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Recent progress in polyaniline-based catalysts for electrochemical energy conversion.
1College of Materials Science and Engineering, Sichuan University, Chengdu 610065, China. ligaoren@scu.edu.cn.
Nanoscale
|June 23, 2025
Summary
Polyaniline (PANI)-based catalysts offer a low-cost, high-performance alternative to expensive platinum for crucial electrochemical reactions. This review explores PANI
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Platinum (Pt) catalysts are effective but expensive for electrochemical energy conversion.
- Noble metal-free electrocatalysts are urgently needed for widespread application.
- Polyaniline (PANI) has emerged as a promising material for catalyst development.
Purpose of the Study:
- To review the catalytic performance of PANI-based catalysts in various electrochemical reactions.
- To highlight PANI's properties that enhance catalytic activity and stability.
- To discuss strategies for improving PANI composite catalysts and identify future challenges.
Main Methods:
- Literature review of PANI-based catalysts in electrochemical reactions.
- Analysis of PANI's properties: redox activity, conductivity, stability, cost, and synthesis.
- Discussion of catalytic mechanisms and strategies for performance enhancement.
Main Results:
- PANI serves as an effective support, enhancing catalytic performance due to its unique properties.
- PANI-based catalysts show potential in oxygen evolution (OER), hydrogen evolution (HER), oxygen reduction (ORR), and CO2 reduction (CO2RR).
- Strategies include enhancing intrinsic activity of active sites and increasing active surface area.
Conclusions:
- PANI is a versatile and cost-effective material for developing advanced electrocatalysts.
- Further research is needed to address the limitations of PANI composite catalysts for specific reactions.
- Optimizing PANI composites will be key for efficient electrochemical energy conversion.
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