Affiliation:
1. Department of Inorganic Chemistry P. J. Šafárik University Moyzesova 11 041 01 Košice Slovak Republic
2. Department of Chemistry University of Ostrava 30. Dubna 22 702 00 Ostrava Czech Republic
Abstract
AbstractA novel holmium‐based porous metal‐porphyrin framework, {(H3O+)[Ho(H2TPPS)]− ⋅ 4H2O}n (denoted as UPJS‐17), was synthesised by hydrothermal reaction. Structural analysis reveals, that UPJS‐17 has a three‐dimensional open framework. The framework is negatively charged and the negative charge is compensated by hydronium cation. The compound showed no N2 adsorption but the Ar, CO2 and H2. From the argon adsorption, the surface area of ~150 m2 g−1 was determined. Carbon dioxide adsorption was measured at various temperatures (0, 10, 20, 30 and 40 °C) and the compound showed the highest adsorption capacity (at 0 °C) of 7.0 wt % of CO2. From the carbon dioxide adsorption isotherms the isosteric heat of 56,5 kJ mol−1 was determined. Hydrogen adsorption was studied at −196 °C with hydrogen uptake of 2.1 wt % at 1 bar.
Funder
Ministerstvo školstva, vedy, výskumu a športu Slovenskej republiky