Abstract
The chemistry and electrochemistry basic fields have been active for the last two decades of the past century studying how the modification of the electrodes’ surface by coating with conductive thin films enhances their electrocatalytic activity and sensitivity. In light of the development of alternative sustainable ways of energy storage and carbon dioxide conversion by electrochemical reduction, these research studies are starting to jump into the 21st century to more applied fields such as chemical engineering, energy and environmental science, and engineering. The huge amount of literature on experimental works dealing with the development of CO2 electroreduction processes addresses electrocatalyst development and reactor configurations. Membranes can help with understanding and controlling the mass transport limitations of current electrodes as well as leading to novel reactor designs. The present work makes use of a bibliometric analysis directed to the papers published in the 21st century on membrane-coated electrodes and electrocatalysts to enhance the electrochemical reactor performance and their potential in the urgent issue of carbon dioxide capture and utilization.
Highlights
The sharp rise of the concentration of carbon dioxide in the atmosphere due to fossil fuels consumption is acknowledged as the main cause of environmental and health problems threatening humans’ living environment irreversibly
CO2 would be a low-temperature alternative if the intermittency of renewable electricity production and its storage in energy bonds of chemical fuels were commercial [1]. These improvements have been generally addressed by focusing on the optimization of electrocatalysts, electrodes, reactor types, and flow cell systems, which often differ in the type of ion exchange membrane whose role is limited to the separator between cell compartments and ion transfer, type of electrolyte, and phase as well as strategies on flow channel and compartments design [2,3,4,5,6]
Applications, this paper will be useful focusthe theobject global of thebefore, research in MCECs and emerging which has nottobeen of panorama similar studies as far as we know
Summary
The sharp rise of the concentration of carbon dioxide in the atmosphere due to fossil fuels consumption is acknowledged as the main cause of environmental and health problems threatening humans’ living environment irreversibly. The electrochemical reduction of CO2 would be a low-temperature alternative if the intermittency of renewable electricity production and its storage in energy bonds of chemical fuels were commercial [1] These improvements have been generally addressed by focusing on the optimization of electrocatalysts, electrodes, reactor types, and flow cell systems, which often differ in the type of ion exchange membrane whose role is limited to the separator between cell compartments and ion transfer, type of electrolyte, and phase as well as strategies on flow channel and compartments design [2,3,4,5,6]. The mass transport limitation on continuous flow metal catalyst-coated ion-exchange membrane electrodes can be addressed by according a more active electrochemical cells attempted so far by applying high-pressure, gas diffusion electrodes roleand to the membrane than just as separation barrier [16,17].
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