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Optimizing Carbon Dioxide Uptake and Carbon Dioxide-Methane Selectivity of Oxygen-Doped Porous Carbon Prepared from Oxygen Containing Polymer Precursors

Saunab Ghosh, Andrew Barron Orcid Logo

ChemistrySelect, Volume: 2, Issue: 36, Pages: 11959 - 11968

Swansea University Author: Andrew Barron Orcid Logo

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DOI (Published version): 10.1002/slct.201701712

Abstract

The reproducible synthesis is reported for oxygen containing porous carbons (OPC) by the KOH activation at 500–800 °C of two oxygen containing precursor polymers: polyfurfuryl alcohol (PFFA) and polyanisyl alcohol (PAA) yielding FFA-OPC and AA-OPC, respectively. Both OPCs exhibits good thermal stabi...

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Published in: ChemistrySelect
ISSN: 2365-6549
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa38782
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spelling 2020-06-18T15:41:29.4328700 v2 38782 2018-02-19 Optimizing Carbon Dioxide Uptake and Carbon Dioxide-Methane Selectivity of Oxygen-Doped Porous Carbon Prepared from Oxygen Containing Polymer Precursors 92e452f20936d688d36f91c78574241d 0000-0002-2018-8288 Andrew Barron Andrew Barron true false 2018-02-19 CHEG The reproducible synthesis is reported for oxygen containing porous carbons (OPC) by the KOH activation at 500–800 °C of two oxygen containing precursor polymers: polyfurfuryl alcohol (PFFA) and polyanisyl alcohol (PAA) yielding FFA-OPC and AA-OPC, respectively. Both OPCs exhibits good thermal stability and reproducible gas uptake properties over multiple cycles. The surface area and pore volumes of the OPC are independent of the precursor identity, but controlled by the activation temperature. Similarly, the uptake of CO2 is determined by the physical properties of the OPC: activation at 750 °C results in uptake that equals or out-performs existing PCs for high pressure uptake (30 bar) at 24.0 °C (FFA-OPC750: 117 wt%; AA-OPC750: 115 wt%). The high uptake is related to a high relative percentage of pores &#60;2 nm. The uptake of CH4 for both OPCs is greatest for samples activation at 750 °C, FFA-OPC750 shows enhanced uptake compared to AA-OPC750, 15.5 wt% versus 13.7 wt%, respectively. Uptake for CH4 appears to relate to a high relative percentage of pores 1–2 nm, which is observed for AA-OPC750. As a consequence, AA-OPC750 demonstrates superior selectivity for CO2 capture over CH4 uptake (AA-OPC750: Vmass(CO2/CH4)=8.37 at 30 bar) as compared to reported PCs. A higher value for the isosteric heat of adsorption of CO2 (33 kJ mol−1) versus CH4 (11 kJ mol−1) suggests a new temperature dependent strategy for removing CO2 from natural gas via selective adsorption and desorption cycles. Journal Article ChemistrySelect 2 36 11959 11968 2365-6549 CO2 capture; Gas uptake; Pore volume; Surface area; Uptake selectivity 21 12 2017 2017-12-21 10.1002/slct.201701712 This paper debunks the commonly proposed rational for ever higher surface area materials for CO2 adsorption. The paper formed the basis of 3 US Patent applications (20170001170A1; 20180169611A1; 20170304801A1), and created international collaboration with Rice University (USA) and IMDEA Nanoscience (Spain). Apache Corporation have signed a sponsored research agreement to scale-up the materials as well as created a new IP (£160,000). The paper was the foundation for WP1 in £9.2 million WEFO project RICE (£1.2 million of the overall budget). Invited talk at International conference Windsor Energy Group Conference “Energy Transition” held at St George House, Windsor Castle (Feb 2019). COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University 2020-06-18T15:41:29.4328700 2018-02-19T12:50:51.6506604 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Saunab Ghosh 1 Andrew Barron 0000-0002-2018-8288 2 0038782-08032018093527.pdf ghosh2018.pdf 2018-03-08T09:35:27.4670000 Output 5765008 application/pdf Accepted Manuscript true 2018-12-21T00:00:00.0000000 true eng
