Journal
CRYSTALS
Volume 10, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/cryst10010017
Keywords
metal-organic framework; supercritical CO2; crystallisation
Funding
- UK Engineering and Physical Sciences Research Council [EP/R01650X/1, EP/R023816/1]
- EPSRC [EP/R023816/1, EP/R01650X/1] Funding Source: UKRI
Ask authors/readers for more resources
In this report, we explore the use of supercritical CO2 (scCO(2)) in the synthesis of well-known metal-organic frameworks (MOFs) including Zn-MOF-74 and UiO-66, as well as on the preparation of [Cu-24(OH-mBDC)(24)](n) metal-organic polyhedra (MOPs) and two new MOF structures {[Zn-2(L-1)(DPE)]center dot 4H(2)O}(n) and {[Zn-3(L-1)(3)(4,4 '-azopy)]center dot 7.5H(2)O}(n), where BTC = benzene-1,3,5-tricarboxylate, BDC = benzene-1,4-dicarboxylate, L-1 = 4-carboxy-phenylene-methyleneamino-4-benzoate, DPE = 1,2-di(4-pyridyl)ethylene, 4.4 '-azopy = 4,4 '- azopyridine, and compare the results versus traditional solvothermal preparations at low temperatures (i.e., 40 degrees C). The objective of the work was to see if the same or different products would result from the scCO(2) route versus the solvothermal method. We were interested to see which method produced the highest yield, the cleanest product and what types of morphology resulted. While there was no evidence of additional meso- or macroporosity in these MOFs/MOPs nor any significant improvements in product yields through the addition of scCO(2) to these systems, it was shown that the use of scCO(2) can have an effect on crystallinity, crystal size and morphology.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available