Effects of microporous layer on electrolyte flooding in gas diffusion electrodes and selectivity of CO2 electrolysis to CO
نویسندگان
چکیده
Understanding the relationship between gas diffusion electrode (GDE) structures and performance of electrochemical CO2 reduction reaction (CO2RR) is crucial to developing industrial-scale technologies convert valuable products. We studied how microporous layer (MPL) on GDE's coated with silver nanoparticle catalysts affects conversion CO in a flow cell electrolyser. demonstrate convenient method measure rate catholyte seepage through GDE during CO2RR experiments used this show MPL thickness flooding GDE. found thickest (39BB) had best selectivity for stability at current densities above 100 mA cm?2 as thick minimized flooding. However, low 39BB achieved lower than thinner MPL. These results suggest opportunities improve electrolyser performances high by optimisation structure wettability.
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ژورنال
عنوان ژورنال: Journal of Power Sources
سال: 2022
ISSN: ['1873-2755', '0378-7753']
DOI: https://doi.org/10.1016/j.jpowsour.2022.230998