Integration of CO<sub>2</sub> Capture and Conversion by Employing Metal Oxides as Dual Function Materials: Recent Development and Future Outlook

To mitigate the effect of CO<sub>2</sub> on climate change, significant efforts have been made in the past few decades to capture CO<sub>2</sub>, which can then be further sequestered or converted into value-added compounds, such as methanol and hydrocarbons, by using thermoc...

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Main Authors: Wei Jie Tan, Poernomo Gunawan
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Inorganics
Subjects:
Online Access:https://www.mdpi.com/2304-6740/11/12/464
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author Wei Jie Tan
Poernomo Gunawan
author_facet Wei Jie Tan
Poernomo Gunawan
author_sort Wei Jie Tan
collection DOAJ
description To mitigate the effect of CO<sub>2</sub> on climate change, significant efforts have been made in the past few decades to capture CO<sub>2</sub>, which can then be further sequestered or converted into value-added compounds, such as methanol and hydrocarbons, by using thermochemical or electrocatalytic processes. However, CO<sub>2</sub> capture and conversion have primarily been studied independently, resulting in individual processes that are highly energy-intensive and less economically viable due to high capital and operation costs. To enhance the overall process efficiency, integrating CO<sub>2</sub> capture and conversion into a single system offers an opportunity for a more streamlined process that can reduce energy and capital costs. This strategy can be achieved by employing dual function materials (DFMs), which possess the unique capability to simultaneously adsorb and convert CO<sub>2</sub>. These materials combine basic metal oxides with active metal catalytic sites that enable both sorption and conversion functions. In this review paper, we focus on the recent strategies that utilize mixed metal oxides as DFMs. Their material design and characteristics, reaction mechanisms, as well as performance and limitations will be discussed. We will also address the challenges associated with this integrated system and attempt to provide insights for future research endeavors.
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spelling doaj.art-cb94e00ee3aa441f89f3247f1f9932452023-12-22T14:16:04ZengMDPI AGInorganics2304-67402023-11-01111246410.3390/inorganics11120464Integration of CO<sub>2</sub> Capture and Conversion by Employing Metal Oxides as Dual Function Materials: Recent Development and Future OutlookWei Jie Tan0Poernomo Gunawan1School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, SingaporeSchool of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, SingaporeTo mitigate the effect of CO<sub>2</sub> on climate change, significant efforts have been made in the past few decades to capture CO<sub>2</sub>, which can then be further sequestered or converted into value-added compounds, such as methanol and hydrocarbons, by using thermochemical or electrocatalytic processes. However, CO<sub>2</sub> capture and conversion have primarily been studied independently, resulting in individual processes that are highly energy-intensive and less economically viable due to high capital and operation costs. To enhance the overall process efficiency, integrating CO<sub>2</sub> capture and conversion into a single system offers an opportunity for a more streamlined process that can reduce energy and capital costs. This strategy can be achieved by employing dual function materials (DFMs), which possess the unique capability to simultaneously adsorb and convert CO<sub>2</sub>. These materials combine basic metal oxides with active metal catalytic sites that enable both sorption and conversion functions. In this review paper, we focus on the recent strategies that utilize mixed metal oxides as DFMs. Their material design and characteristics, reaction mechanisms, as well as performance and limitations will be discussed. We will also address the challenges associated with this integrated system and attempt to provide insights for future research endeavors.https://www.mdpi.com/2304-6740/11/12/464CO<sub>2</sub> captureCO<sub>2</sub> conversiondual function materialmaterials design
spellingShingle Wei Jie Tan
Poernomo Gunawan
Integration of CO<sub>2</sub> Capture and Conversion by Employing Metal Oxides as Dual Function Materials: Recent Development and Future Outlook
Inorganics
CO<sub>2</sub> capture
CO<sub>2</sub> conversion
dual function material
materials design
title Integration of CO<sub>2</sub> Capture and Conversion by Employing Metal Oxides as Dual Function Materials: Recent Development and Future Outlook
title_full Integration of CO<sub>2</sub> Capture and Conversion by Employing Metal Oxides as Dual Function Materials: Recent Development and Future Outlook
title_fullStr Integration of CO<sub>2</sub> Capture and Conversion by Employing Metal Oxides as Dual Function Materials: Recent Development and Future Outlook
title_full_unstemmed Integration of CO<sub>2</sub> Capture and Conversion by Employing Metal Oxides as Dual Function Materials: Recent Development and Future Outlook
title_short Integration of CO<sub>2</sub> Capture and Conversion by Employing Metal Oxides as Dual Function Materials: Recent Development and Future Outlook
title_sort integration of co sub 2 sub capture and conversion by employing metal oxides as dual function materials recent development and future outlook
topic CO<sub>2</sub> capture
CO<sub>2</sub> conversion
dual function material
materials design
url https://www.mdpi.com/2304-6740/11/12/464
work_keys_str_mv AT weijietan integrationofcosub2subcaptureandconversionbyemployingmetaloxidesasdualfunctionmaterialsrecentdevelopmentandfutureoutlook
AT poernomogunawan integrationofcosub2subcaptureandconversionbyemployingmetaloxidesasdualfunctionmaterialsrecentdevelopmentandfutureoutlook