2021
DOI: 10.26434/chemrxiv-2021-33k4d
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Sequential vs integrated CO2 capture and electrochemical conversion: An energy comparison

Abstract: Integrating carbon dioxide (CO2) electrolysis with CO2 capture provides new exciting opportunities for energy reductions by simultaneously removing the energy-demanding regeneration step in CO2 capture and avoiding critical issues faced by CO2 gas-fed electrolysers. However, understanding the potential energy advantages of an integrated capture and conversion process is not straightforward. There are only early-stage demonstrations of CO2 conversion from capture media very recently, and an evaluation of the br… Show more

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Cited by 3 publications
(9 citation statements)
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“…33,37,45,60,62,69,70 However, the performance of the integrated electrolyser is usually inferior to the state-of-the-art gas-fed electrolyser in terms of product Faradaic efficiency, current densities, and cell potentials. performance of these two electrolysers to convert CO 2 to CO. 36 More importantly, recent studies demonstrate the potential to improve the Faradaic efficiency and current densities for direct CO 2 conversion in an amine-based capture medium by tailoring the electrode structures, local reaction environment, and operating conditions such as temperatures and pressures, and cell design. A summary of achievements in recent studies is listed in Table 1.…”
Section: Strategies In Achieving Selective Co 2 Conversionmentioning
confidence: 99%
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“…33,37,45,60,62,69,70 However, the performance of the integrated electrolyser is usually inferior to the state-of-the-art gas-fed electrolyser in terms of product Faradaic efficiency, current densities, and cell potentials. performance of these two electrolysers to convert CO 2 to CO. 36 More importantly, recent studies demonstrate the potential to improve the Faradaic efficiency and current densities for direct CO 2 conversion in an amine-based capture medium by tailoring the electrode structures, local reaction environment, and operating conditions such as temperatures and pressures, and cell design. A summary of achievements in recent studies is listed in Table 1.…”
Section: Strategies In Achieving Selective Co 2 Conversionmentioning
confidence: 99%
“…6b from our recent energy analyses for CO 2 -to-CO highlight the importance of product faradaic efficiency and cell potentials for the overall energy efficiency, where product faradaic efficiency serves a more critical role than cell potential. 36 Therefore, this section will review recent advances in improving the faradaic efficiency and current densities via electrode innovation and modification of the local reaction environment.…”
Section: Strategies In Achieving Selective Co2 Conversionmentioning
confidence: 99%
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