[n]-Oligourea-Based Green Sorbents with Enhanced CO2 Sorption Capacity

Abdussalam K. Qaroush; Dante A. Castillo-Molina; Carsten Troll; Malyuba A. Abu-Daabes; Hatem M. Alsyouri; Adnan S. Abu-Surrah; Bernhard Rieger

doi:10.1002/cssc.201402828

[n]-Oligourea-Based Green Sorbents with Enhanced CO2 Sorption Capacity

Abdussalam K. Qaroush, Dante A. Castillo-Molina, Carsten Troll, Malyuba A. Abu-Daabes, Hatem M. Alsyouri, Adnan S. Abu-Surrah, Bernhard Rieger

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

A new series of [n]-oligoureas ([n]-OUs, n=4, 7, 10, and 12) green solid sorbents was prepared following a base-catalyzed, microwave-assisted oligomerization reaction. The materials were characterized by NMR and IR spectroscopy, elemental analysis, thermogravimetric analysis, differential scanning calorimetry, and XRD. Decomposition temperatures at 50 % weight loss (Td50) were ca. 350 °C for all oligomers. Urea and urethane functional groups indicated by IR spectroscopy confirmed the formation of the sorbent. The CO2 capturing capacities were determined at 35 °C and 1.0 bar (gravimetric method). Accordingly, [10]-OU had the highest CO2 sorption capacity among the others (18.90 and 22.70 mg CO 2 gsorbent-1) at two different activation temperatures (60 or 100 °C, respectively). Chemisorption was the principal mechanism for CO2 capture. Cyclic CO2 sorption/desorption measurements were carried out to test the recyclability of [10]-OU. Activating the sample at 60 °C, three stable CO2 sorption cycles were achieved after running the first cycle.

Original language	English (US)
Pages (from-to)	1618-1626
Number of pages	9
Journal	CHEMSUSCHEM
Volume	8
Issue number	9
DOIs	https://doi.org/10.1002/cssc.201402828
State	Published - 2015
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2021-10-15
Acknowledged KAUST grant number(s): KSAC0069/UK-C0020
Acknowledgements: The work presented here is a Part of a PhD thesis of A.K.Q. A.K.Q. is thankful to King Abdullah University for Science and Technology, KAUST for the financial support of the scholarship of his PhD (project: KSAC0069/UK-C0020). Deutsche Forschungs Gemeinschaft (DFG) is also thanked for partially supporting this work (project: RI 613/17-1). Thanks are also expressed to Mr. Abdel Jaber A. Alabdallah for providing us with the Table-of-Contents Figure. In addition, Mr. Maximilian W. Hahn is also thanked for his great help upon performing the HP-TGA experiments. Thanks are also to TUM Graduate School (TUM-GS) for their help in supporting this work.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

ASJC Scopus subject areas

General Energy
Environmental Chemistry
General Materials Science
General Chemical Engineering

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10.1002/cssc.201402828

Cite this

@article{4f3eb7d66cb24294b7d93a323a760ab0,

title = "[n]-Oligourea-Based Green Sorbents with Enhanced CO2 Sorption Capacity",

abstract = "A new series of [n]-oligoureas ([n]-OUs, n=4, 7, 10, and 12) green solid sorbents was prepared following a base-catalyzed, microwave-assisted oligomerization reaction. The materials were characterized by NMR and IR spectroscopy, elemental analysis, thermogravimetric analysis, differential scanning calorimetry, and XRD. Decomposition temperatures at 50 % weight loss (Td50) were ca. 350 °C for all oligomers. Urea and urethane functional groups indicated by IR spectroscopy confirmed the formation of the sorbent. The CO2 capturing capacities were determined at 35 °C and 1.0 bar (gravimetric method). Accordingly, [10]-OU had the highest CO2 sorption capacity among the others (18.90 and 22.70 mg CO 2 gsorbent-1) at two different activation temperatures (60 or 100 °C, respectively). Chemisorption was the principal mechanism for CO2 capture. Cyclic CO2 sorption/desorption measurements were carried out to test the recyclability of [10]-OU. Activating the sample at 60 °C, three stable CO2 sorption cycles were achieved after running the first cycle.",

author = "Qaroush, {Abdussalam K.} and Castillo-Molina, {Dante A.} and Carsten Troll and Abu-Daabes, {Malyuba A.} and Alsyouri, {Hatem M.} and Abu-Surrah, {Adnan S.} and Bernhard Rieger",

