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Proposing Oxalic Acid as Chemical Storage of Carbon Dioxide to Achieve Carbon Neutrality
Edson Leonardo Scarpa de Souza1, Helfried Neumann1, Carlos Roque Duarte Correia2
1Leibniz-Institut für Katalyse e. V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany.
Abstract:
Increasing emissions of carbon dioxide into the atmosphere due to the use of fossil fuels and ongoing deforestation are affecting the global climate. To reach the Paris climate agreement, in the coming decades low emission technologies must be developed, which allow for carbon removal on a Gt per year-scale. In this regard, we propose the electrochemical conversion of carbon dioxide to oxalic acid as a potentially viable pathway for large scale CO2 utilization and storage. Combined with water oxidation, in principle this transformation does not need stoichiometric amounts of co-reagents and minimize the necessary electrons for the reduction of carbon dioxide.
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The concrete's permeability is slightly reduced as calcium carbonate produced during the reaction fills its pores. Furthermore, its strength is slightly enhanced as the water released during the reaction...

