Electro-Refinery in Organics to Produce Energy Carriers: Co-Generation of Green Hydrogen and Carboxylic Acids by Glycerol Electrooxidation Using Dimensionally Stable Anode DOI Open Access

Letícia M. G. da Silva,

Letícia G. A. Costa, José Eudes L. Santos

и другие.

Catalysts, Год журнала: 2025, Номер 15(4), С. 333 - 333

Опубликована: Март 31, 2025

The urgency to decarbonize fuels has contributed a rise in biofuel production, which culminated significant increase the waste quantity of glycerol produced. Therefore, convert into high-value products, electrochemical oxidation (EO) is viable alternative for co-generation carboxylic acids, such as formic acid (FA) and green hydrogen (H2), are considered energy carriers. aim this study electroconversion FA by EO using divided cell, driven photovoltaic (PV) system, with dimensionally stable anode (DSA, Ti/TiO2-RuO2-IrO2) electrode an Ni-Fe stainless steel (SS) mesh cathode. To optimize experimental conditions, studies were carried out evaluating effects applied current density (j), electrolyte concentration, electrolysis time, cell configuration (undivided divided). According results, optimum conditions achieved at 90 mA cm−2, 0.1 mol L−1 Na2SO4 supporting electrolyte, 480 min electrolysis. In condition, 256.21 211.17 mg obtained undivided cells, respectively, while 6.77 L dry H2 was cell. process under also real sample, where organic acids like acetic co-produced simultaneously H2. Based on preliminary economic analysis, integrated-hybrid economically promising when it integrated renewable sources solar energy.

Язык: Английский

Electro-Refinery in Organics to Produce Energy Carriers: Co-Generation of Green Hydrogen and Carboxylic Acids by Glycerol Electrooxidation Using Dimensionally Stable Anode DOI Open Access

Letícia M. G. da Silva,

Letícia G. A. Costa, José Eudes L. Santos

и другие.

Catalysts, Год журнала: 2025, Номер 15(4), С. 333 - 333

Опубликована: Март 31, 2025

The urgency to decarbonize fuels has contributed a rise in biofuel production, which culminated significant increase the waste quantity of glycerol produced. Therefore, convert into high-value products, electrochemical oxidation (EO) is viable alternative for co-generation carboxylic acids, such as formic acid (FA) and green hydrogen (H2), are considered energy carriers. aim this study electroconversion FA by EO using divided cell, driven photovoltaic (PV) system, with dimensionally stable anode (DSA, Ti/TiO2-RuO2-IrO2) electrode an Ni-Fe stainless steel (SS) mesh cathode. To optimize experimental conditions, studies were carried out evaluating effects applied current density (j), electrolyte concentration, electrolysis time, cell configuration (undivided divided). According results, optimum conditions achieved at 90 mA cm−2, 0.1 mol L−1 Na2SO4 supporting electrolyte, 480 min electrolysis. In condition, 256.21 211.17 mg obtained undivided cells, respectively, while 6.77 L dry H2 was cell. process under also real sample, where organic acids like acetic co-produced simultaneously H2. Based on preliminary economic analysis, integrated-hybrid economically promising when it integrated renewable sources solar energy.

Язык: Английский

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