Nitration and reduction route to surface groups of mesoporous carbons obtained from sucrose and phloroglucinol/formaldehyde precursors

2015
journal article
article
9
cris.lastimport.wos2024-04-09T19:07:19Z
dc.abstract.enMesoporous ordered carbons were obtained from two precursors, sucrose and phloroglucinol/formaldehyde, using a hard-template and a soft-template method, respectively. The surface of the materials was modified with the –NH2 groups via nitration and subsequent reduction of the resulting –NO2 groups. The modified carbon materials were investigated by elemental analysis, Boehm titration, nitrogen sorption, XRD, TEM, thermal analysis including TPD, as well as XPS and Raman spectroscopy. Apart from the –NO2 groups, the nitration step resulted in formation of the oxygen-rich surface species, the concentration of which decreased after reduction. This concerned especially the carboxylic groups, a part of which transformed into the amino acetate type of species. The sucrose-based method resulted in the materials with more abounding acidic groups then in the case of the phloroglucinol-based route. The number of the acidic groups decreased after the nitration in the following order: CMK-1 > CMK-3 >> CMK-8. On the contrary, the resistance of the carbon structures to the nitration/reduction processes conformed to the order of CMC-1 > CMK-3 >> CMK-1 ∼ CMK-8. The nitrogen content after the amination step exceeded slightly 2 wt.%. Such surface modifications provided attachment of the TCPP ligands, the amount of which ranged between ca. 30–60 wt.%.pl
dc.affiliationWydział Chemii : Zakład Chemii Nieorganicznejpl
dc.contributor.authorPietrzyk, Piotr - 131389 pl
dc.contributor.authorLeżańska, Mariapl
dc.contributor.authorDudek, Annapl
dc.contributor.authorWłoch, Jerzypl
dc.date.accessioned2015-07-07T09:41:46Z
dc.date.available2015-07-07T09:41:46Z
dc.date.issued2015pl
dc.description.physical539-552pl
dc.description.volume149-150pl
dc.identifier.doi10.1016/j.matchemphys.2014.11.004pl
dc.identifier.eissn1879-3312pl
dc.identifier.issn0254-0584pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/11913
dc.languageengpl
dc.language.containerengpl
dc.rights.licencebez licencji
dc.subtypeArticlepl
dc.titleNitration and reduction route to surface groups of mesoporous carbons obtained from sucrose and phloroglucinol/formaldehyde precursorspl
dc.title.journalMaterials Chemistry and Physicspl
dc.typeJournalArticlepl
dspace.entity.typePublication
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