Synthesis and water sorption properties of a new composite “CaCl2 confined into SBA-15 pores”

Пономаренко, И. В.; Glaznev, I.S.; Gubar, A. V.; Aristov, Yu. I.; Кирик, С. Д.

doi:10.1016/j.micromeso.2009.09.023

Cited by 106 publications

(51 citation statements)

References 24 publications

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“…A strategy to improve the sorption capacity is the preparation of the composite (two-component) materials by combining the advantages of hygroscopic salts (halides, sulphates and nitrates of alkali and alkali-earth metals) with those of the pure porous materials (matrix) [1,9,[10][11][12][13][14][15][16]. Different host materials are used, mostly disordered porous silicas, ordered mesoporous silica and alumina.…”

Section: Introductionmentioning

confidence: 99%

“…A drawback of hygroscopic chlorides is the formation of solution during hydration and their corrosion. The role of the hygroscopic salt in the composites was described in detail by Aristov and co-workers [9][10][11]15,16], showing that the hygroscopic salt in the composite was an active component and interacted with water to increase the sorption capacity. A study of water sorption properties of the composites revealed that the formation of salt hydrates in the dispersed state happened at a lower relative pressure of water vapour with respect to the bulk state.…”

Section: Introductionmentioning

confidence: 99%

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New two-component water sorbent CaCl2-FeKIL2 for solar thermal energy storage

Ristić

Maučec

Henninger

et al. 2012

Microporous and Mesoporous Materials

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

New two-component water sorbent CaCl2-FeKIL2 for solar thermal energy storage

Ristić

Maučec

Henninger

et al. 2012

Microporous and Mesoporous Materials

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“…However, the chemical adsorbents have the disadvantages of easy deliquescence, poor mass and heat transfer performance, which depress their practical application. In order to solve the above drawbacks, a class of materials named composite salts in porous matrixes (CSPMs) have recently attracted great interest from researchers 12‐14 . CSPMs are usually to confine as the guest hygroscopic salts (e.g., LiCl, SrBr 2 , MgSO 4 and CaCl 2 ) to the host porous matrixes (eg, silica gel, activated carbon and zeolite) by means of impregnation.…”

Section: Introductionmentioning

confidence: 99%

Investigation on water vapor adsorption performance of LiCl@MIL‐100(Fe) composite adsorbent for adsorption heat pumps

et al. 2020

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MIL-100(Fe) with good hydrothermal stability and high hydrophilicity is considered to be a potential adsorbent for adsorption heat pumps (AHPs). However, its water vapor adsorption performance at low relative humidity needs to be improved. In this study, composite adsorbent LiCl@MIL-100(Fe) was synthesized by impregnating LiCl aqueous solution in MIL-100(Fe). The effects of the LiCl loading in the composite on the crystal structure, morphology, composition, pore structure as well as the vapor adsorption/desorption performance of the composites were carefully studied. The results showed that on the premise of ensuring no leakage, the LiCl loading in the composite was up to 32.9 wt%. At 20% relative humidity (RH), the saturated adsorption ratio of the composite (0.260 g/g) was higher than that of original MIL-100(Fe) (0.054 g/g). Meanwhile, the water adsorption rate of the new composite adsorbent was faster than pristine MIL-100(Fe). Moreover, after 50 cycles of vapor adsorption/desorption, the composite adsorbent showed a satisfactory stability. All these indicate that the new LiCl@MIL-100 (Fe) composite adsorbent will be a prospective candidate for high-efficiency AHPs. K E Y W O R D S adsorption heat pumps, composite adsorbent, LiCl, MIL-100(Fe), synergistic effect, water vapor adsorption

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“…Zeolite X was chosen due to its hydrophilic properties, its commercial availability, and since it is already used in several heat storage applications 15–17. Calcium chloride was selected as a cost‐efficient salt, which was already widely investigated in composite materials for heat storage applications 18–21. The material was prepared on the pilot‐plant scale and characterized with respect to its thermochemical properties on the laboratory scale.…”

Section: Introductionmentioning

confidence: 99%

A Thermochemical Long‐Term Heat Storage System Based on a Salt/Zeolite Composite

et al. 2016

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For the purpose of a long-term heat storage system based on water sorption, a composite material consisting of CaCl 2 and zeolite Ca-X, obtained by ion exchange with Ca 2+ and subsequent impregnation with CaCl 2 of a binder-free granulated zeolite Na-X, was prepared on a technical scale. In a lab-scale apparatus, the heat storage density of the composite material reaches values up to 260 kWh m -3 for water vapor partial pressures up to 33 mbar. As compared to the pure zeolites Ca-X and Na-X, this corresponds to an increase in heat storage density of 45 % and 68 %, respectively. An engineering concept based on the mechanical transport of the composite heat storage material through a prereactor and a main reactor was demonstrated in a hardware-in-the-loop test bench.

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Synthesis and water sorption properties of a new composite “CaCl2 confined into SBA-15 pores”

Cited by 106 publications

References 24 publications

New two-component water sorbent CaCl2-FeKIL2 for solar thermal energy storage

New two-component water sorbent CaCl2-FeKIL2 for solar thermal energy storage

Investigation on water vapor adsorption performance of LiCl@MIL‐100(Fe) composite adsorbent for adsorption heat pumps

A Thermochemical Long‐Term Heat Storage System Based on a Salt/Zeolite Composite

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