Gas phase electrochemical conversion of humidified CO2 to CO and H2 on proton-exchange and alkaline anion-exchange membrane fuel cell reactors
Abstract
© 2017 Fuel cell reactors or electrolyzers based on alkaline anion-exchange membrane and proton exchange membrane (AAEM & PEM) are investigated for gas phase electrochemical conversion of humidified CO 2 under identical conditions, using conventional Pt/C, Pd/C and Cu/CNTs as cathodic catalysts. Humidified CO 2 can be converted to H 2 and CO via the AAEM based fuel cell reactors with an estimated onset potential of -1.0 V using Cu/CNT as cathodic catalyst, while PEM based fuel cell reactors can only produce H 2 under identical conditions. This can be attributed to the suppressed hydrogen evolution and enhanced CO 2 reduction in the case of AAEM based reactor. Remarkably, AAEM based reactor with Cu/CNT cathode catalysts shows a higher activity (8.88 µmol h -1 cm -2 ) to convert CO 2 to CO than that of Pd/C (7.59 µmol h -1 cm -2 ) and Pt/C (0.75 µmol h -1 cm -2 ) at the same catalyst loading. This study indicates that AAEM based reactor is able to realize the gas phase electrochemical conversion of CO 2 , providing a viable strategy for CO 2 utilization and conversion to useful fuels.
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Unlike AEMs, BPMs inhibit the loss of cathodic liquid products to the anode via electromigration, diffusion, and/or electroosmotic drag, resulting in higher concentrations of recovered products.
“Moreover, unlike AEMs, BPMs inhibit the loss of the cathodic liquid products to the anode via electromigration, diffusion, and/or electroosmotic drag, resulting in higher concentrations of recovered products.[173]”
From Electrochemical CO <sub>2</sub> Reduction into Chemical Feedstocks: From Mechanistic Electrocatalysis Models to System Design (2019) · cites this paper as [173]
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References 39 · Cited by 84
- Authors
- Wang, G., Pan, J., Jiang, S. P., & Yang, H.
- Affiliations
- Chinese Academy of Sciences (CN)
- Curtin University (AU)
- University of the Sunshine Coast (AU)
- University of Chinese Academy of Sciences (CN)
- Corresponding author
- Jiang, San Ping
- Yang, Hui
- Venue
- Journal of CO2 Utilization
- Publisher
- Elsevier BV
- Published
- 2018-01
- Volume
- 23
- Pages
- 152-158
- ISSN
- 2212-9820 (ISSN-L)
- OpenAlex
- W2772280893
- Cited by
- 84
- References
- 39
- Citations by year
- 2026: 4 · 2025: 9 · 2024: 6 · 2023: 12 · 2022: 14 · 2021: 10 · 2020: 17 · 2019: 11 · 2018: 1
- FWCI
- 2.13
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of CO2 Utilization (publishedVersion)
- eSpace (Curtin University) (submittedVersion)
- Funders
- National Key Research and Development Program of China (2017YFA0206500)
- Natural Science Foundation of China (21533005, 51506213)
- Australian Research Council under Discovery Project Scheme (DP150102025, DP150102044)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
- Physical Sciences › Chemical Engineering › Catalysis › Catalysts for Methane Reforming
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Keywords
- electrochemical CO2 reduction, anion exchange membrane fuel cells, proton exchange membrane fuel cells, CO2 to CO conversion, hydrogen production, palladium on carbon, Pt/C catalyst, hydrogen evolution suppression, CO2 utilization
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