Version 1
: Received: 20 April 2023 / Approved: 21 April 2023 / Online: 21 April 2023 (08:22:58 CEST)
Version 2
: Received: 18 May 2023 / Approved: 19 May 2023 / Online: 19 May 2023 (04:09:09 CEST)
Lymperi, A.; Chatzilias, C.; Xydas, F.; Martino, E.; Kyriakou, G.; Katsaounis, A. Electrochemical Promotion of CO2 Hydrogenation Using a Pt/YSZ Fuel Cell Type Reactor. Nanomaterials2023, 13, 1930.
Lymperi, A.; Chatzilias, C.; Xydas, F.; Martino, E.; Kyriakou, G.; Katsaounis, A. Electrochemical Promotion of CO2 Hydrogenation Using a Pt/YSZ Fuel Cell Type Reactor. Nanomaterials 2023, 13, 1930.
Lymperi, A.; Chatzilias, C.; Xydas, F.; Martino, E.; Kyriakou, G.; Katsaounis, A. Electrochemical Promotion of CO2 Hydrogenation Using a Pt/YSZ Fuel Cell Type Reactor. Nanomaterials2023, 13, 1930.
Lymperi, A.; Chatzilias, C.; Xydas, F.; Martino, E.; Kyriakou, G.; Katsaounis, A. Electrochemical Promotion of CO2 Hydrogenation Using a Pt/YSZ Fuel Cell Type Reactor. Nanomaterials 2023, 13, 1930.
Abstract
The hydrogenation of CO2 is a reaction of key technological and environmental importance, as it contributes to the sustainable production of fuels while assisting in the reduction of a major greenhouse gas. The reaction has been studied extensively in the literature, with noble metal catalysts receiving significant attention within the catalysis and electrocatalysis communities. In this respect, the Electrochemical Promotion of Catalysis (EPOC) has been applied successfully to the CO2 hydrogenation reaction to improve the catalytic activity and selectivity of conductive films supported on solid electrolytes. However, designing an effective electrocatalytic reactor remains a challenge due to the connections required between the electrodes and the external potentiostat/galvanostat. This drawback could be alleviated if the catalytic reaction occurs in a reactor that simultaneously operates as a power generator. In this work, the Electrochemical Promotion of the CO2 hydrogenation reaction in a low temperature solid oxide fuel cell (SOFC) reactor is studied using yttria-stabilized zirconia (YSZ) and a platinum (Pt) catalyst. The system has been studied in two distinct operation modes: (i) when the necessary energy for the electrochemical promotion is produced through the parallel reaction of H2 oxidation (galvanic operation) and (ii) when a galvanostat/potentiostat is used to impose the necessary potential (electrolytic operation).
Keywords
RWGS reaction; EPOC; SOFC; Electrochemical promotion; syn gas; CO2 hydrogenation
Subject
Engineering, Chemical Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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