Electrodeposited copper-cuprite layers modified with rGO for light-supported conversion of CO2 to methane and ethylene
Cu-Cu2O-rGO composite layers were electrodeposited for the first time from alkaline copper(II) lactate-based electrolytes containing dispersed rGO flakes. The properties of electrodeposited composite materials are strongly affected by applied potentials. Obtained layers were investigated towards the...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-07-01
|
| Series: | Journal of CO2 Utilization |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212982025000903 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849434398895636480 |
|---|---|
| author | Krzysztof Mech Patrycja Kolbusz Andrzej Sławek Mateusz Marzec Edit Csapó |
| author_facet | Krzysztof Mech Patrycja Kolbusz Andrzej Sławek Mateusz Marzec Edit Csapó |
| author_sort | Krzysztof Mech |
| collection | DOAJ |
| description | Cu-Cu2O-rGO composite layers were electrodeposited for the first time from alkaline copper(II) lactate-based electrolytes containing dispersed rGO flakes. The properties of electrodeposited composite materials are strongly affected by applied potentials. Obtained layers were investigated towards their catalytic activity in electro- and photoelectrochemical artificial CO2-based synthesis of hydrocarbons. The effect of applied potential on the morphology, crystallographic structure, band gap, and conduction and valence band location was investigated. The catalytic performance of the electrodeposited layers was analyzed in CO2-saturated KHCO3 electrolyte under the dark and at light illumination applying different conversion potentials. The stability of the obtained layers was analysed based on XPS and XAS results. Maximal Faradaic efficiencies for methane and ethylene formation were achieved in the presence of light and amounted to 10 and 9.91%, respectively. Reported results indicate that the presence of rGO in deposited layers significantly affects the band structure of electrodeposited layers. It was also observed that even slight modification of electrodeposition or conversion potential results in noticeable differences in Faradaic efficiency corresponding to hydrocarbons formation. |
| format | Article |
| id | doaj-art-35e68027c2df43d3a7ed02ed08d43b9b |
| institution | Kabale University |
| issn | 2212-9839 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of CO2 Utilization |
| spelling | doaj-art-35e68027c2df43d3a7ed02ed08d43b9b2025-08-20T03:26:39ZengElsevierJournal of CO2 Utilization2212-98392025-07-019710310610.1016/j.jcou.2025.103106Electrodeposited copper-cuprite layers modified with rGO for light-supported conversion of CO2 to methane and ethyleneKrzysztof Mech0Patrycja Kolbusz1Andrzej Sławek2Mateusz Marzec3Edit Csapó4AGH University of Krakow, Academic Centre of Materials and Technology, al. Mickiewicza 30, Kraków 30-059, Poland; Correspondence to: AGH University of Krakow, Academic Centre of Materials and Technology, Bldg. D-16, room 2.26, al. Mickiewicza 30, Krakow 30-059, Poland.AGH University of Krakow, Academic Centre of Materials and Technology, al. Mickiewicza 30, Kraków 30-059, PolandAGH University of Krakow, Academic Centre of Materials and Technology, al. Mickiewicza 30, Kraków 30-059, PolandAGH University of Krakow, Academic Centre of Materials and Technology, al. Mickiewicza 30, Kraków 30-059, PolandMTA-SZTE Lendület “Momentum” Noble Metal Nanostructures Research Group, University of Szeged, Rerrich B. sqr. 1, Szeged H-6720, Hungary; Interdisciplinary Excellence Center, Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich B. sqr. 1, Szeged H-6720, HungaryCu-Cu2O-rGO composite layers were electrodeposited for the first time from alkaline copper(II) lactate-based electrolytes containing dispersed rGO flakes. The properties of electrodeposited composite materials are strongly affected by applied potentials. Obtained layers were investigated towards their catalytic activity in electro- and photoelectrochemical artificial CO2-based synthesis of hydrocarbons. The effect of applied potential on the morphology, crystallographic structure, band gap, and conduction and valence band location was investigated. The catalytic performance of the electrodeposited layers was analyzed in CO2-saturated KHCO3 electrolyte under the dark and at light illumination applying different conversion potentials. The stability of the obtained layers was analysed based on XPS and XAS results. Maximal Faradaic efficiencies for methane and ethylene formation were achieved in the presence of light and amounted to 10 and 9.91%, respectively. Reported results indicate that the presence of rGO in deposited layers significantly affects the band structure of electrodeposited layers. It was also observed that even slight modification of electrodeposition or conversion potential results in noticeable differences in Faradaic efficiency corresponding to hydrocarbons formation.http://www.sciencedirect.com/science/article/pii/S2212982025000903ElectrodepositionComposite coatingsCO2 conversionPhotoelectrocatalysis |
| spellingShingle | Krzysztof Mech Patrycja Kolbusz Andrzej Sławek Mateusz Marzec Edit Csapó Electrodeposited copper-cuprite layers modified with rGO for light-supported conversion of CO2 to methane and ethylene Journal of CO2 Utilization Electrodeposition Composite coatings CO2 conversion Photoelectrocatalysis |
| title | Electrodeposited copper-cuprite layers modified with rGO for light-supported conversion of CO2 to methane and ethylene |
| title_full | Electrodeposited copper-cuprite layers modified with rGO for light-supported conversion of CO2 to methane and ethylene |
| title_fullStr | Electrodeposited copper-cuprite layers modified with rGO for light-supported conversion of CO2 to methane and ethylene |
| title_full_unstemmed | Electrodeposited copper-cuprite layers modified with rGO for light-supported conversion of CO2 to methane and ethylene |
| title_short | Electrodeposited copper-cuprite layers modified with rGO for light-supported conversion of CO2 to methane and ethylene |
| title_sort | electrodeposited copper cuprite layers modified with rgo for light supported conversion of co2 to methane and ethylene |
| topic | Electrodeposition Composite coatings CO2 conversion Photoelectrocatalysis |
| url | http://www.sciencedirect.com/science/article/pii/S2212982025000903 |
| work_keys_str_mv | AT krzysztofmech electrodepositedcoppercupritelayersmodifiedwithrgoforlightsupportedconversionofco2tomethaneandethylene AT patrycjakolbusz electrodepositedcoppercupritelayersmodifiedwithrgoforlightsupportedconversionofco2tomethaneandethylene AT andrzejsławek electrodepositedcoppercupritelayersmodifiedwithrgoforlightsupportedconversionofco2tomethaneandethylene AT mateuszmarzec electrodepositedcoppercupritelayersmodifiedwithrgoforlightsupportedconversionofco2tomethaneandethylene AT editcsapo electrodepositedcoppercupritelayersmodifiedwithrgoforlightsupportedconversionofco2tomethaneandethylene |