Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO<sub>2</sub> to CO at low temperatures
<p dir="ltr">Converting <u>carbon dioxide</u> into valuable chemicals requires suitable catalysts to perform efficiently under severe reaction conditions. Developing suitable supported <u>copper catalysts</u> can potentially improve catalytic performance for C...
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2024
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| _version_ | 1864513513454567424 |
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| author | Parisa Ebrahimi (14152392) |
| author2 | Anand Kumar (24122) Majeda Khraisheh (1349376) |
| author2_role | author author |
| author_facet | Parisa Ebrahimi (14152392) Anand Kumar (24122) Majeda Khraisheh (1349376) |
| author_role | author |
| dc.creator.none.fl_str_mv | Parisa Ebrahimi (14152392) Anand Kumar (24122) Majeda Khraisheh (1349376) |
| dc.date.none.fl_str_mv | 2024-06-21T09:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.ijhydene.2024.01.193 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Synergistic_effect_of_zirconia_oxygen_vacancies_and_Cu_nanoparticles_on_catalytic_conversion_of_CO_sub_2_sub_to_CO_at_low_temperatures/30197473 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Chemical engineering Materials engineering CO2 conversion ZrO2 support Reverse water gas shift reaction Oxygen vacancys Reaction kinetic |
| dc.title.none.fl_str_mv | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO<sub>2</sub> to CO at low temperatures |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">Converting <u>carbon dioxide</u> into valuable chemicals requires suitable catalysts to perform efficiently under severe reaction conditions. Developing suitable supported <u>copper catalysts</u> can potentially improve catalytic performance for CO<sub>2</sub> reduction by interacting with copper active components. Herein, we investigate Cu/ZrO<sub>2</sub> 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, <u>surface defects</u>, and <u>oxygen vacancies</u> in <u>oxide</u> catalysts play critical roles in defining catalytic activity. To understand this, various ZrO<sub>2</sub>-supported catalysts with different <u>crystallite sizes</u> were prepared by altering the <u>calcination</u> temperature and assessing their catalytic performance. The results showed that 2 wt%Cu/ZrO<sub>2</sub> catalyst calcined at 800 °C had the highest CO<sub>2</sub> conversion to CO of ∼37 % at 600 °C, with less than 0.25 % coke formation. <u>Kinetics studies</u> showed that the redox model agreed better with experimental data when considering equilibrium conditions.</p><h2>Other Information</h2><p dir="ltr">Published in: International Journal of Hydrogen Energy<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.ijhydene.2024.01.193" target="_blank">https://dx.doi.org/10.1016/j.ijhydene.2024.01.193</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_ec7e791567272b94b8963e27ecc92a92 |
| identifier_str_mv | 10.1016/j.ijhydene.2024.01.193 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/30197473 |
| publishDate | 2024 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO<sub>2</sub> to CO at low temperaturesParisa Ebrahimi (14152392)Anand Kumar (24122)Majeda Khraisheh (1349376)EngineeringChemical engineeringMaterials engineeringCO2 conversionZrO2 supportReverse water gas shift reactionOxygen vacancysReaction kinetic<p dir="ltr">Converting <u>carbon dioxide</u> into valuable chemicals requires suitable catalysts to perform efficiently under severe reaction conditions. Developing suitable supported <u>copper catalysts</u> can potentially improve catalytic performance for CO<sub>2</sub> reduction by interacting with copper active components. Herein, we investigate Cu/ZrO<sub>2</sub> 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, <u>surface defects</u>, and <u>oxygen vacancies</u> in <u>oxide</u> catalysts play critical roles in defining catalytic activity. To understand this, various ZrO<sub>2</sub>-supported catalysts with different <u>crystallite sizes</u> were prepared by altering the <u>calcination</u> temperature and assessing their catalytic performance. The results showed that 2 wt%Cu/ZrO<sub>2</sub> catalyst calcined at 800 °C had the highest CO<sub>2</sub> conversion to CO of ∼37 % at 600 °C, with less than 0.25 % coke formation. <u>Kinetics studies</u> showed that the redox model agreed better with experimental data when considering equilibrium conditions.</p><h2>Other Information</h2><p dir="ltr">Published in: International Journal of Hydrogen Energy<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.ijhydene.2024.01.193" target="_blank">https://dx.doi.org/10.1016/j.ijhydene.2024.01.193</a></p>2024-06-21T09:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.ijhydene.2024.01.193https://figshare.com/articles/journal_contribution/Synergistic_effect_of_zirconia_oxygen_vacancies_and_Cu_nanoparticles_on_catalytic_conversion_of_CO_sub_2_sub_to_CO_at_low_temperatures/30197473CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/301974732024-06-21T09:00:00Z |
| spellingShingle | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO<sub>2</sub> to CO at low temperatures Parisa Ebrahimi (14152392) Engineering Chemical engineering Materials engineering CO2 conversion ZrO2 support Reverse water gas shift reaction Oxygen vacancys Reaction kinetic |
| status_str | publishedVersion |
| title | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO<sub>2</sub> to CO at low temperatures |
| title_full | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO<sub>2</sub> to CO at low temperatures |
| title_fullStr | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO<sub>2</sub> to CO at low temperatures |
| title_full_unstemmed | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO<sub>2</sub> to CO at low temperatures |
| title_short | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO<sub>2</sub> to CO at low temperatures |
| title_sort | Synergistic effect of zirconia oxygen vacancies and Cu nanoparticles on catalytic conversion of CO<sub>2</sub> to CO at low temperatures |
| topic | Engineering Chemical engineering Materials engineering CO2 conversion ZrO2 support Reverse water gas shift reaction Oxygen vacancys Reaction kinetic |