Tuned to perfection: Ironing out the defects in metal-organic framework UiO-66

Greig C. Shearer, Sachin Chavan, Jayashree Ethiraj, Jenny G. Vitillo, Stian Svelle, Unni Olsbye, Carlo Lamberti, Silvia Bordiga, Karl Petter Lillerud

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Abstract

A study was conducted to demonstrate the logical impact that the synthesis conditions can have on the properties of UiO-66. Seven potential pitfalls regarding sample ideality were investigated. Five different BDC:Zr ratios were also synthesized on different temperatures. Moreover, the effect of DMF washing and methanol exchange procedures was assessed. It can be seen that the thermal stability of UiO-66 is dramatically and systematically improved by increasing the synthesis temperature. The PXRD pattern of UiO-66-100-2:1-2DMF is already somewhat affected by treatment at only 200°C. Treatment at this temperature typically resulted in 70% of the original sample mass being retained. Regarding the other synthesis parameters investigated, it was found that the BDC:Zr ratio had little effect on the thermal stability of the materials, while stability decreased with increasing extent of washing.

Original languageEnglish (US)
Pages (from-to)4068-4071
Number of pages4
JournalChemistry of Materials
Volume26
Issue number14
DOIs
StatePublished - Jul 22 2014

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    Shearer, G. C., Chavan, S., Ethiraj, J., Vitillo, J. G., Svelle, S., Olsbye, U., Lamberti, C., Bordiga, S., & Lillerud, K. P. (2014). Tuned to perfection: Ironing out the defects in metal-organic framework UiO-66. Chemistry of Materials, 26(14), 4068-4071. https://doi.org/10.1021/cm501859p