title: Linking experiment and theory for three-dimensional networked binary metal nanoparticle-triblock terpolymer superstructures.
abstract: Controlling superstructure of binary nanoparticle mixtures in three dimensions from self-assembly opens enormous opportunities for the design of materials with unique properties. Here we report on how the intimate coupling of synthesis, in-depth electron tomographic characterization and theory enables exquisite control of superstructure in highly ordered porous three-dimensional continuous networks from single and binary mixtures of metal nanoparticles with a triblock terpolymer. Poly(isoprene-block-styrene-block-(N,N-dimethylamino)ethyl methacrylate) is synthesized and used as structure-directing agent for ligand-stabilized platinum and gold nanoparticles. Quantitative analysis provides insights into short- and long-range nanoparticle-nanoparticle correlations, and local and global contributions to structural chirality in the networks. Results provide synthesis criteria for next-generation mesoporous network superstructures from binary nanoparticle mixtures for potential applications in areas including catalysis.
authors.affiliation: 1] Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, USA [2].
authors.forename: Zihui
authors.initials: Z
authors.lastname: Li
authors.affiliation: 1] Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA [2] [3].
authors.forename: Kahyun
authors.initials: K
authors.lastname: Hur
authors.affiliation: Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Sai
authors.affiliation: Japan Science and Technology Agency, ERATO, Takahara Soft Interfaces Project and Institute for Materials Chemistry and Engineering (IMCE), CE80, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Higuchi
authors.affiliation: 1] Japan Science and Technology Agency, ERATO, Takahara Soft Interfaces Project and Institute for Materials Chemistry and Engineering (IMCE), CE80, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan [2] International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), CE80, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Takahara
authors.affiliation: 1] Japan Science and Technology Agency, ERATO, Takahara Soft Interfaces Project and Institute for Materials Chemistry and Engineering (IMCE), CE80, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan [2] International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), CE80, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Jinnai
authors.affiliation: 1] Department of Physics, Cornell University, Ithaca, New York 14853, USA [2] Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, USA.
authors.forename: Sol M
authors.initials: SM
authors.lastname: Gruner
authors.affiliation: Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Wiesner
mesh_terms: D055032:Electron Microscope Tomography; D006046:Gold / Q000737:chemistry*; D008968:Molecular Conformation; D053758:Nanoparticles / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*; D011109:Polymethacrylic Acids / Q000737:chemistry*; D011137:Polystyrenes / Q000737:chemistry*; D013729:Terpenes / Q000737:chemistry*
chemical_list: D011109:Polymethacrylic Acids; D011137:Polystyrenes; D013729:Terpenes; D010984:Platinum; D006046:Gold