CO2 Electrolysis to CO and O2 at High Selectivity, Stability and Efficiency Using Sustainion Membranes
By Zengcai Liu, Hongzhou Yang, Robert B. Kutz, R. Masel. 2018
235 citations recorded by the source corpus.
Carbon dioxide (CO 2 ) electrolysis provides a pathway to close the anthropogenic carbon cycle and store renewable energy, but the stability, selectivity, efficiency and rate of such process needs to be improved. In this paper, we explore the use of Sustainion imidazolium-functionalized membranes and ionomers to improve the performance of that process. Potentiometric runs at a fixed current of 200 mA/cm 2 using Sustainion membranes and ionomers showed that one can maintain 98% selectivity at about 3V applied potential for five months, with a voltage increase of only 3 μ V/hour. Other runs showed stable performance at 400 and 600 mA/cm 2 . These results pave the way for commercialization of CO 2 electrolysis, providing a viable pathway to recycle CO 2 back to fuels.
Subfields: Catalysis, Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/6558bcb8f09c08888a38325cbd7103242cfe9487
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In Catalysis
In Electrical and Electronic Engineering
In Renewable Energy, Sustainability and the Environment
Citations in the corpus
- 2022 roadmap on low temperature electrochemical CO2 reduction (2022, background): “Moreover, only a handful of reports come close to a stable performance on the order of 10 000 h and energetic efficiencies necessary for an economically feasible CO2R process [200].”