TY - JOUR
T1 - Structure effects induced by high mechanical compaction of STAM-17-OEt MOF powders
AU - Terracina, Angela
AU - McHugh, Lauren N.
AU - Mazaj, Matjaz
AU - Vrtovec, Nika
AU - Agnello, Simonpietro
AU - Cannas, Marco
AU - Gelardi, Franco
AU - Morris, Russell E.
AU - Buscarino, Gianpiero
N1 - Financial support by PJ-RIC-FFABR_2017 and the EPSRC grant EPSRC industrial CASE award (grant EP/N50936X/1) are acknowledged. The research programme Nanoporous materials (P1-0021) financially supported by Slovenian Research
Agency (ARRS) is acknowledged as well.
PY - 2021/6/22
Y1 - 2021/6/22
N2 - Metal-organic frameworks (MOFs) are promising materials for many potential applications, spacing from gas storage to catalysis. However, the powder form of which they are generally made is not suitable, mainly because of the low packing density. Powder compaction is therefore necessary, but also challenging because of their typical mechanical fragility. Indeed, generally, they undergo irreversibly damages upon densification processes, for example partially or totally loosing microporosity and catalytic activity. In this work, we deeply study the compaction effects on the flexible Cu(II)-based MOF STAM-17-OEt (Cu(C10O5H8)1.6 H2O), whose chemical composition is close to that of HKUST-1, obtaining that it is, by contrast, extremely suitable for mechanical compaction processes with pressures up to 200 MPa, which increase its packing density, its catalytic activity, and preserve porosity, flexibility and water stability, characteristics of STAM-17-OEt. The results are supported by many experimental techniques including EPR spectroscopy, PXRD diffraction, CO2 isotherms studies and catalytic tests.
AB - Metal-organic frameworks (MOFs) are promising materials for many potential applications, spacing from gas storage to catalysis. However, the powder form of which they are generally made is not suitable, mainly because of the low packing density. Powder compaction is therefore necessary, but also challenging because of their typical mechanical fragility. Indeed, generally, they undergo irreversibly damages upon densification processes, for example partially or totally loosing microporosity and catalytic activity. In this work, we deeply study the compaction effects on the flexible Cu(II)-based MOF STAM-17-OEt (Cu(C10O5H8)1.6 H2O), whose chemical composition is close to that of HKUST-1, obtaining that it is, by contrast, extremely suitable for mechanical compaction processes with pressures up to 200 MPa, which increase its packing density, its catalytic activity, and preserve porosity, flexibility and water stability, characteristics of STAM-17-OEt. The results are supported by many experimental techniques including EPR spectroscopy, PXRD diffraction, CO2 isotherms studies and catalytic tests.
KW - EPR spectroscopy
KW - Flexible MOFs
KW - Metal-organic frameworks
KW - MOF Tableting
KW - MOF stability
UR - https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/ejic.202100137#support-information-section
U2 - 10.1002/ejic.202100137
DO - 10.1002/ejic.202100137
M3 - Article
SN - 1434-1948
VL - 2021
SP - 2334
EP - 2342
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
IS - 24
ER -