Journal
CURRENT OPINION IN ELECTROCHEMISTRY
Volume 23, Issue -, Pages 89-95Publisher
ELSEVIER
DOI: 10.1016/j.coelec.2020.05.004
Keywords
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Funding
- Swiss Competence Center for Energy Research (SCCER) Heat and Electricity Storage
- Swiss National Science Foundation [PZENP2_173632]
- Swiss National Science Foundation (SNF) [PZENP2_173632] Funding Source: Swiss National Science Foundation (SNF)
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The electroreduction of CO2 into value-added products (e.g. CO) constitutes an excellent means of decreasing this greenhouse gas emissions, but limited efforts have been devoted to the implementation of this reaction within the so-called co-electrolysis cells operating at process-relevant currents >> 100 mA.cm(geom)(-2). Reaching such performances shall require a combination of gas-fed reactants and the corresponding diffusion electrodes, along with ion-exchange membranes and ionomers that set the operative pH at the cells' cathode and anode. The latter constitutes a key design parameter that must be combined with the need to minimize the crossover of reaction products and/or (bi)carbonate anions from the cathode to the anode, whereby their reoxidation to carbon dioxide leads to a decrease in the device's net CO2 consumption.
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