title: A novel composite hierarchical hollow structure: one-pot synthesis and magnetic properties of W(18)O(49)-WO(2) hollow nanourchins.
abstract: A novel composite hierarchical hollow structure is reported. The as-prepared products consist of discrete WO(2) hollow core spheres with W(18)O(49) nanorod shells ("hollow urchins"). The products showed unusual magnetic behavior.
authors.affiliation: Surface Chemistry Laboratory of Electronic Materials, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Korea.
authors.forename: Seongho
authors.initials: S
authors.lastname: Jeon
authors.forename: Kijung
authors.initials: K
authors.lastname: Yong