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ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO(2) Capture

This paper examines the synthesis of the ZnO/carbon spheres composites using resorcinol—formaldehyde resin as a carbon source and zinc nitrate as a zinc oxide source in a solvothermal reactor heated with microwaves. The influence of activation with potassium oxalate and modification with zinc nitrat...

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Autores principales: Pełech, Iwona, Sibera, Daniel, Staciwa, Piotr, Kusiak-Nejman, Ewelina, Kapica-Kozar, Joanna, Wanag, Agnieszka, Narkiewicz, Urszula, Morawski, Antoni W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8585212/
https://www.ncbi.nlm.nih.gov/pubmed/34771999
http://dx.doi.org/10.3390/ma14216478
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author Pełech, Iwona
Sibera, Daniel
Staciwa, Piotr
Kusiak-Nejman, Ewelina
Kapica-Kozar, Joanna
Wanag, Agnieszka
Narkiewicz, Urszula
Morawski, Antoni W.
author_facet Pełech, Iwona
Sibera, Daniel
Staciwa, Piotr
Kusiak-Nejman, Ewelina
Kapica-Kozar, Joanna
Wanag, Agnieszka
Narkiewicz, Urszula
Morawski, Antoni W.
author_sort Pełech, Iwona
collection PubMed
description This paper examines the synthesis of the ZnO/carbon spheres composites using resorcinol—formaldehyde resin as a carbon source and zinc nitrate as a zinc oxide source in a solvothermal reactor heated with microwaves. The influence of activation with potassium oxalate and modification with zinc nitrate on the physicochemical properties of the obtained materials and CO(2) adsorption capacity was investigated. It was found that in the case of nonactivated material as well as activated materials, the presence of zinc oxide in the carbon matrix had no effect or slightly increased the values of CO(2) adsorption capacity. Only for the material where the weight ratio of carbon:zinc was 2:1, the decrease of CO(2) adsorption capacity was reported. Additionally, CO(2) adsorption experiments on nonactivated carbon spheres and those activated with potassium oxalate with different amounts of zinc nitrate were carried out at 40 °C using thermobalance. The highest CO(2) adsorption capacity at temperature 40 °C (2.08 mmol/g adsorbent) was achieved for the material after activation with potassium oxalate with the highest zinc nitrate content as ZnO precursor. Moreover, repeated adsorption/desorption cycle experiments revealed that the as-prepared carbon spheres were very good CO(2) adsorbents, exhibiting excellent cyclic stability with a performance decay of less than 10% over up to 25 adsorption-desorption cycles.
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spelling pubmed-85852122021-11-12 ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO(2) Capture Pełech, Iwona Sibera, Daniel Staciwa, Piotr Kusiak-Nejman, Ewelina Kapica-Kozar, Joanna Wanag, Agnieszka Narkiewicz, Urszula Morawski, Antoni W. Materials (Basel) Article This paper examines the synthesis of the ZnO/carbon spheres composites using resorcinol—formaldehyde resin as a carbon source and zinc nitrate as a zinc oxide source in a solvothermal reactor heated with microwaves. The influence of activation with potassium oxalate and modification with zinc nitrate on the physicochemical properties of the obtained materials and CO(2) adsorption capacity was investigated. It was found that in the case of nonactivated material as well as activated materials, the presence of zinc oxide in the carbon matrix had no effect or slightly increased the values of CO(2) adsorption capacity. Only for the material where the weight ratio of carbon:zinc was 2:1, the decrease of CO(2) adsorption capacity was reported. Additionally, CO(2) adsorption experiments on nonactivated carbon spheres and those activated with potassium oxalate with different amounts of zinc nitrate were carried out at 40 °C using thermobalance. The highest CO(2) adsorption capacity at temperature 40 °C (2.08 mmol/g adsorbent) was achieved for the material after activation with potassium oxalate with the highest zinc nitrate content as ZnO precursor. Moreover, repeated adsorption/desorption cycle experiments revealed that the as-prepared carbon spheres were very good CO(2) adsorbents, exhibiting excellent cyclic stability with a performance decay of less than 10% over up to 25 adsorption-desorption cycles. MDPI 2021-10-28 /pmc/articles/PMC8585212/ /pubmed/34771999 http://dx.doi.org/10.3390/ma14216478 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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/).
spellingShingle Article
Pełech, Iwona
Sibera, Daniel
Staciwa, Piotr
Kusiak-Nejman, Ewelina
Kapica-Kozar, Joanna
Wanag, Agnieszka
Narkiewicz, Urszula
Morawski, Antoni W.
ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO(2) Capture
title ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO(2) Capture
title_full ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO(2) Capture
title_fullStr ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO(2) Capture
title_full_unstemmed ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO(2) Capture
title_short ZnO/Carbon Spheres with Excellent Regenerability for Post-Combustion CO(2) Capture
title_sort zno/carbon spheres with excellent regenerability for post-combustion co(2) capture
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8585212/
https://www.ncbi.nlm.nih.gov/pubmed/34771999
http://dx.doi.org/10.3390/ma14216478
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