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Tailoring Water Adsorption Capacity of APO-Tric
- Source :
- Crystals, Vol 11, Iss 773, p 773 (2021), Crystals, Volume 11, Issue 7, Crystals, str. 1-12 : Ilustr., Vol. 11, iss. 7, article no. 773, Jul. 2021, COBISS-ID: 36677893, Crystals, vol. 11, no. 7, 773, pp. 1-12, 2021., Crystals, vol. 11, no. 7, 773, 2021.
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Microporous triclinic AlPO4-34, known as APO-Tric, serves as an excellent water adsorbent in thermal energy storage, especially for low temperature thermochemical energy storage. Increased water adsorption capacity of thermochemical material usually leads to higher thermal energy storage capacity, thus offering improved performance of the adsorbent. The main disadvantage of aluminophosphate-based TCM materials is their high cost due to the use of expensive organic templates acting as structure directing agents. Using ionic liquids as low cost solvents with associated structure directing role can increase the availability of these water adsorbents for TES applications. Here, a green synthesis of APO-Tric crystals at elevated and ambient pressure by using 1-ethyl-3-methyl imidazolium bromide ionic liquid is presented. Large 200 µm romboid shaped monocrystals were obtained at 200 °C after 6 days. The structure of APO-Tric and the presence of 1,3-dimetylimidazolium cation in the micropores were determined by single crystal XRD at room temperature and 150 K. Water sorption capacity of APO-Tric prepared by ionothermal synthesis at elevated pressure increased in comparison to the material obtained at hydrothermal synthesis most probably due to additional structural defects obtained after calcination. The reuse of exhausted ionic liquid was also confirmed, which adds to the reduction of toxicity and cost production of the aluminophosphate synthesis.
- Subjects :
- Materials science
General Chemical Engineering
02 engineering and technology
elektrokemija
010402 general chemistry
01 natural sciences
Energy storage
law.invention
single-crystal structure determination
Inorganic Chemistry
APO-Tric, water adsorption capacity, thermal energy storage, green ionothermal synthesis, single-crystal structure determination
chemistry.chemical_compound
Adsorption
Bromide
law
Hydrothermal synthesis
water adsorption capacity
General Materials Science
Calcination
green ionothermal synthesis
Crystallography
thermal energy storage
sinteza
Microporous material
021001 nanoscience & nanotechnology
Condensed Matter Physics
APO-Tric
0104 chemical sciences
hranilniki toplote
chemistry
Chemical engineering
QD901-999
elektrokemija, hranilniki toplote, absorpcija, sinteza
udc:544.5/.6
Ionic liquid
0210 nano-technology
absorpcija
Ambient pressure
Subjects
Details
- ISSN :
- 20734352
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- Crystals
- Accession number :
- edsair.doi.dedup.....0c8d90ebc8d82a22027cd91d0ea20dc7
- Full Text :
- https://doi.org/10.3390/cryst11070773