A general route to nonspherical anatase TiO2 hollow colloids and magnetic multifunctional particles

Xiong Wen Lou, Lynden A. Archer

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

320 Citations (Scopus)

Abstract

A templating method is demonstrated based on monodisperse nonspherical hematite colloids to produce nonspherical metal oxide hollow or core/shell particles. It was observed during the study that the hematite cores can be converted to magnetite to produce magnetic multifunctional particles. The study used a polyvinylpyrrolidone (PVP) mediated hydrothermal deposition of polycrystalline anatase TiO2 on hematite nanotemplates. The TiO 2 hollow particles can be used for anode materials for lithium batteries with long cycle life and rate capability. The study also used x-ray powder diffraction (XRD) analysis, field-emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM) to investigate the crystallographic structures.
Original languageEnglish
Pages (from-to)1853-1858
JournalAdvanced Materials
Volume20
Issue number10
DOIs
Publication statusPublished - 19 May 2008
Externally publishedYes

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