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High surface area microporous carbon nanocubes from controlled processing of graphene oxide nanoribbons

Saeed Khodabakhshi Orcid Logo, Pasquale F. Fulvio, Krista S. Walton, Sajad Kiani Orcid Logo, Yubiao Niu, Richard Palmer Orcid Logo, Andrew Barron Orcid Logo, Enrico Andreoli Orcid Logo

Carbon, Volume: 221, Start page: 118940

Swansea University Authors: Sajad Kiani Orcid Logo, Yubiao Niu, Richard Palmer Orcid Logo, Andrew Barron Orcid Logo, Enrico Andreoli Orcid Logo

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Abstract

A new, facile, and template-free method to prepare high surface area microporous carbon nanocubes (CNCs) from a mixture of graphene oxide nanoribbons (NRs), graphene oxide, and carbon dots is reported. The nanoribbons, approximately 30 nm wide and with lengths ranging from a few tens of nanometres u...

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Published in: Carbon
ISSN: 0008-6223
Published: Elsevier BV 2024
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URI: https://cronfa.swan.ac.uk/Record/cronfa65836
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The nanoribbons, approximately 30 nm wide and with lengths ranging from a few tens of nanometres up to several micrometres, were obtained from the oxidation of Black Pearls 2000 carbon black in nitric acid solution. The non-purified nanoribbons further contained additional fragments of graphene oxide, and of graphene oxide quantum dots. Slow pyrolysis of the nanoribbon mixture with slow heating rates, e.g., 3 °C/min, yielded carbon nanocubes approximately 250 nm in size with surface areas greater than 900 m2/g. Heating rates of 50 °C/min led to carbons with ∼800 m2/g surface area but bulk morphology. Precipitating the nanoribbons in potassium hydroxide solution, followed by carbonization, yielded microporous nanoparticle aggregates that were 20 nm in size with surface areas greater than 2000 m2/g. The particles exhibited complex, quasi-spherical morphology. Pyrolysis of other products obtained from oxidation in HNO3 of different grades of carbon black, specifically graphene oxide nanoparticles and quantum dots, yielded high surface area microporous carbons but with bulk morphology regardless of the processing conditions. Despite the lower surface area and pore volume of the CNCs in comparison to the nanospheres, the former contained ultramicropores that were highly accessible to CO2 as a molecular probe and had excellent selectivity of CO2 over N2. Hence, CNC materials have promising properties for applications where particle surface-to-volume ratios, high internal surface areas, and abundant super and ultramicropores are desired.</abstract><type>Journal Article</type><journal>Carbon</journal><volume>221</volume><journalNumber/><paginationStart>118940</paginationStart><paginationEnd/><publisher>Elsevier BV</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>0008-6223</issnPrint><issnElectronic/><keywords>Nanocubes; Carbon black; Nanoribbons; CO2 capture; Microporous carbon</keywords><publishedDay>1</publishedDay><publishedMonth>3</publishedMonth><publishedYear>2024</publishedYear><publishedDate>2024-03-01</publishedDate><doi>10.1016/j.carbon.2024.118940</doi><url/><notes/><college>COLLEGE NANME</college><department>Chemical Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>CHEG</DepartmentCode><institution>Swansea University</institution><apcterm>SU Library paid the OA fee (TA Institutional Deal)</apcterm><funders>S. K. wishes to acknowledge funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska‐Curie grant agreement No 663830. Financial support was also provided by the Reduce Industrial Carbon Emissions (RICE) research operation part-funded by the EU's European Regional Development Fund through the Welsh Government. The authors would also like to acknowledge the assistance provided by the Swansea University AIM Facility, which was funded in part by the EPSRC (EP/M028267/1), the European Regional Development Fund through the Welsh Government (80708) and the Sêr Solar project via the Welsh Government. Use of the TAMU Materials Characterization Facility for AFM and HRTEM, and Dr. Winson C. H. Kuo are acknowledged. 