Textural characterization of micro- and mesoporous carbons using combined gas adsorption and n -nonane preadsorption
Oschatz M, Borchardt L, Rico-Frances S, Rodriguez-Reinoso F, Kaskel S, Sivestre-Abero J (2013)
Publication Type: Journal article
Publication year: 2013
Journal
Book Volume: 29
Pages Range: 8133-8139
Journal Issue: 25
DOI: 10.1021/la401206u
Abstract
Porous carbon and carbide materials with different structures were characterized using adsorption of nitrogen at 77.4 K before and after preadsorption of n-nonane. The selective blocking of the microporosity with n-nonane shows that ordered mesoporous silicon carbide material (OM-SiC) is almost exclusively mesoporous whereas the ordered mesoporous carbon CMK-3 contains a significant amount of micropores (∼25%). The insertion of micropores into OM-SiC using selective extraction of silicon by hot chlorine gas leads to the formation of ordered mesoporous carbide-derived carbon (OM-CDC) with a hierarchical pore structure and significantly higher micropore volume as compared to CMK-3, whereas a CDC material from a nonporous precursor is exclusively microporous. Volumes of narrow micropores, calculated by adsorption of carbon dioxide at 273 K, are in linear correlation with the volumes blocked by n-nonane. Argon adsorption measurements at 87.3 K allow for precise and reliable calculation of the pore size distribution of the materials using density functional theory (DFT) methods. © 2013 American Chemical Society.
Involved external institutions
Technische Universität Dresden
Germany (DE)
University of Alicante / Universidad de Alicante / Universitat d'Alacant
Spain (ES)
Germany (DE)
University of Alicante / Universidad de Alicante / Universitat d'Alacant
Spain (ES)
How to cite
APA:
Oschatz, M., Borchardt, L., Rico-Frances, S., Rodriguez-Reinoso, F., Kaskel, S., & Sivestre-Abero, J. (2013). Textural characterization of micro- and mesoporous carbons using combined gas adsorption and n -nonane preadsorption. Langmuir, 29(25), 8133-8139. https://doi.org/10.1021/la401206u
MLA:
Oschatz, Martin, et al. "Textural characterization of micro- and mesoporous carbons using combined gas adsorption and n -nonane preadsorption." Langmuir 29.25 (2013): 8133-8139.
BibTeX: Download