Novel synthesis of a micro-mesoporous nitrogen-doped nanostructured carbon from polyaniline

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Title: Novel synthesis of a micro-mesoporous nitrogen-doped nanostructured carbon from polyaniline
Authors: Silvestre Albero, Ana | Silvestre-Albero, Joaquín | Martinez-Escandell, Manuel | Molina Sabio, Miguel | Kovacs, Andras | Rodríguez Reinoso, Francisco
Research Group/s: Materiales Avanzados
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Activated carbon | CO2 adsorption | Chemical activation | Eutectic mixture | Functional groups
Knowledge Area: Química Inorgánica
Issue Date: 1-Dec-2015
Publisher: Elsevier
Citation: Microporous and Mesoporous Materials. 2015, 218: 199-205. doi:10.1016/j.micromeso.2015.07.023
Abstract: Nanostructured carbons with relatively high nitrogen content (3–8%) and different micro and mesoporosity ratio were prepared by activation of polyaniline (PANI) with a ZnCl2–NaCl mixture in the proportion of the eutectic (melting point 270 °C). It was found that the activated carbons consisted of agglomerated nanoparticles. ZnCl2 plays a key role in the development of microporosity and promotes the binding between PANI nanoparticles during heat treatment, whereas NaCl acts as a template for the development of mesoporosity of larger size. Carbons with high micropore and mesopore volumes, above 0.6 and 0.8 cm3/g, respectively, have been obtained. Furthermore, these materials have been tested for CO2 capture and storage at pressures up to 4 MPa. The results indicate that the nitrogen groups present in the surface do not seem to affect to the amount of CO2 adsorbed, not detecting strong interactions between CO2 molecules and nitrogen functional groups of the carbon, which are mainly pyridinic and pyrrolic groups.
Sponsor: Authors acknowledge financial support from BroadBit Industry (BroadBit Slovakia s.r.o. Eötvösova ul. 12. 945 01, Komárno, Slovakia).
URI: http://hdl.handle.net/10045/57829
ISSN: 1387-1811 (Print) | 1873-3093 (Online)
DOI: 10.1016/j.micromeso.2015.07.023
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2015 Elsevier Inc.
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.micromeso.2015.07.023
Appears in Collections:INV - LMA - Artículos de Revistas

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