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EnglishThe electrochemical reduction of pressurized carbon dioxide at tin cathode is considered a very promising process for the production of formic acid. Here, the process was studied in an undivided cell with the aim of developing a simple theoretical model. First, a large series of polarization and electrolyses was performed in order to evaluate the kinetic of the process. According to the literature, experimental results can be described by a simple reaction mechanism, which involves the following key stages: (i) mass transfer of CO2 to the cathode; (i) its adsorption described by a Langmuir equation; (iii) the reduction of adsorbed CO2. A simple model was developed based on the cathodic conversion of pressurized CO2 to HCOOH and on its anodic oxidation. The theoretical model was in a good agreement with experimental results collected in this work and in previous ones and well described the effect of several operative parameters, including current density, pressure and kind of reactor.
Proietto F., Galia A., & Scialdone O. (2019). Electrochemical Conversion of CO2 to HCOOH at Tin Cathode: Development of a Theoretical Model and Comparison with Experimental Results. CHEMELECTROCHEM, 6(1), 162-172 [10.1002/celc.201801067].
| Data di pubblicazione: | 2019 | |
| Titolo: | Electrochemical Conversion of CO2 to HCOOH at Tin Cathode: Development of a Theoretical Model and Comparison with Experimental Results | |
| Autori: | SCIALDONE, Onofrio (Corresponding) | |
| Citazione: | Proietto F., Galia A., & Scialdone O. (2019). Electrochemical Conversion of CO2 to HCOOH at Tin Cathode: Development of a Theoretical Model and Comparison with Experimental Results. CHEMELECTROCHEM, 6(1), 162-172 [10.1002/celc.201801067]. | |
| Rivista: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1002/celc.201801067 | |
| Abstract: | The electrochemical reduction of pressurized carbon dioxide at tin cathode is considered a very promising process for the production of formic acid. Here, the process was studied in an undivided cell with the aim of developing a simple theoretical model. First, a large series of polarization and electrolyses was performed in order to evaluate the kinetic of the process. According to the literature, experimental results can be described by a simple reaction mechanism, which involves the following key stages: (i) mass transfer of CO2 to the cathode; (i) its adsorption described by a Langmuir equation; (iii) the reduction of adsorbed CO2. A simple model was developed based on the cathodic conversion of pressurized CO2 to HCOOH and on its anodic oxidation. The theoretical model was in a good agreement with experimental results collected in this work and in previous ones and well described the effect of several operative parameters, including current density, pressure and kind of reactor. | |
| Settore Scientifico Disciplinare: | Settore ING-IND/27 - Chimica Industriale E Tecnologica | |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
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http://hdl.handle.net/10447/410095
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