水から光に駆動された水素生成のための染料感受性光電化学タンデムセル
Benjamin D Sherman1, Matthew V Sheridan1, Kyung-Ryang Wee1
1Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States.
Journal of the American Chemical Society
|December 16, 2016
まとめ
この研究では,染料感受性光電化学セル (DSPEC) と染料感受性太陽電池 (DSC) を用いたタンデム光電化学分水システムを開発した. 最高のコンフィギュレーションは,太陽光のみを用いて水から水素を生成することを示した.
科学分野:
- 材料科学
- 再生可能エネルギー
- 写真化学
背景:
- タンデム・ジャンクション・フォト電気化学的水分分離装置は,複数の吸光器を使用することで,単一の吸光器システムよりも高い効率を提供します.
- 効率的な水素生成は再生可能エネルギー技術にとって不可欠です
研究 の 目的:
- タンデム光電化学水分裂システムを開発し評価する.
- 染料に敏感な光電化学セル (DSPEC) と染料に敏感な太陽電池 (DSC) の性能を調査する.
主な方法:
- ルテニウムベースの水酸化触媒とDSCを含むタンデムシステムの製造.
- DSCの2つの変異を試験する.一つはN719染料とヨウ素/三ヨウ素媒介体,もう一つはD35染料とコバルト (III/II) ビピリジン媒介体.
- 模擬太陽光照明を使用して水から水素の生産を評価する.
主要な成果:
- DSPECとD35/コバルト (III/II) ビピリジンDSCを使用したタンデム構成は最高性能を示した.
- 水 (H2O) から水素 (H2) を効率的に生成することが実証されている.
結論:
- タンデム染料感受システムは,光電気化学的な水分裂に有効です.
- 開発されたDSPEC-DSCタンデム装置は,太陽光発電による水素燃料生産に希望を示しています.
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