Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures
Converting carbon dioxide into valuable chemicals requires suitable catalysts to perform efficiently under severe reaction conditions. Developing suitable supported copper catalysts can potentially improve catalytic performance for CO2 reduction by interacting with copper active components. Herein,...
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , |
| التنسيق: | article |
| منشور في: |
2024
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://dx.doi.org/10.1016/j.ijhydene.2024.01.193 https://www.sciencedirect.com/science/article/pii/S0360319924002155 http://hdl.handle.net/10576/66698 |
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| _version_ | 1857415083657789440 |
|---|---|
| author | Parisa, Ebrahimi |
| author2 | Kumar, Anand Khraisheh, Majeda |
| author2_role | author author |
| author_facet | Parisa, Ebrahimi Kumar, Anand Khraisheh, Majeda |
| author_role | author |
| dc.creator.none.fl_str_mv | Parisa, Ebrahimi Kumar, Anand Khraisheh, Majeda |
| dc.date.none.fl_str_mv | 2024-01-30 2025-08-02T13:42:31Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://dx.doi.org/10.1016/j.ijhydene.2024.01.193 Ebrahimi, P., Kumar, A., & Khraisheh, M. (2024). Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures. International Journal of Hydrogen Energy, 75, 229-244. 0360-3199 https://www.sciencedirect.com/science/article/pii/S0360319924002155 http://hdl.handle.net/10576/66698 229-244 75 1879-3487 |
| dc.language.none.fl_str_mv | en |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | CO2 conversion ZrO2 support Reverse water gas shift reaction Oxygen vacancy Reaction kinetics |
| dc.title.none.fl_str_mv | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | Converting carbon dioxide into valuable chemicals requires suitable catalysts to perform efficiently under severe reaction conditions. Developing suitable supported copper catalysts can potentially improve catalytic performance for CO2 reduction by interacting with copper active components. Herein, we investigate Cu/ZrO2 catalysts, synthesized by wet-impregnation (WI) method with various copper contents, for the reverse water-gas shift (RWGS) reaction. It is anticipated that metal-support interaction, surface defects, and oxygen vacancies in oxide catalysts play critical roles in defining catalytic activity. To understand this, various ZrO2-supported catalysts with different crystallite sizes were prepared by altering the calcination temperature and assessing their catalytic performance. The results showed that 2 wt%Cu/ZrO2 catalyst calcined at 800 °C had the highest CO2 conversion to CO of ∼37 % at 600 °C, with less than 0.25 % coke formation. Kinetics studies showed that the redox model agreed better with experimental data when considering equilibrium conditions. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | qu_ce058e904937d954b0a605c9e935d943 |
| identifier_str_mv | Ebrahimi, P., Kumar, A., & Khraisheh, M. (2024). Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures. International Journal of Hydrogen Energy, 75, 229-244. 0360-3199 229-244 75 1879-3487 |
| language_invalid_str_mv | en |
| network_acronym_str | qu |
| network_name_str | Qatar University repository |
| oai_identifier_str | oai:qspace.qu.edu.qa:10576/66698 |
| publishDate | 2024 |
| publisher.none.fl_str_mv | Elsevier |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| spelling | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperaturesParisa, EbrahimiKumar, AnandKhraisheh, MajedaCO2 conversionZrO2 supportReverse water gas shift reactionOxygen vacancyReaction kineticsConverting carbon dioxide into valuable chemicals requires suitable catalysts to perform efficiently under severe reaction conditions. Developing suitable supported copper catalysts can potentially improve catalytic performance for CO2 reduction by interacting with copper active components. Herein, we investigate Cu/ZrO2 catalysts, synthesized by wet-impregnation (WI) method with various copper contents, for the reverse water-gas shift (RWGS) reaction. It is anticipated that metal-support interaction, surface defects, and oxygen vacancies in oxide catalysts play critical roles in defining catalytic activity. To understand this, various ZrO2-supported catalysts with different crystallite sizes were prepared by altering the calcination temperature and assessing their catalytic performance. The results showed that 2 wt%Cu/ZrO2 catalyst calcined at 800 °C had the highest CO2 conversion to CO of ∼37 % at 600 °C, with less than 0.25 % coke formation. Kinetics studies showed that the redox model agreed better with experimental data when considering equilibrium conditions.The work was made possible by a grant from the Qatar National Research Fund under the National Priorities Research Program award number NPRP14S-0302-210011 and NPRP10-0107-170119. This work was also supported by the Graduate Teaching/Research Assistantship (GTRA) from Qatar University.Elsevier2025-08-02T13:42:31Z2024-01-30Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1016/j.ijhydene.2024.01.193Ebrahimi, P., Kumar, A., & Khraisheh, M. (2024). Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures. International Journal of Hydrogen Energy, 75, 229-244.0360-3199https://www.sciencedirect.com/science/article/pii/S0360319924002155http://hdl.handle.net/10576/66698229-244751879-3487enhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:qspace.qu.edu.qa:10576/666982025-08-02T19:07:02Z |
| spellingShingle | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures Parisa, Ebrahimi CO2 conversion ZrO2 support Reverse water gas shift reaction Oxygen vacancy Reaction kinetics |
| status_str | publishedVersion |
| title | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures |
| title_full | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures |
| title_fullStr | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures |
| title_full_unstemmed | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures |
| title_short | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures |
| title_sort | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO2 to CO at low temperatures |
| topic | CO2 conversion ZrO2 support Reverse water gas shift reaction Oxygen vacancy Reaction kinetics |
| url | http://dx.doi.org/10.1016/j.ijhydene.2024.01.193 https://www.sciencedirect.com/science/article/pii/S0360319924002155 http://hdl.handle.net/10576/66698 |