Linking experiment and theory for three-dimensional networked binary metal nanoparticle–triblock terpolymer superstructures

Zihui Li, Kahyun Hur, Hiroaki Sai, Takeshi Higuchi, Atsushi Takahara, Hiroshi Jinnai, Sol M. Gruner and Ulrich Wiesner ()
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Zihui Li: Cornell University
Kahyun Hur: Cornell University
Hiroaki Sai: Cornell University
Takeshi Higuchi: 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
Atsushi Takahara: 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
Hiroshi Jinnai: 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
Sol M. Gruner: Cornell University
Ulrich Wiesner: Cornell University

Nature Communications, 2014, vol. 5, issue 1, 1-10

Abstract: 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.

Date: 2014
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DOI: 10.1038/ncomms4247

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