Template-free, surfactant-mediated orientation of self-assembled supercrystals of metal-organic framework particles
Avci, Civan (Institut Català de Nanociència i Nanotecnologia)
Liu, Yang (Institut Català de Nanociència i Nanotecnologia)
Pariente, Jose Angel (Instituto de Ciencia de Materiales de Madrid)
Blanco, Alvaro (Instituto de Ciencia de Materiales de Madrid)
Lopez, Cefe (Instituto de Ciencia de Materiales de Madrid)
Imaz, Inhar (Institut Català de Nanociència i Nanotecnologia)
Maspoch Comamala, Daniel (Institut Català de Nanociència i Nanotecnologia)

Data:	2019
Resum:	Mesoscale self-assembly of particles into supercrystals is important for the design of functional materials such as photonic and plasmonic crystals. However, while much progress has been made in self-assembling supercrystals adopting diverse lattices and using different types of particles, controlling their growth orientation on surfaces has received limited success. Most of the latter orientation control has been achieved via templating methods in which lithographic processes are used to form a patterned surface that acts as a template for particle assembly. Herein, a template-free method to self-assemble (111)-, (100)-, and (110)-oriented face-centered cubic supercrystals of the metal-organic framework ZIF-8 particles by adjusting the amount of surfactant (cetyltrimethylammonium bromide) used is described. It is shown that these supercrystals behave as photonic crystals whose properties depend on their growth orientation. This control on the orientation of the supercrystals dictates the orientation of the composing porous particles that might ultimately facilitate pore orientation on surfaces for designing membranes and sensors.
Ajuts:	European Commission 615954 Ministerio de Economía y Competitividad RTI2018-095622-B-I00 Ministerio de Economía y Competitividad SEV-2017-0706 Ministerio de Economía y Competitividad MAT2015-65354-C2-1-R Ministerio de Economía y Competitividad MAT2015-68075-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-80
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Metal-Organic Framework ; Mesoscale assembly ; Supercrystal ; Crystal orientation ; Photonic crystals
Publicat a:	Small, Vol. 15, issue 31 (Aug. 2019) , art. 1902520, ISSN 1613-6829

DOI: 10.1002/smll.201902520

Postprint 17 p, 754.5 KB

El registre apareix a les col·leccions:
Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > Institut Català de Nanociència i Nanotecnologia (ICN2)
Articles > Articles de recerca
Articles > Articles publicats