dc.contributor.author | Lesnicenoks, Peteris | |
dc.contributor.author | Knoks, Ainars | |
dc.contributor.author | Piskunov, Sergei | |
dc.contributor.author | Jekabsons, Laimonis | |
dc.contributor.author | Kleperis, Janis | |
dc.date.accessioned | 2023-10-12T12:29:46Z | |
dc.date.available | 2023-10-12T12:29:46Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 2673-3293 | |
dc.identifier.uri | https://www.mdpi.com/2673-3293/3/2/15 | |
dc.identifier.uri | https://dspace.lu.lv/dspace/handle/7/64848 | |
dc.description | The authors would like to express their gratitude for funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 768789 (CO2EXIDE project). Calculations and research were performed in Center of Excellence at Institute of Solid State Physics, the University of Latvia, which is supported by European Union Horizon2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under Grant Agreement No. 739508, project CAMART2. P.L. and J.K. thank ISSP UL research assistant Ingars Lukosevics for the experimental work and the results obtained. | en_US |
dc.description.abstract | Renewable energy resources (wind, solar) are unpredictable, so it is wise to store the electricity they generate in an energy carrier X. Various PtX (power to useful energy-intensive raw material such as hydrogen, synthetic natural gas, fuel) applications have been proposed. At the heart of our work is widely used idea to convert residual CO2 from biogas plant into higher hydrocarbons using electricity from renewables (e.g., sun, wind, hydro). The specific goal is to produce ethylene-highly demanded hydrocarbon in plastics industry. The process itself is realised on electrocatalytic carbon/copper cathode which must be selective to reaction: 2CO2 + 12e− + 12H+→C2H4 + 4H2O. We propose a bottom-up approach to build catalyst from the smallest particles-graphene sheet stacks (GSS) coated with metallic copper nanocrystals. Composite GSS-Cu structure functions as a CO2 and proton absorber, facilitating hydrogenation and carbon–carbon coupling reactions on Cu-nanocluster/GSS for the formation of C2H4. In our design electrocatalytic electrode is made from nitrogen-doped graphene sheet stacks coated with copper nanostructures. The N-GSSitself can be drop-casted or electrophoretically incorporated onto the carbon paper and gas diffusion electrode. Electrochemical deposition method was recognized as successful and most promising to grow Cu nanocrystals on N-GSS incorporated in conducting carbon substrate. Gaseous products from CO2 electro-catalytic reformation on the cathode were investigated by mass-spectrometer but the electrode surface was analysed by SEM/EDS and XRD methods. © 2022 by the authors. --//-- Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | en_US |
dc.description.sponsorship | Horizon 2020, grant agreement No 768789 (CO2EXIDE project); Horizon2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under Grant Agreement No. 739508, project CAMART2. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | MDPI | en_US |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/739508/EU/Centre of Advanced Material Research and Technology Transfer/CAMART² | en_US |
dc.relation.ispartofseries | Electrochem;Volume 3 (2) | |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Research Subject Categories::NATURAL SCIENCES::Chemistry::Analytical chemistry::Electrochemistry | en_US |
dc.subject | catalysts | en_US |
dc.subject | CO2 | en_US |
dc.subject | electrocatalysis | en_US |
dc.subject | ethylene | en_US |
dc.subject | gas diffusion electrode | en_US |
dc.subject | graphene sheet stacks | en_US |
dc.title | N-Graphene Sheet Stacks/Cu Electrocatalyst for CO2 Reduction to Ethylene | en_US |
dc.type | info:eu-repo/semantics/article | en_US |
dc.identifier.doi | 10.3390/electrochem3020015 | |