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Organic Semiconductor Electrocatalysts: Design Strategies, Reaction Mechanisms, and Application Prospects
Zhiqi Zhang1, Shicheng Du2, Shengli Zhu1,2
1School of Materials Science and Engineering, Tianjin University, Tianjin, P. R. China.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|December 24, 2025
Summary
Organic semiconductor electrocatalysts (OSEs) offer a sustainable, cost-effective alternative to noble metals. This review highlights their structure, design, and applications in key energy conversion reactions.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Noble metal catalysts are expensive and scarce.
- Organic semiconductor electrocatalysts (OSEs) offer a low-cost, earth-abundant alternative.
- OSEs combine organic semiconductor properties with electrocatalytic performance.
Purpose of the Study:
- To review the structural features of various organic material systems used as electrocatalysts.
- To elucidate the structure-activity relationships and catalytic advantages of OSEs.
- To explore design strategies and applications of OSEs in sustainable energy conversion.
Main Methods:
- Review of literature on organic semiconductor electrocatalysts.
- Analysis of structure-property relationships in small organic molecules, conjugated polymers, COFs, and hybrid materials.
- Discussion of molecular engineering and interface regulation strategies.
Main Results:
- Identified unique structural features of organic materials contributing to catalytic activity.
- Established structure-activity relationships for OSEs.
- Highlighted applications in hydrogen evolution (HER), oxygen evolution (OER), oxygen reduction (ORR), CO2 reduction (CO2RR), and nitrogen reduction (NRR).
Conclusions:
- OSEs demonstrate significant potential as sustainable catalysts for energy conversion.
- Design flexibility and earth abundance make OSEs promising alternatives.
- Further research is needed to address stability and scalability challenges for widespread adoption.
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