Micro/Mesoporous Activated Carbons Derived from Polyaniline: Promising Candidates for CO2 Adsorption

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/46289
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dc.contributorMateriales Avanzadoses
dc.contributor.authorSilvestre Albero, Ana-
dc.contributor.authorSilvestre-Albero, Joaquín-
dc.contributor.authorMartinez-Escandell, Manuel-
dc.contributor.authorRodríguez Reinoso, Francisco-
dc.contributor.otherUniversidad de Alicante. Departamento de Química Inorgánicaes
dc.contributor.otherUniversidad de Alicante. Instituto Universitario de Materialeses
dc.identifier.citationIndustrial & Engineering Chemistry Research. 2014, 53(40): 15398-15405. doi:10.1021/ie5013129es
dc.identifier.issn0888-5885 (Print)-
dc.identifier.issn1520-5045 (Online)-
dc.description.abstractA series of activated carbons were prepared by carbonization of polyaniline at different temperatures, using KOH or K2CO3 as activating agent. Pure microporous or micro/mesoporous activated carbons were obtained depending on the preparation conditions. Carbonization temperature has been proven to be a key parameter to define the textural properties of the carbon when using KOH. Low carbonization temperatures (400–650 °C) yield materials with a highly developed micro- and mesoporous structure, whereas high temperatures (800 °C) yield microporous carbons. Some of the materials prepared using KOH exhibit a BET surface area superior to 4000 m2/g, with total pore volume exceeding 2.5 cm3/g, which are among the largest found for activated carbons. On the other hand, microporous materials are obtained when using K2CO3, independently of carbonization temperature. Some of the materials were tested for CO2 capture due to their high microporosity and N content. The adsorption capacity for CO2 at atmospheric pressure and 0 °C achieves a value of ∼7.6 mmol CO2/g, which is among the largest reported in the literature. This study provides guidelines for the design of activated carbons with a proper N/C ratio for CO2 capture at atmospheric pressure.es
dc.description.sponsorshipAuthors acknowledge financial support from BroadBit industry (BroadBit Slovakia s.r.o. Eötvösova ul. 12. 945 01, Komárno, Slovakia).es
dc.publisherAmerican Chemical Societyes
dc.rights© 2014 American Chemical Societyes
dc.subjectActivated carbonses
dc.subjectCO2 adsorptiones
dc.subject.otherQuímica Inorgánicaes
dc.titleMicro/Mesoporous Activated Carbons Derived from Polyaniline: Promising Candidates for CO2 Adsorptiones
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