The effect of solvent and temperature in the synthesis of CPO-27-Ni by reflux

• CPO-27-Ni was synthetized by reflux at temperatures not higher than 100 °C.
• Properties comparable to the MOF prepared by solvothermal synthesis were achieved.
• The reflux method is a viable route for large scale synthesis of this MOF.
• A solvent and temperature effect was observed on crystal growth.
• However, only the solvent has an influence on crystallite size.

CPO-27-Ni was synthetized by reflux at temperatures up to 110 °C by using different organic solvent/water mixture and only water. Depending on the solvent(s) used, properties comparable to the material prepared by solvothermal synthesis were achieved typically at lower temperature. It has been demonstrated that the solvent has an effect on crystal growth, this latter influencing size and morphology of the crystal. Also a temperature effect on crystallization and crystal morphology was observed when using the same organic solvent/water mixture at different temperatures. Finally neither the structure nor the stability suffers relevant changes due to solvent modification. The reflux method is a viable route to be used for large scale synthesis of this MOF.

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