期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 357, 期 1, 页码 46-49出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2011.01.084
关键词
Supramolecular assembly; Ionic liquids; Alumina; Nanoparticles; Nanocomposites
资金
- Korea Government [KRF-2008-357-D00059]
- Ministry of Knowledge Economy, Republic of Korea
We demonstrated a simple route to simultaneously synthesize PdO and boehmite nanoparticles, and to directly immobilize the former on the latter using an ionic liquid (IL)-assisted one-pot solution method. PdO nanoparticles were directly immobilized on boehmite nanoparticles, and their amount and distribution were controlled by the stoichiometry of the mixture. In particular, gamma-alumina nanofibers, which were topochemically transformed from boehmites, exhibited lengths of ca. 40-70 nm and diameters of ca. 1.5-3 nm, while PdO nanoparticles had diameters of ca. 2-4 nm. The nanocrystalline structures of the PdO nanoparticles immobilized on the boehmite nanoparticles were characterized by high-resolution transmission electron microscopy (HR-TEM), X-ray diffraction (XRD), and Al-27 nuclear magnetic resonance (NMR). The one-step synthetic method described herein allows for the design and fabrication of host-guest systems of inorganic or metallic nanomaterials with hetero-nanostructures. (C) 2011 Elsevier Inc. All rights reserved.
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