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spelling v2 65836 2024-03-13 High surface area microporous carbon nanocubes from controlled processing of graphene oxide nanoribbons fe9ec46699e095368faf2a0465b598c5 0000-0003-1609-6855 Sajad Kiani Sajad Kiani true false c403a40f2acf2dc32e37b4555d19b4c0 Yubiao Niu Yubiao Niu true false 6ae369618efc7424d9774377536ea519 0000-0001-8728-8083 Richard Palmer Richard Palmer true false 92e452f20936d688d36f91c78574241d 0000-0002-2018-8288 Andrew Barron Andrew Barron true false cbd843daab780bb55698a3daccd74df8 0000-0002-1207-2314 Enrico Andreoli Enrico Andreoli true false 2024-03-13 CHEG A new, facile, and template-free method to prepare high surface area microporous carbon nanocubes (CNCs) from a mixture of graphene oxide nanoribbons (NRs), graphene oxide, and carbon dots is reported. The nanoribbons, approximately 30 nm wide and with lengths ranging from a few tens of nanometres up to several micrometres, were obtained from the oxidation of Black Pearls 2000 carbon black in nitric acid solution. The non-purified nanoribbons further contained additional fragments of graphene oxide, and of graphene oxide quantum dots. Slow pyrolysis of the nanoribbon mixture with slow heating rates, e.g., 3 °C/min, yielded carbon nanocubes approximately 250 nm in size with surface areas greater than 900 m2/g. Heating rates of 50 °C/min led to carbons with ∼800 m2/g surface area but bulk morphology. Precipitating the nanoribbons in potassium hydroxide solution, followed by carbonization, yielded microporous nanoparticle aggregates that were 20 nm in size with surface areas greater than 2000 m2/g. The particles exhibited complex, quasi-spherical morphology. Pyrolysis of other products obtained from oxidation in HNO3 of different grades of carbon black, specifically graphene oxide nanoparticles and quantum dots, yielded high surface area microporous carbons but with bulk morphology regardless of the processing conditions. Despite the lower surface area and pore volume of the CNCs in comparison to the nanospheres, the former contained ultramicropores that were highly accessible to CO2 as a molecular probe and had excellent selectivity of CO2 over N2. Hence, CNC materials have promising properties for applications where particle surface-to-volume ratios, high internal surface areas, and abundant super and ultramicropores are desired. Journal Article Carbon 221 118940 Elsevier BV 0008-6223 Nanocubes; Carbon black; Nanoribbons; CO2 capture; Microporous carbon 1 3 2024 2024-03-01 10.1016/j.carbon.2024.118940 COLLEGE NANME Chemical Engineering COLLEGE CODE CHEG Swansea University SU Library paid the OA fee (TA Institutional Deal) S. K. wishes to acknowledge funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska‐Curie grant agreement No 663830. Financial support was also provided by the Reduce Industrial Carbon Emissions (RICE) research operation part-funded by the EU's European Regional Development Fund through the Welsh Government. The authors would also like to acknowledge the assistance provided by the Swansea University AIM Facility, which was funded in part by the EPSRC (EP/M028267/1), the European Regional Development Fund through the Welsh Government (80708) and the Sêr Solar project via the Welsh Government. Use of the TAMU Materials Characterization Facility for AFM and HRTEM, and Dr. Winson C. H. Kuo are acknowledged. Use of the GT IEN/IMAT Materials Characterization Facility for XPS and Raman Mapping is acknowledged. 2024-03-13T12:37:05.3901643 2024-03-13T12:26:35.4702608 Faculty of Science and Engineering School of Engineering and Applied Sciences - Chemical Engineering Saeed Khodabakhshi 0000-0002-8096-6854 1 Pasquale F. Fulvio 2 Krista S. Walton 3 Sajad Kiani 0000-0003-1609-6855 4 Yubiao Niu 5 Richard Palmer 0000-0001-8728-8083 6 Andrew Barron 0000-0002-2018-8288 7 Enrico Andreoli 0000-0002-1207-2314 8 65836__29709__56dc81adc04243fd8efa5ad0c86a2d78.pdf 65836_VoR.pdf 2024-03-13T12:35:47.1928198 Output 9342665 application/pdf Version of Record true ©2024 TheAuthors. This is an open access article under the CC BY license. true eng https://creativecommons.org/licenses/by/4.0/