note = "KAUST Repository Item: Exported on 2021-10-15 Acknowledged KAUST grant number(s): KSAC0069/UK-C0020 Acknowledgements: The work presented here is a Part of a PhD thesis of A.K.Q. A.K.Q. is thankful to King Abdullah University for Science and Technology, KAUST for the financial support of the scholarship of his PhD (project: KSAC0069/UK-C0020). Deutsche Forschungs Gemeinschaft (DFG) is also thanked for partially supporting this work (project: RI 613/17-1). Thanks are also expressed to Mr. Abdel Jaber A. Alabdallah for providing us with the Table-of-Contents Figure. In addition, Mr. Maximilian W. Hahn is also thanked for his great help upon performing the HP-TGA experiments. Thanks are also to TUM Graduate School (TUM-GS) for their help in supporting this work. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2015",

doi = "10.1002/cssc.201402828",

language = "English (US)",

volume = "8",

pages = "1618--1626",

journal = "CHEMSUSCHEM",

issn = "1864-564X",

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T1 - [n]-Oligourea-Based Green Sorbents with Enhanced CO2 Sorption Capacity

AU - Qaroush, Abdussalam K.

AU - Castillo-Molina, Dante A.

AU - Troll, Carsten

AU - Abu-Daabes, Malyuba A.

AU - Alsyouri, Hatem M.

AU - Abu-Surrah, Adnan S.

AU - Rieger, Bernhard

N1 - KAUST Repository Item: Exported on 2021-10-15 Acknowledged KAUST grant number(s): KSAC0069/UK-C0020 Acknowledgements: The work presented here is a Part of a PhD thesis of A.K.Q. A.K.Q. is thankful to King Abdullah University for Science and Technology, KAUST for the financial support of the scholarship of his PhD (project: KSAC0069/UK-C0020). Deutsche Forschungs Gemeinschaft (DFG) is also thanked for partially supporting this work (project: RI 613/17-1). Thanks are also expressed to Mr. Abdel Jaber A. Alabdallah for providing us with the Table-of-Contents Figure. In addition, Mr. Maximilian W. Hahn is also thanked for his great help upon performing the HP-TGA experiments. Thanks are also to TUM Graduate School (TUM-GS) for their help in supporting this work. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2015

Y1 - 2015

N2 - A new series of [n]-oligoureas ([n]-OUs, n=4, 7, 10, and 12) green solid sorbents was prepared following a base-catalyzed, microwave-assisted oligomerization reaction. The materials were characterized by NMR and IR spectroscopy, elemental analysis, thermogravimetric analysis, differential scanning calorimetry, and XRD. Decomposition temperatures at 50 % weight loss (Td50) were ca. 350 °C for all oligomers. Urea and urethane functional groups indicated by IR spectroscopy confirmed the formation of the sorbent. The CO2 capturing capacities were determined at 35 °C and 1.0 bar (gravimetric method). Accordingly, [10]-OU had the highest CO2 sorption capacity among the others (18.90 and 22.70 mg CO 2 gsorbent-1) at two different activation temperatures (60 or 100 °C, respectively). Chemisorption was the principal mechanism for CO2 capture. Cyclic CO2 sorption/desorption measurements were carried out to test the recyclability of [10]-OU. Activating the sample at 60 °C, three stable CO2 sorption cycles were achieved after running the first cycle.

AB - A new series of [n]-oligoureas ([n]-OUs, n=4, 7, 10, and 12) green solid sorbents was prepared following a base-catalyzed, microwave-assisted oligomerization reaction. The materials were characterized by NMR and IR spectroscopy, elemental analysis, thermogravimetric analysis, differential scanning calorimetry, and XRD. Decomposition temperatures at 50 % weight loss (Td50) were ca. 350 °C for all oligomers. Urea and urethane functional groups indicated by IR spectroscopy confirmed the formation of the sorbent. The CO2 capturing capacities were determined at 35 °C and 1.0 bar (gravimetric method). Accordingly, [10]-OU had the highest CO2 sorption capacity among the others (18.90 and 22.70 mg CO 2 gsorbent-1) at two different activation temperatures (60 or 100 °C, respectively). Chemisorption was the principal mechanism for CO2 capture. Cyclic CO2 sorption/desorption measurements were carried out to test the recyclability of [10]-OU. Activating the sample at 60 °C, three stable CO2 sorption cycles were achieved after running the first cycle.

UR - http://hdl.handle.net/10754/672850

UR - http://doi.wiley.com/10.1002/cssc.201402828

UR - http://www.scopus.com/inward/record.url?scp=84929074176&partnerID=8YFLogxK

U2 - 10.1002/cssc.201402828

DO - 10.1002/cssc.201402828

M3 - Article

SN - 1864-564X

VL - 8

SP - 1618

EP - 1626

JO - CHEMSUSCHEM

JF - CHEMSUSCHEM

IS - 9

ER -

[n]-Oligourea-Based Green Sorbents with Enhanced CO2 Sorption Capacity

Abstract

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ASJC Scopus subject areas

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