Estimating pore size distributions of activated carbons via optical calorimetry

Woellner M, Leistner M, Wollmann P, Benusch M, Klein N, Graehlert W, Kaskel S (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Adsorption-Journal of the International Adsorption Society Springer Verlag (Germany)

Book Volume: 23

Pages Range: 313-320

Journal Issue: 2-3

DOI: 10.1007/s10450-016-9852-3

Abstract

Optical calorimetry is a powerful technique for the characterization of porous materials within only a few minutes (e.g. specific surface area, adsorption capacity). In the current work, optical calorimetry is presented to be a versatile tool for the pore size characterization of activated carbons. Therefore, measurements were performed with six different test gases (N2O, C2H6, C3H8, n-C4H10, i-C4H10, SF6) in the optical calorimeter InfraSORP at ambient conditions. By combining the results of optical calorimetric measurement for each adsorptive, a pore size distribution (PSD) can be estimated in the range of 0.4–6 nm which is in accurate accordance with the PSD of reference CO2 (273 K) and N2 (77 K) physisorption experiments. While common physisorption experiments can easily take a few days, the PSD by using the optical calorimetric screening is obtained within roughly 1 h.

Involved external institutions

Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS) / Fraunhofer Institute for Material and Beam Technology DE Germany (DE)

How to cite

APA:

Woellner, M., Leistner, M., Wollmann, P., Benusch, M., Klein, N., Graehlert, W., & Kaskel, S. (2017). Estimating pore size distributions of activated carbons via optical calorimetry. Adsorption-Journal of the International Adsorption Society, 23(2-3), 313-320. https://doi.org/10.1007/s10450-016-9852-3

MLA:

Woellner, Michelle, et al. "Estimating pore size distributions of activated carbons via optical calorimetry." Adsorption-Journal of the International Adsorption Society 23.2-3 (2017): 313-320.

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