title Optimizing Carbon Dioxide Uptake and Carbon Dioxide-Methane Selectivity of Oxygen-Doped Porous Carbon Prepared from Oxygen Containing Polymer Precursors
spellingShingle Optimizing Carbon Dioxide Uptake and Carbon Dioxide-Methane Selectivity of Oxygen-Doped Porous Carbon Prepared from Oxygen Containing Polymer Precursors
Andrew Barron
title_short Optimizing Carbon Dioxide Uptake and Carbon Dioxide-Methane Selectivity of Oxygen-Doped Porous Carbon Prepared from Oxygen Containing Polymer Precursors
title_full Optimizing Carbon Dioxide Uptake and Carbon Dioxide-Methane Selectivity of Oxygen-Doped Porous Carbon Prepared from Oxygen Containing Polymer Precursors
title_fullStr Optimizing Carbon Dioxide Uptake and Carbon Dioxide-Methane Selectivity of Oxygen-Doped Porous Carbon Prepared from Oxygen Containing Polymer Precursors
title_full_unstemmed Optimizing Carbon Dioxide Uptake and Carbon Dioxide-Methane Selectivity of Oxygen-Doped Porous Carbon Prepared from Oxygen Containing Polymer Precursors
title_sort Optimizing Carbon Dioxide Uptake and Carbon Dioxide-Methane Selectivity of Oxygen-Doped Porous Carbon Prepared from Oxygen Containing Polymer Precursors
author_id_str_mv 92e452f20936d688d36f91c78574241d
author_id_fullname_str_mv 92e452f20936d688d36f91c78574241d_***_Andrew Barron
author Andrew Barron
author2 Saunab Ghosh
Andrew Barron
format Journal article
container_title ChemistrySelect
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container_issue 36
container_start_page 11959
publishDate 2017
institution Swansea University
issn 2365-6549
doi_str_mv 10.1002/slct.201701712
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Chemical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Chemical Engineering
document_store_str 1
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description The reproducible synthesis is reported for oxygen containing porous carbons (OPC) by the KOH activation at 500–800 °C of two oxygen containing precursor polymers: polyfurfuryl alcohol (PFFA) and polyanisyl alcohol (PAA) yielding FFA-OPC and AA-OPC, respectively. Both OPCs exhibits good thermal stability and reproducible gas uptake properties over multiple cycles. The surface area and pore volumes of the OPC are independent of the precursor identity, but controlled by the activation temperature. Similarly, the uptake of CO2 is determined by the physical properties of the OPC: activation at 750 °C results in uptake that equals or out-performs existing PCs for high pressure uptake (30 bar) at 24.0 °C (FFA-OPC750: 117 wt%; AA-OPC750: 115 wt%). The high uptake is related to a high relative percentage of pores &#60;2 nm. The uptake of CH4 for both OPCs is greatest for samples activation at 750 °C, FFA-OPC750 shows enhanced uptake compared to AA-OPC750, 15.5 wt% versus 13.7 wt%, respectively. Uptake for CH4 appears to relate to a high relative percentage of pores 1–2 nm, which is observed for AA-OPC750. As a consequence, AA-OPC750 demonstrates superior selectivity for CO2 capture over CH4 uptake (AA-OPC750: Vmass(CO2/CH4)=8.37 at 30 bar) as compared to reported PCs. A higher value for the isosteric heat of adsorption of CO2 (33 kJ mol−1) versus CH4 (11 kJ mol−1) suggests a new temperature dependent strategy for removing CO2 from natural gas via selective adsorption and desorption cycles.
published_date 2017-12-21T03:49:10Z
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score 11.037056

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