Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance
Development of efficient sorbents for carbon dioxide (CO2) capture from flue gas or its removal from natural gas and landfill gas is very important for environmental protection. A new series of heteroatom-doped porous carbon was synthesized directly from pyrazole/KOH by thermolysis. The resulting py...
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2017
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| Online Access: | http://hdl.handle.net/11073/16262 |
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| _version_ | 1864513444108042240 |
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| author | Abdelmoaty, Yomna H |
| author2 | Tessema, Tsemre-Dingel Norouzi, Nazgol El-Kadri, Oussama Turner, Joseph B. McGee El-Kaderi, Hani M. |
| author2_role | author author author author author |
| author_facet | Abdelmoaty, Yomna H Tessema, Tsemre-Dingel Norouzi, Nazgol El-Kadri, Oussama Turner, Joseph B. McGee El-Kaderi, Hani M. |
| author_role | author |
| dc.creator.none.fl_str_mv | Abdelmoaty, Yomna H Tessema, Tsemre-Dingel Norouzi, Nazgol El-Kadri, Oussama Turner, Joseph B. McGee El-Kaderi, Hani M. |
| dc.date.none.fl_str_mv | 2017-09-28 2018-10-28T09:04:18Z 2018-10-28T09:04:18Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | Abdelmoaty, Yomna H, Tsemre-dingel Tessema, Nazgol Norouzi, Oussama El-Kadri, Joseph B. McGee Turner, and Hani M. El-Kaderi. "Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance." ACS Applied Materials & Interfaces 9, no. 41 (2017): 35802. 1944-8252 http://hdl.handle.net/11073/16262 10.1021/acsami.7b09989 |
| dc.language.none.fl_str_mv | en_US |
| dc.publisher.none.fl_str_mv | ACS Publications |
| dc.relation.none.fl_str_mv | ACS Applied Materials & Interfaces https://doi.org/10.1021/acsami.7b09989 |
| dc.subject.none.fl_str_mv | CO2 capture Flue gas Gas separation IAST Landfill gas Nitrogen-doped carbon Porous carbon |
| dc.title.none.fl_str_mv | Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | Development of efficient sorbents for carbon dioxide (CO2) capture from flue gas or its removal from natural gas and landfill gas is very important for environmental protection. A new series of heteroatom-doped porous carbon was synthesized directly from pyrazole/KOH by thermolysis. The resulting pyrazole-derived carbons (PYDCs) are highly doped with nitrogen (14.9–15.5 wt %) as a result of the high nitrogen-to-carbon ratio in pyrazole (43 wt %) and also have a high oxygen content (16.4–18.4 wt %). PYDCs have a high surface area (SABET = 1266–2013 m2 g–1), high CO2 Qst (33.2–37.1 kJ mol–1), and a combination of mesoporous and microporous pores. PYDCs exhibit significantly high CO2 uptakes that reach 2.15 and 6.06 mmol g–1 at 0.15 and 1 bar, respectively, at 298 K. At 273 K, the CO2 uptake improves to 3.7 and 8.59 mmol g–1 at 0.15 and 1 bar, respectively. The reported porous carbons also show significantly high adsorption selectivity for CO2/N2 (128) and CO2/CH4 (13.4) according to ideal adsorbed solution theory calculations at 298 K. Gas breakthrough studies of CO2/N2 (10:90) at 298 K showed that PYDCs display excellent separation properties. The ability to tailor the physical properties of PYDCs as well as their chemical composition provides an effective strategy for designing efficient CO2 sorbents. |
| format | article |
| id | aus_bfc3b4e1d0798911dd702bce114931f0 |
| identifier_str_mv | Abdelmoaty, Yomna H, Tsemre-dingel Tessema, Nazgol Norouzi, Oussama El-Kadri, Joseph B. McGee Turner, and Hani M. El-Kaderi. "Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance." ACS Applied Materials & Interfaces 9, no. 41 (2017): 35802. 1944-8252 10.1021/acsami.7b09989 |
| language_invalid_str_mv | en_US |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/16262 |
| publishDate | 2017 |
| publisher.none.fl_str_mv | ACS Publications |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation PerformanceAbdelmoaty, Yomna HTessema, Tsemre-DingelNorouzi, NazgolEl-Kadri, OussamaTurner, Joseph B. McGeeEl-Kaderi, Hani M.CO2 captureFlue gasGas separationIASTLandfill gasNitrogen-doped carbonPorous carbonDevelopment of efficient sorbents for carbon dioxide (CO2) capture from flue gas or its removal from natural gas and landfill gas is very important for environmental protection. A new series of heteroatom-doped porous carbon was synthesized directly from pyrazole/KOH by thermolysis. The resulting pyrazole-derived carbons (PYDCs) are highly doped with nitrogen (14.9–15.5 wt %) as a result of the high nitrogen-to-carbon ratio in pyrazole (43 wt %) and also have a high oxygen content (16.4–18.4 wt %). PYDCs have a high surface area (SABET = 1266–2013 m2 g–1), high CO2 Qst (33.2–37.1 kJ mol–1), and a combination of mesoporous and microporous pores. PYDCs exhibit significantly high CO2 uptakes that reach 2.15 and 6.06 mmol g–1 at 0.15 and 1 bar, respectively, at 298 K. At 273 K, the CO2 uptake improves to 3.7 and 8.59 mmol g–1 at 0.15 and 1 bar, respectively. The reported porous carbons also show significantly high adsorption selectivity for CO2/N2 (128) and CO2/CH4 (13.4) according to ideal adsorbed solution theory calculations at 298 K. Gas breakthrough studies of CO2/N2 (10:90) at 298 K showed that PYDCs display excellent separation properties. The ability to tailor the physical properties of PYDCs as well as their chemical composition provides an effective strategy for designing efficient CO2 sorbents.ACS Publications2018-10-28T09:04:18Z2018-10-28T09:04:18Z2017-09-28info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfAbdelmoaty, Yomna H, Tsemre-dingel Tessema, Nazgol Norouzi, Oussama El-Kadri, Joseph B. McGee Turner, and Hani M. El-Kaderi. "Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance." ACS Applied Materials & Interfaces 9, no. 41 (2017): 35802.1944-8252http://hdl.handle.net/11073/1626210.1021/acsami.7b09989en_USACS Applied Materials & Interfaceshttps://doi.org/10.1021/acsami.7b09989oai:repository.aus.edu:11073/162622024-08-22T12:18:34Z |
| spellingShingle | Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance Abdelmoaty, Yomna H CO2 capture Flue gas Gas separation IAST Landfill gas Nitrogen-doped carbon Porous carbon |
| status_str | publishedVersion |
| title | Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance |
| title_full | Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance |
| title_fullStr | Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance |
| title_full_unstemmed | Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance |
| title_short | Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance |
| title_sort | Effective Approach for Increasing the Heteroatom Doping Levels of Porous Carbons for Superior CO2 Capture and Separation Performance |
| topic | CO2 capture Flue gas Gas separation IAST Landfill gas Nitrogen-doped carbon Porous carbon |
| url | http://hdl.handle.net/11073/16262 |