Towards a better understanding of water adsorption hysteresis in activated carbons by scanning isotherms.

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(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Velasco LF, Guillet-Nicolas R, Dobos G, Thommes M, Lodewyckx P
Zeitschrift: Carbon
Verlag: Elsevier Ltd.
Jahr der Veröffentlichung: 2016
Band: 96
Seitenbereich: 753-758
ISSN: 0008-6223


Abstract

The occurrence of water sorption hysteresis assocd. with the filling of micro and narrow mesopores (particularly for pores of widths smaller than ca. 3 nm, where nitrogen and argon isotherms at their boiling temps., i.e. 77 K and 87 K, resp., are known to be reversible) provides addnl. opportunities for textural characterization. In this work systematic water scanning desorption isotherms within the hysteresis loop were carried out on well-characterized activated carbons with varied textural features and surface chem. Accurate micro-mesopore anal. was obtained by means of nitrogen, argon and carbon dioxide adsorption expts. coupled with advanced d. functional theory methods (i.e., NLDFT, QSDFT). The obtained results indicated that water adsorption/desorption phenomena for pores of different sizes take place independently from each other. This investigation constitutes a starting point for the interpretation of water adsorption hysteresis by means of scanning desorption measurements. [on SciFinder(R)]


Einrichtungen weiterer Autorinnen und Autoren

Budapest University of Technology and Economics (BME) / Budapesti Műszaki és Gazdaságtudományi Egyetem
Quantachrome Instruments
Royal Military Academy / École royale militaire/ Koninklijke Militaire School


Zitierweisen

APA:
Velasco, L.F., Guillet-Nicolas, R., Dobos, G., Thommes, M., & Lodewyckx, P. (2016). Towards a better understanding of water adsorption hysteresis in activated carbons by scanning isotherms. Carbon, 96, 753-758. https://dx.doi.org/10.1016/j.carbon.2015.10.017

MLA:
Velasco, Leticia F., et al. "Towards a better understanding of water adsorption hysteresis in activated carbons by scanning isotherms." Carbon 96 (2016): 753-758.

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Zuletzt aktualisiert 2019-27-02 um 14:38