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a Schematic illustration for the formation of hollow Zn–BTC tetrahedroids via a CO2–IL interfacial templating route. b SEM and c TEM images of the hollow tetrahedron-like Zn–BTC microparticles. The N-EtFOSA concentration is 2.0 wt% based on IL and the CO2 pressure is 6.3 MPa.
Reprinted with permission from Ref. [113]. Copyright 2014 Elsevier Inc
