Towards a better understanding of water adsorption hysteresis in activated carbons by scanning isotherms.
Velasco LF, Guillet-Nicolas R, Dobos G, Thommes M, Lodewyckx P (2016)
Publication Type: Journal article, Original article
Subtype: other
Publication year: 2016
Journal
Publisher: Elsevier Ltd.
Book Volume: 96
Pages Range: 753-758
DOI: 10.1016/j.carbon.2015.10.017
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)]
Authors with CRIS profile
Involved external institutions
Royal Military Academy / École royale militaire/ Koninklijke Militaire School
Belgium (BE)
Quantachrome Instruments
United States (USA) (US)
Budapest University of Technology and Economics (BME) / Budapesti Műszaki és Gazdaságtudományi Egyetem
Hungary (HU)
Belgium (BE)
Quantachrome Instruments
United States (USA) (US)
Budapest University of Technology and Economics (BME) / Budapesti Műszaki és Gazdaságtudományi Egyetem
Hungary (HU)
How to cite
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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