CO2 Adsorption by para-Nitroaniline Sulfuric Acid-Derived Porous Carbon Foam

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dc.citation.articleNumber25
dc.citation.issueNumber4
dc.citation.journalTitleJournal of Carbon Research
dc.citation.volumeNumber2
dc.contributor.authorAndreoli, Enrico
dc.contributor.authorBarron, Andrew R.
dc.date.accessioned2017-01-30T17:29:31Z
dc.date.available2017-01-30T17:29:31Z
dc.date.issued2016
dc.description.abstractThe expansion product from the sulfuric acid dehydration of para-nitroaniline has been characterized and studied for CO2 adsorption. The X-ray photoelectron spectroscopy (XPS) characterization of the foam indicates that both N and S contents (15 and 9 wt%, respectively) are comparable to those separately reported for nitrogen- or sulfur-containing porous carbon materials. The analysis of the XPS signals of C1s, O1s, N1s, and S2p reveals the presence of a large number of functional groups and chemical species. The CO2 adsorption capacity of the foam is 7.9 wt% (1.79 mmol/g) at 24.5 °C and 1 atm in 30 min, while the integral molar heat of adsorption is 113.6 kJ/mol, indicative of the fact that chemical reactions characteristic of amine sorbents are observed for this type of carbon foam. The kinetics of adsorption is of pseudo-first-order with an extrapolated activation energy of 18.3 kJ/mol comparable to that of amine-modified nanocarbons. The richness in functionalities of H2SO4-expanded foams represents a valuable and further pursuable approach to porous carbons alternative to KOH-derived activated carbons.
dc.identifier.citationAndreoli, Enrico and Barron, Andrew R.. "CO2 Adsorption by para-Nitroaniline Sulfuric Acid-Derived Porous Carbon Foam." <i>Journal of Carbon Research,</i> 2, no. 4 (2016) MDPI: http://dx.doi.org/10.3390/c2040025.
dc.identifier.doihttp://dx.doi.org/10.3390/c2040025
dc.identifier.urihttps://hdl.handle.net/1911/93812
dc.language.isoeng
dc.publisherMDPI
dc.rightsThis article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.subject.keywordporous carbon
dc.subject.keywordnitrogen
dc.subject.keywordsulfur
dc.subject.keywordCO2
dc.subject.keywordnitroaniline
dc.subject.keywordsulfuric acid
dc.titleCO2 Adsorption by para-Nitroaniline Sulfuric Acid-Derived Porous Carbon Foam
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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