NDLI: Water sorption by the calcium chloride/silica gel composite: The accelerating effect of the salt solution present in the pores

Please wait, while we are loading the content...

Kinetics and mechanism of the photodecomposition of trifluorobromomethane and tetrafluorodibromoethane under the action of light with a wavelength of 253.7 nm

Photocatalytic removal of nitrogen oxides from air on TiO$_{2}$ modified with bases and platinum

Complex containing a Lewis acid and Brønsted acid for the catalytic reactions of aza-Michael addition

Catalytic properties of supramolecular systems based on polyoxyethylated calixarenes and amines

Solvent-free Knoevenagel condensation over iridium and platinum hydroxyapatites

Effect of the distribution of palladium over the cross section of an ion-exchanger fiber on catalyst activity in a water deoxygenation process

Catalytic properties of massive iron-subgroup metals in dichloroethane decomposition into carbon products

Sulphate-functionalized multi-walled carbon nanotubes as catalysts for the esterification of glycerol with acetic acid

Aluminium dodecatungstophosphate (AlPW$_{12}$O$_{40}$)—An efficient catalyst for three-component Mannich reaction in water

Synthesis of catalytic filamentous carbon on a nickel/graphite catalyst and a study of the resulting carbon-carbon composite materials in microbial fuel cells

Hydroisomerization of benzene-containing gasoline fractions on a Pt/SO 4 2− -ZrO$_{2}$-Al$_{2}$O$_{3}$ catalyst: II. Effect of chemical composition on acidic and hydrogenating and the occurrence of model isomerization reactions

Effect of the nature of the additives of metal cations (Sr, Ba, and La) on the properties of Co-Mo hydrodesulfurization catalysts

Use of the differential charging effect in XPS to determine the nature of surface compounds resulting from the interaction of a Pt/(BaCO$_{3}$ + CeO$_{2}$) model catalyst with SO$_{ x }$

O$^{−}$ radical anions on oxide catalysts: Formation, properties, and reactions

Water sorption by the calcium chloride/silica gel composite: The accelerating effect of the salt solution present in the pores

Modifying the functional cover of the γ-Al$_{2}$O$_{3}$ surface using organic salts of aluminum

Kinetics and Catalysis : Volume 52, Issue 3, May 2011

Kinetics and Catalysis : Volume 52, Issue 2, March 2011

Kinetics and Catalysis : Volume 52, Issue 1, February 2011

Kinetics and Catalysis : Volume 51

Kinetics and Catalysis : Volume 50

Kinetics and Catalysis : Volume 49

Kinetics and Catalysis : Volume 48

Kinetics and Catalysis : Volume 47

Kinetics and Catalysis : Volume 46

Kinetics and Catalysis : Volume 45

Kinetics and Catalysis : Volume 44

Kinetics and Catalysis : Volume 43

Kinetics and Catalysis : Volume 42

Kinetics and Catalysis : Volume 41

Water sorption by the calcium chloride/silica gel composite: The accelerating effect of the salt solution present in the pores

Content Provider	Springer Nature Link
Author	Ovoshchnikov, D. S. Glaznev, I. S. Aristov, Yu. I.
Copyright Year	2011
Abstract	The kinetics of isothermal water sorption by the CaCl$_{2}$/silica gel composite initiated by a small stepwise pressure rise over the sample has been investigated at a constant underlying plate temperature of 35°C. The initial portion of the kinetic curves is consistent with Fick’s diffusion model: the amount of sorbed water increases in proportion to the square root of the sorption time. This makes it possible to determine the effective diffusivity of water (D $_{eff}$). At small amounts of sorbed water (w < 0.19 g/g), D $_{eff}$ changes slightly. The diffusivity of water in the composite pores (D) calculated for the same conditions is close to the Knudsen diffusivity of water vapor in mesopores. The D $_{eff}$ value grows with an increasing water content of the composite; that is, sorbed water accelerates water transport in the pores. This is likely due to the appearance of an extra diffusion channel, namely, diffusion through the aqueous solution of the salt, whose formation begins on the silica gel surface at w > 0.1 g/g. The contribution from this channel increases markedly when the amount of adsorbed water is above 0.25 g/g. This can be explained by the formation of the “connected” phase of the solution in the pores.
Starting Page	620
Ending Page	628
Page Count	9
File Format	PDF
ISSN	00231584
Journal	Kinetics and Catalysis
Volume Number	52
Issue Number	4
e-ISSN	16083210
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2011-08-07
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Catalysis Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis Modeling and Simulation Computer Science Applications

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Composite Water Sorbents of the Salt in Silica Gel Pores Type: The Effect of the Interaction between the Salt and the Silica Gel Surface on the Chemical and Phase Compositions and Sorption Properties

Selective water sorbents for multiple applications, 4. CaCl$_{2}$ confined in silica gel pores: Sorption/desorption kinetics

Kinetics of water sorption on a CaCl$_{2}$-in-silica-gel-pores sorbent: The effects of the pellet size and temperature

Dynamics of water vapor sorption in a CaCl$_{2}$/Silica Gel/Binder bed: The effect of the bed pore structure

Dynamics and isotherms of water vapor sorption on mesoporous silica gels modified by different salts

“Salt in a porous matrix” adsorbents: Design of the phase composition and sorption properties

Simulation of a solid sorption ice-maker based on the novel composite sorbent " lithium chloride in silica gel pores "

Low temperature heat capacity of the system “silica gel–calcium chloride–water”

Morphology and Texture of Silica Prepared by Sol–Gel Synthesis on the Surface of Fibrous Carbon Materials

Water sorption by the calcium chloride/silica gel composite: The accelerating effect of the salt solution present in the pores

Similar Documents

Composite Water Sorbents of the Salt in Silica Gel Pores Type: The Effect of the Interaction between the Salt and the Silica Gel Surface on the Chemical and Phase Compositions and Sorption Properties

Selective water sorbents for multiple applications, 4. CaCl$_{2}$ confined in silica gel pores: Sorption/desorption kinetics

Kinetics of water sorption on a CaCl$_{2}$-in-silica-gel-pores sorbent: The effects of the pellet size and temperature

Dynamics of water vapor sorption in a CaCl$_{2}$/Silica Gel/Binder bed: The effect of the bed pore structure

Dynamics and isotherms of water vapor sorption on mesoporous silica gels modified by different salts

“Salt in a porous matrix” adsorbents: Design of the phase composition and sorption properties

Simulation of a solid sorption ice-maker based on the novel composite sorbent " lithium chloride in silica gel pores "

Low temperature heat capacity of the system “silica gel–calcium chloride–water”

Morphology and Texture of Silica Prepared by Sol–Gel Synthesis on the Surface of Fibrous Carbon Materials

Water sorption by the calcium chloride/silica gel composite: The accelerating effect of the salt solution present in the pores