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Enhanced carbon dioxide electrolysis at redox manipulated interfaces.
Wenyuan Wang1, Lizhen Gan1,2, John P Lemmon3
1Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China.
Nature Communications
|April 6, 2019
Summary
Interface engineering enhances carbon dioxide electrolysis by creating nanoscale active sites. This approach improves the efficiency and durability of solid oxide electrolysis for reducing industrial carbon dioxide emissions.
Area of Science:
- Materials Science
- Electrochemistry
- Chemical Engineering
Background:
- Carbon dioxide (CO2) electrolysis from industrial waste streams can significantly reduce global emissions.
- Solid oxide electrolysis offers high efficiency and heat utilization but requires refinement for CO2 electrolysis.
- Interfacial properties critically impact the performance and longevity of energy materials.
Purpose of the Study:
- To develop a generic interface engineering approach for nanoscale active interfaces in CO2 electrolysis.
- To enhance the efficiency and durability of solid oxide electrolysis for CO2 conversion.
Main Methods:
- Synergistic control of material functions and interface architectures.
- Employing redox-manipulated interfaces for atomic oxygen transfer.
- Developing composite cathodes with in situ grown interfaces.
Main Results:
- Achieved active interfaces at the nanoscale through engineered architectures.
- Demonstrated facilitated atomic oxygen transfer from CO2 to the cathode lattice.
- Observed significantly enhanced CO2 electrolysis performance and improved durability.
Conclusions:
- Interface engineering is a viable strategy for advancing CO2 electrolysis technology.
- Redox-manipulated nanoscale interfaces are key to efficient CO2 conversion.
- Composite cathodes with in situ grown interfaces show promise for industrial CO2 emission reduction.
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