Abstract
Herein, we investigated the role of Pt metal cocatalyst and hydroxyl additives in the mechanism and activity of hydrogen evolution over the PCBM/PF3T organic nanohybrid. We show, for the first time, the addition of hydroxyl additives to improve the HER performance of the system, recording up to 70 mmol g-1h-1(AQY = 2.0%), which is among the best for an organic HER photocatalyst. The enhanced activity is explained by the binding of hydroxyl additives to Pt, funneling proton adsorption onto the Pt sites where more efficient H2formation occurs thereafter. These insights will be critical for future organic photocatalyst designs.
| Original language | English |
|---|---|
| Pages (from-to) | 7950-7955 |
| Number of pages | 6 |
| Journal | ACS Applied Energy Materials |
| Volume | 5 |
| Issue number | 7 |
| DOIs | |
| State | Published - 25 Jul 2022 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2022 American Chemical Society. All rights reserved.
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- density functional theory
- hydrogen evolution
- hydroxyl additives
- metal cocatalyst
- organic photocatalyst
ASJC Scopus subject areas
- Chemical Engineering (miscellaneous)
- Energy Engineering and Power Technology
- Electrochemistry
- Materials Chemistry
- Electrical and Electronic Engineering
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