title: Selective deposition of a gadolinium(III) cluster in a hole opening of single-wall carbon nanohorn.
abstract: Selective synthesis of particles of angstrom to nanometer size consisting of one to many metal atoms is instrumental in various applications, but it has been hampered by the tendency of the metal atom to form large clusters. We found, as studied by the state-of-the-art electron microscopic technique, a strategy to produce metal-containing nanoparticles isolated from each other by depositing metal atoms in a hydrophilic hole on or in the interior of a carbon nanotube as demonstrated by the reaction of Gd(OAc)(3) with oxidized single-wall nanohorns. Besides the potential utilities of the deposited metal clusters, the metal deposition protocol provides a method to control permeation of molecules through such openings.
authors.affiliation: Research Center for Advanced Carbon Materials, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan. hashimoto-aya@aist.go.jp
authors.forename: Ayako
authors.initials: A
authors.lastname: Hashimoto
authors.forename: Hideki
authors.initials: H
authors.lastname: Yorimitsu
authors.forename: Kumiko
authors.initials: K
authors.lastname: Ajima
authors.forename: Kazutomo
authors.initials: K
authors.lastname: Suenaga
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Isobe
authors.forename: Jin
authors.initials: J
authors.lastname: Miyawaki
authors.forename: Masako
authors.initials: M
authors.lastname: Yudasaka
authors.forename: Sumio
authors.initials: S
authors.lastname: Iijima
authors.forename: Eiichi
authors.initials: E
authors.lastname: Nakamura