Facile synthesis of mesoporous TiO 2 spheres with hollow interiors

Jin Young Park, Hong Chae Jung, G. Seeta Rama Raju, Byung Kee Moon, Jung Hyun Jeong, Byung Chun Choi, Jung Hwan Kim

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The Mesoporous TiO 2 hollow spheres are synthesized by a solvothermal reaction without any surfactant and template. The reaction conditions such as reaction temperature, type of precursor, solvent used and their influence on the synthesis of TiO 2 hollow spheres are investigated. The synthesized TiO 2 hollow spheres are characterized by X-ray diffraction, transmission electron microscopy (TEM), scanning electron microscopy (SEM), focused ion beam (FIB) SEM, Barrett-Emmett-Teller (BET) surface areas, and UV-visible diffused reflectance spectroscopy. The synthesized TiO 2 spheres have obtained different diameters ranging from 700 nm to 1.79 μm at different reaction temperatures. The shell is composed of numerous single crystalline nanoparticles. The morphology and interiors of the spheres strongly depend upon the experimental parameters such as reaction temperature and a kind of solvent. Especially, interiors of TiO 2 hollow spheres such as mesoporous, double shell and single wall structures at various reaction temperatures are discussed with the aid of TEM and FIB SEM measurements.

Original languageEnglish
Pages (from-to)P8-P13
JournalJournal of the Electrochemical Society
Volume159
Issue number1
DOIs
StatePublished - 2012

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