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Spatial arrangement of metal nanoparticles supported by porous polymer substrates studied by transmission electron microtomography
Author(s) -
Jinnai Hiroshi,
Kaneko Takeshi,
Nishioka Hideo,
Hasegawa Hirokazu,
Nishi Toshio
Publication year - 2006
Publication title -
the chemical record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.61
H-Index - 78
eISSN - 1528-0691
pISSN - 1527-8999
DOI - 10.1002/tcr.20095
Subject(s) - materials science , porosity , nanoparticle , transmission electron microscopy , polymer , metal , electron , porous medium , nanotechnology , chemical engineering , composite material , metallurgy , physics , engineering , quantum mechanics
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. © 2006 The Japan Chemical Journal Forum and Wiley Periodicals, Inc. Chem Rec 6: 267–274; 2006: Published online in Wiley InterScience ( www.interscience.wiley.com ) DOI 10.1002/tcr.20095