Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/39188
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Araújo, Rui Filipe | por |
dc.contributor.author | Proença, M. Fernanda R. P. | por |
dc.contributor.author | Silva, Carlos J. R. | por |
dc.contributor.author | Castro, Tarsila Gabriel | por |
dc.contributor.author | Melle-Franco, M. | por |
dc.contributor.author | Paiva, M. C. | por |
dc.contributor.author | Vilar-Rodil, Silvia | por |
dc.contributor.author | Tascón, Juan Manuel D. | por |
dc.date.accessioned | 2016-01-04T15:47:05Z | - |
dc.date.available | 2016-01-04T15:47:05Z | - |
dc.date.issued | 2016-03 | - |
dc.date.submitted | 2015-06 | - |
dc.identifier.citation | R.F. Araújo, M.F. Proença, C.J. Silva, T.G. Castro, M. Melle-Franco, M.C. Paiva, S. Vilar-Rodil, J.M.D. Tascón, Grafting of adipic anhydride to carbon nanotubes through a Diels- Alder cycloaddition/oxidation cascade reaction, Carbon (2015), doi: 10.1016/j.carbon.2015.11.004 | por |
dc.identifier.issn | 0008-6223 | por |
dc.identifier.uri | https://hdl.handle.net/1822/39188 | - |
dc.description | Accepted Manuscript | por |
dc.description.abstract | Different reactions have been reported for the successful functionalization of carbon nanotubes (CNT). The Diels-Alder cycloaddition is recognized as a plausible chemical approach, but few reports are known where this strategy has been used. In this study, the functionalization was performed by 1,3-butadiene generated from 3-sulfolene under heating conditions in diglyme. This simple and easily scalable method resulted in functionalized CNT with mass losses of 10 - 23 % by thermogravimetric analysis (nitrogen atmosphere). The functionalization was also supported by acid-base titration, elemental analysis, temperature programmed desorption and X-ray photoelectron spectroscopy. The high content in oxygen detected on the CNT surface was assigned to anhydride formation due to a cascade oxidation of the alkene groups generated in the cycloaddition reaction. The complete evolution of the alkene leads to a grafting density of 4.2 mmol g-1 for the anhydride moiety. Ab-initio calculations in CNT model systems indicate that the Diels-Alder addition of butadiene is a feasible process and that subsequent oxidation reactions may result in the formation of the anhydride moiety. The presence of the anhydride group is a valuable asset for grafting a multitude of complex molecules, namely through the nucleophilic addition of amines. | por |
dc.description.sponsorship | Centro de Química and Instituto de Polímeros e Compósitos of the University of Minho and Fundação para a Ciência e Tecnologia (FCT) through the Portuguese NMR network (RNRMN), the Project F-COMP-01-0124-FEDER-022716 (ref. FCT PEst-C/QUI/UI0686/2011) FEDER-COMPETE, Project PEst-C/CTM/LA0025/2013 (Strategic Project - LA 25-2013-2014) and also Project Scope UID/CEC/00319/2013. TG Castro acknowledges FCT for a doctoral grant (SFRH/BD/79195/2011) RF Araújo for a Post-doc grant (SFRH/BPD/88920/2012) and MMF also acknowledges FCT through the program Ciência 2008. Access to computing resources funded by the Project "Search-ON2: Revitalization of HPC infrastructure of UMinho" (NORTE-07-0162-FEDER-000086) is also gratefully acknowledged. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132964/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147280/PT | por |
dc.relation | PEst-C/QUI/UI0686/2011 | - |
dc.relation | info:eu-repo/grantAgreement/FCT/5876/147280/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F79195%2F2011/PT | - |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F88920%2F2012/PT | - |
dc.rights | openAccess | por |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | por |
dc.subject | Carbon nanotubes | por |
dc.subject | Diels-Alder cycloaddition reaction | por |
dc.subject | Functionalization | por |
dc.title | Grafting of adipic anhydride to carbon nanotubes through a Diels-Alder cycloaddition/oxidation cascade reaction | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0008622315304152 | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 421 | por |
oaire.citationEndPage | 431 | por |
oaire.citationTitle | Carbon | por |
oaire.citationVolume | 98 | por |
dc.identifier.doi | 10.1016/j.carbon.2015.11.004 | por |
dc.subject.fos | Ciências Naturais::Ciências Químicas | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Carbon | por |
Aparece nas coleções: | CAlg - Artigos em revistas internacionais / Papers in international journals CDQuim - Artigos (Papers) IPC - Artigos em revistas científicas internacionais com arbitragem |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Carbon 2015.pdf | 1,8 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons