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Functional carbon nitride materials for water oxidation: from heteroatom doping to interface engineering
Huayang Zhang1, Wenjie Tian, Xiaoguang Duan
1School of Chemical Engineering and Advanced Materials, The University of Adelaide, North Terrace, Adelaide, SA 5005, Australia. shaobin.wang@adelaide.edu.au.
Nanoscale
|March 21, 2020
Summary
Polymeric carbon nitrides (PCNs) are eco-friendly catalysts for water oxidation. Tailoring their structure via doping and hybridization enhances photocatalytic and electrocatalytic performance for efficient water splitting.
Area of Science:
- Materials Science
- Catalysis
- Renewable Energy
Background:
- Polymeric carbon nitrides (PCNs) are sustainable materials with tunable structures, ideal for catalysis.
- PCNs are cost-effective and synthesized from abundant resources, making them attractive for water oxidation.
Purpose of the Study:
- To review strategies for enhancing PCNs in photocatalytic, electrocatalytic, and photoelectrochemical water oxidation.
- To establish structure-activity correlations for PCN-based water oxidation catalysts.
- To provide a roadmap for designing improved PCN catalysts and identify future challenges.
Main Methods:
- Review of state-of-the-art tailoring strategies for PCNs.
- Analysis of heteroatom doping and interface engineering techniques.
- Examination of hybridization with nanoscale and sub-nanoscale cocatalysts.
Main Results:
- Heteroatom doping and interface engineering significantly improve PCN catalytic efficiency.
- Hybridization with various cocatalysts (nanoscale to single-atom) enhances water oxidation performance.
- Structure-activity correlations provide insights into catalyst design.
Conclusions:
- PCNs offer a promising platform for efficient water oxidation catalysis.
- Strategic modifications of PCNs are key to unlocking their full potential.
- Further research is needed to address challenges and optimize PCN applications in water splitting.