title High surface area microporous carbon nanocubes from controlled processing of graphene oxide nanoribbons
spellingShingle High surface area microporous carbon nanocubes from controlled processing of graphene oxide nanoribbons
Sajad Kiani
Yubiao Niu
Richard Palmer
Andrew Barron
Enrico Andreoli
title_short High surface area microporous carbon nanocubes from controlled processing of graphene oxide nanoribbons
title_full High surface area microporous carbon nanocubes from controlled processing of graphene oxide nanoribbons
title_fullStr High surface area microporous carbon nanocubes from controlled processing of graphene oxide nanoribbons
title_full_unstemmed High surface area microporous carbon nanocubes from controlled processing of graphene oxide nanoribbons
title_sort High surface area microporous carbon nanocubes from controlled processing of graphene oxide nanoribbons
author_id_str_mv fe9ec46699e095368faf2a0465b598c5
c403a40f2acf2dc32e37b4555d19b4c0
6ae369618efc7424d9774377536ea519
92e452f20936d688d36f91c78574241d
cbd843daab780bb55698a3daccd74df8
author_id_fullname_str_mv fe9ec46699e095368faf2a0465b598c5_***_Sajad Kiani
c403a40f2acf2dc32e37b4555d19b4c0_***_Yubiao Niu
6ae369618efc7424d9774377536ea519_***_Richard Palmer
92e452f20936d688d36f91c78574241d_***_Andrew Barron
cbd843daab780bb55698a3daccd74df8_***_Enrico Andreoli
author Sajad Kiani
Yubiao Niu
Richard Palmer
Andrew Barron
Enrico Andreoli
author2 Saeed Khodabakhshi
Pasquale F. Fulvio
Krista S. Walton
Sajad Kiani
Yubiao Niu
Richard Palmer
Andrew Barron
Enrico Andreoli
format Journal article
container_title Carbon
container_volume 221
container_start_page 118940
publishDate 2024
institution Swansea University
issn 0008-6223
doi_str_mv 10.1016/j.carbon.2024.118940
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
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
active_str 0
description A new, facile, and template-free method to prepare high surface area microporous carbon nanocubes (CNCs) from a mixture of graphene oxide nanoribbons (NRs), graphene oxide, and carbon dots is reported. The nanoribbons, approximately 30 nm wide and with lengths ranging from a few tens of nanometres up to several micrometres, were obtained from the oxidation of Black Pearls 2000 carbon black in nitric acid solution. The non-purified nanoribbons further contained additional fragments of graphene oxide, and of graphene oxide quantum dots. Slow pyrolysis of the nanoribbon mixture with slow heating rates, e.g., 3 °C/min, yielded carbon nanocubes approximately 250 nm in size with surface areas greater than 900 m2/g. Heating rates of 50 °C/min led to carbons with ∼800 m2/g surface area but bulk morphology. Precipitating the nanoribbons in potassium hydroxide solution, followed by carbonization, yielded microporous nanoparticle aggregates that were 20 nm in size with surface areas greater than 2000 m2/g. The particles exhibited complex, quasi-spherical morphology. Pyrolysis of other products obtained from oxidation in HNO3 of different grades of carbon black, specifically graphene oxide nanoparticles and quantum dots, yielded high surface area microporous carbons but with bulk morphology regardless of the processing conditions. Despite the lower surface area and pore volume of the CNCs in comparison to the nanospheres, the former contained ultramicropores that were highly accessible to CO2 as a molecular probe and had excellent selectivity of CO2 over N2. Hence, CNC materials have promising properties for applications where particle surface-to-volume ratios, high internal surface areas, and abundant super and ultramicropores are desired.
published_date 2024-03-01T12:37:02Z
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