Spatial arrangement of metal nanoparticles supported by porous polymer substrates studied by transmission electron microtomography

Hiroshi Jinnai, Takeshi Kaneko, Hideo Nishioka, Hirokazu Hasegawa, Toshio Nishi

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

Fine metal particles (nanoparticles) stabilized on porous (polymeric) substrates can be considered as a model system of a high-performance catalyst. In the present study, the substrate was made using the periodic microphase-separated structure of a block copolymer as the template, and the Pd nanoparticles were formed inside the porous material by reduction of the Pd 2+ ions with 1-propanol as the reductant. The three-dimensional morphology of such a polymer-Pd hybrid material was studied by transmission electron microtomography. The characteristic structural parameters of the hybrid, e.g., the penetration of the Pd nanoparticles into the polymer substrate, number density of the Pd nanoparticles, and size distribution of the Pd nanoparticles, were measured for the first time.

Original languageEnglish
Pages (from-to)267-274
Number of pages8
JournalChemical Record
Volume6
Issue number5
DOIs
Publication statusPublished - 2006

Keywords

  • Block copolymer
  • Gyroid morphology
  • Nanoporous material
  • Polymer-metal hybrid
  • Transmission electron microtomography

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