Selective Water Sorbents for Multiple Applications, 8. Sorption Properties of CaCl2 - SiO2 SOL-Gel Composites | Sciact - CRIS-system of Boreskov Institute of Catalysis

Selective Water Sorbents for Multiple Applications, 8. Sorption Properties of CaCl2 - SiO2 SOL-Gel Composites Full article

Journal

Reaction Kinetics and Catalysis Letters
ISSN: 0133-1736 , E-ISSN: 1588-2837

Output data

Year: 1999, Volume: 66, Number: 1, Pages: 113-120 Pages count : 8 DOI: 10.1007/BF02475749

Funding (2)

1	North Atlantic Treaty Organization	HTECH.LG 970330
2	Russian Foundation for Basic Research	97-03-33533

This paper presents sorption properties of CaCl2/SiO2 composites synthesized by a sol-gel approach. Desorption isobars measured at T=30–140°C and vapor pressure 12.8–81.0 mbar clearly show a correlation between the sorbents pore structure and their sorption properties. The sample adsorptivities are found to exceed 1.2 kg H2O/kg adsorbent (or 20–25 mol H2O/mol of the salt). That is markedly higher than any reported before for silica-based materials. This results in a high energy storage capacity reaching 3,400 kJ/kg of dry sorbent, as confirmed by direct calorimetric measurements. The isosteric desorption heat is found to decrease from 67±5 kJ/mol to 46±5 kJ/mol with increase in the surface coverage.

Gordeeva L.G. , Mrowiec-Bialon J. , Jarzebski A.B. , Lachowski A.I. , Malinowski J.J. , Aristov Y.I.
Selective Water Sorbents for Multiple Applications, 8. Sorption Properties of CaCl2 - SiO2 SOL-Gel Composites
Reaction Kinetics and Catalysis Letters. 1999. V.66. N1. P.113-120. DOI: 10.1007/BF02475749 WOS Scopus РИНЦ ANCAN OpenAlex

Submitted:	Jan 8, 1998
Accepted:	Sep 21, 1998
Published print:	Jan 1, 1999

Web of science:	WOS:000078660000016
Scopus:	2-s2.0-25844529075
Elibrary:	13307559
Chemical Abstracts:	1999:275195
Chemical Abstracts (print):	131:23979
OpenAlex:	W1999915824

DB	Citing
Web of science	16
Scopus	16
Elibrary	15
OpenAlex	15