Nanoporous Designer Solids with Huge Lattice Constant Gradients: Multiheteroepitaxy of Metal–Organic Frameworks
Citations Over TimeTop 10% of 2014 papers
Abstract
We demonstrate the realization of hierarchically organized MOF (metal-organic framework) multilayer systems with pronounced differences in the size of the nanoscale pores. Unusually large values for the lattice constant mismatch at the MOF-MOF heterojunctions are made possible by a particular liquid-phase epitaxy process. The multiheteroepitaxy is demonstrated for the isoreticular SURMOF-2 series [ Liu et al. Sci. Rep. 2012 , 2 , 921 ] by fabricating trilayer systems with lattice constants of 1.12, 1.34, and 1.55 nm. Despite these large (20%) lattice mismatches, highly crystalline, oriented multilayers were obtained. A thorough theoretical analysis of the MOF-on-MOF heterojunction structure and energetics allows us to identify the two main reasons for this unexpected tolerance of large lattice mismatch: the healing of vacancies with acetate groups and the low elastic constant of MOF materials.
Related Papers
- → Nanoporous alumina : fabrication, structure, properties and applications(2015)81 cited
- → Formation of Nanoporous Structure on Pt Plate Surface by Alloying/Dealloying Technique(2011)4 cited
- → Effects of Metallic Glass Precursors on the Catalytic Performance of Nanoporous Metals(2015)
- Effect of heat treatment of Mn-Cu precursors on morphology of dealloyed nanoporous copper(2012)
- → Nanoporous Metal Template Methods(2022)