The Effect of Resorcinol on the Kinetics of Underpotentially Deposited Hydrogen and the Oxygen Evolution Reaction, Studied on Polycrystalline Pt in a 0.5 M H<sub>2</sub>SO<sub>4</sub> Solution
This article reports on the influence of resorcinol (RC) on the kinetics of underpotential deposition of hydrogen (UPD of H) and the oxygen evolution reaction (OER), studied on a polycrystalline Pt electrode in a 0.5 M sulphuric acid supporting solution. It is well known that both PEM fuel cells and...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/3/1092 |
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| author | Mateusz Kuczyński Mateusz Łuba Tomasz Mikołajczyk Bogusław Pierożyński |
| author_facet | Mateusz Kuczyński Mateusz Łuba Tomasz Mikołajczyk Bogusław Pierożyński |
| author_sort | Mateusz Kuczyński |
| collection | DOAJ |
| description | This article reports on the influence of resorcinol (RC) on the kinetics of underpotential deposition of hydrogen (UPD of H) and the oxygen evolution reaction (OER), studied on a polycrystalline Pt electrode in a 0.5 M sulphuric acid supporting solution. It is well known that both PEM fuel cells and water electrolysers’ electrodes often contain significant amounts of nanostructured Pt or other types of noble metal particles. These materials provide the superior catalytic activity of electrochemical reactions such as OER (oxygen evolution reaction), HER (hydrogen evolution reaction) and ORR (oxygen reduction reaction). The trace amounts of phenolic substances contained in air or water could be harmful (when in contact with a fuel cell/water electrolyser’s working environment) to the abovementioned catalytic surfaces. Hence, they could potentially have severe detrimental effects on the kinetics of these processes. The results obtained in this work provided evidence for the detrimental role of Pt surface-adsorbed resorcinol molecules (or their electrodegradation products) on the kinetics of UPD of H and the oxygen evolution reaction. The above was revealed through evaluation of the associated charge-transfer resistance and capacitance parameters, comparatively derived on a platinum electrode, for the initial and the resorcinol-modified H<sub>2</sub>SO<sub>4</sub> electrolyte. |
| first_indexed | 2024-03-09T23:56:23Z |
| format | Article |
| id | doaj.art-55a4f4b24b7c499787099b3dc07ce506 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T23:56:23Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-55a4f4b24b7c499787099b3dc07ce5062023-11-23T16:25:02ZengMDPI AGEnergies1996-10732022-02-01153109210.3390/en15031092The Effect of Resorcinol on the Kinetics of Underpotentially Deposited Hydrogen and the Oxygen Evolution Reaction, Studied on Polycrystalline Pt in a 0.5 M H<sub>2</sub>SO<sub>4</sub> SolutionMateusz Kuczyński0Mateusz Łuba1Tomasz Mikołajczyk2Bogusław Pierożyński3Department of Chemistry, Faculty of Agriculture and Forestry, University of Warmia and Mazury in Olsztyn, Łódzki Square 4, 10-727 Olsztyn, PolandDepartment of Chemistry, Faculty of Agriculture and Forestry, University of Warmia and Mazury in Olsztyn, Łódzki Square 4, 10-727 Olsztyn, PolandDepartment of Chemistry, Faculty of Agriculture and Forestry, University of Warmia and Mazury in Olsztyn, Łódzki Square 4, 10-727 Olsztyn, PolandDepartment of Chemistry, Faculty of Agriculture and Forestry, University of Warmia and Mazury in Olsztyn, Łódzki Square 4, 10-727 Olsztyn, PolandThis article reports on the influence of resorcinol (RC) on the kinetics of underpotential deposition of hydrogen (UPD of H) and the oxygen evolution reaction (OER), studied on a polycrystalline Pt electrode in a 0.5 M sulphuric acid supporting solution. It is well known that both PEM fuel cells and water electrolysers’ electrodes often contain significant amounts of nanostructured Pt or other types of noble metal particles. These materials provide the superior catalytic activity of electrochemical reactions such as OER (oxygen evolution reaction), HER (hydrogen evolution reaction) and ORR (oxygen reduction reaction). The trace amounts of phenolic substances contained in air or water could be harmful (when in contact with a fuel cell/water electrolyser’s working environment) to the abovementioned catalytic surfaces. Hence, they could potentially have severe detrimental effects on the kinetics of these processes. The results obtained in this work provided evidence for the detrimental role of Pt surface-adsorbed resorcinol molecules (or their electrodegradation products) on the kinetics of UPD of H and the oxygen evolution reaction. The above was revealed through evaluation of the associated charge-transfer resistance and capacitance parameters, comparatively derived on a platinum electrode, for the initial and the resorcinol-modified H<sub>2</sub>SO<sub>4</sub> electrolyte.https://www.mdpi.com/1996-1073/15/3/1092resorcinolRCUPD of HOERpolycrystalline Pt electrodeac. impedance spectroscopy |
| spellingShingle | Mateusz Kuczyński Mateusz Łuba Tomasz Mikołajczyk Bogusław Pierożyński The Effect of Resorcinol on the Kinetics of Underpotentially Deposited Hydrogen and the Oxygen Evolution Reaction, Studied on Polycrystalline Pt in a 0.5 M H<sub>2</sub>SO<sub>4</sub> Solution Energies resorcinol RC UPD of H OER polycrystalline Pt electrode ac. impedance spectroscopy |
| title | The Effect of Resorcinol on the Kinetics of Underpotentially Deposited Hydrogen and the Oxygen Evolution Reaction, Studied on Polycrystalline Pt in a 0.5 M H<sub>2</sub>SO<sub>4</sub> Solution |
| title_full | The Effect of Resorcinol on the Kinetics of Underpotentially Deposited Hydrogen and the Oxygen Evolution Reaction, Studied on Polycrystalline Pt in a 0.5 M H<sub>2</sub>SO<sub>4</sub> Solution |
| title_fullStr | The Effect of Resorcinol on the Kinetics of Underpotentially Deposited Hydrogen and the Oxygen Evolution Reaction, Studied on Polycrystalline Pt in a 0.5 M H<sub>2</sub>SO<sub>4</sub> Solution |
| title_full_unstemmed | The Effect of Resorcinol on the Kinetics of Underpotentially Deposited Hydrogen and the Oxygen Evolution Reaction, Studied on Polycrystalline Pt in a 0.5 M H<sub>2</sub>SO<sub>4</sub> Solution |
| title_short | The Effect of Resorcinol on the Kinetics of Underpotentially Deposited Hydrogen and the Oxygen Evolution Reaction, Studied on Polycrystalline Pt in a 0.5 M H<sub>2</sub>SO<sub>4</sub> Solution |
| title_sort | effect of resorcinol on the kinetics of underpotentially deposited hydrogen and the oxygen evolution reaction studied on polycrystalline pt in a 0 5 m h sub 2 sub so sub 4 sub solution |
| topic | resorcinol RC UPD of H OER polycrystalline Pt electrode ac. impedance spectroscopy |
| url | https://www.mdpi.com/1996-1073/15/3/1092 |
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