
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権利情報 |
This journal is © The Royal Society of Chemistry 2025.This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. |
| 著者版フラグ |
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出版タイプ |
VoR |
| 助成情報 |
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助成機関名 |
Ministry of Education, Culture, Sports, Science and Technology (MEXT) |
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研究課題番号 |
17H06440 |
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研究課題番号URI |
https://kaken.nii.ac.jp/ja/grant/KAKENHI-PLANNED-17H06440/ |
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研究課題名 |
水を電子源とする高効率・高選択的二酸化炭素還元系の開発 |
| 助成情報 |
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助成機関名 |
Ministry of Education, Culture, Sports, Science and Technology (MEXT) |
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研究課題番号 |
17H06433 |
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研究課題番号URI |
https://kaken.nii.ac.jp/ja/grant/KAKENHI-ORGANIZER-17H06433/ |
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研究課題名 |
光合成分子機構の学理解明と時空間制御による革新的光ー物質変換系の創製（総括班） |
| 助成情報 |
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助成機関名 |
Ministry of Education, Culture, Sports, Science and Technology (MEXT) |
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研究課題番号 |
23H00248 |
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研究課題番号URI |
https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-23H00248/ |
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研究課題名 |
水を電子源とした光触媒的二酸化炭素還元における選択的多電子還元反応場の構築 |
| 助成情報 |
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助成機関名 |
Ministry of Education, Culture, Sports, Science and Technology (MEXT) |
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研究課題番号 |
16K17948 |
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研究課題番号URI |
https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-16K17948/ |
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研究課題名 |
太陽光を利用してH2OとCO2から合成ガスを生成する人工光合成型光電極系の創出 |
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