Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session H02: Self-assembly of Nanomaterials: Porous Materials
2:30 PM–5:18 PM,
Tuesday, March 6, 2018
LACC Room: 150B
Sponsoring Unit: DCP
Chair: Marjolein Dijkstra, Utrecht University
Abstract: H02.00006 : Self-assembly of mesophases and zeolitic crystals from nanoparticles*
4:18 PM–4:54 PM
(Chemistry, The University of Utah)
Recent years have seen an explosion in the number of crystalline and quasi-crystalline structures formed by assembly of nanoparticles. To date, however, it has been difficult to assemble nanoparticles into mesophases such as those formed by block copolymers and surfactants. This presentation will discuss recent work in which we demonstrate that simulations of binary mixtures of unbound particles with simple short ranged pair interactions produce the same mesophases as block copolymers and surfactants, including lamellar, hexagonal, gyroid, body-centered cubic, face-centered cubic, perforated lamellar, and semicrystalline phases [Kumar and Molinero, J. Phys. Chem. Lett. 2017, 8, 5053-5058]. We will further discuss how the addition of anisotropic interactions to one type of particle in the mixture can result in the fast formation of zeolitic crystals, and the role of the mesophases in facilitating the formation of almost defect-free complex structures. The experimental realization of the interparticle interactions of this work would provide a distinc route to produce complex zeolitic crystals and liquid crystalline mesophases from nanoparticles.
*We ackowledge support from the Camille and Henry Dreyfus Foundation through a Camille Dreyfus Teacher-Scholar Award to V. M. and we thank The Center for High Performance Computing at the University of Utah for technical support and a grant of computer time.
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