Zero-Carbon Energy Kyoto 2012 by Takeshi Yao

Author:Takeshi Yao
Language: eng
Format: epub
Publisher: Springer Japan, Tokyo

Keywords

ElectrospinningNanofiberStrontium titanate

1 Introduction

The photocatalytic properties of metal oxide semiconductors have been widely studied. Titanium dioxide (TiO2) has seen the most interest because of its water-splitting capability due to its photostability, availability, low cost, non-toxicity and its electronic properties [1, 2]. For water-splitting applications however, the position of the valence band level and the rather large band gap of TiO2 has inhibited its catalytic performance under visible light. Modification of TiO2 with the addition of strontium to form strontium titanate (SrTiO3), a perovskite, has been shown to improve the photopotential of TiO2, allow the production of both hydrogen and oxygen in water-splitting due to the position of the valence and conduction band of SrTiO3, and facilitate easier doping for electronic modification [3]. However, the fabrication of SrTiO3 nanofibers via the hydrothermal reaction of electrospun TiO2 nanofibers with strontium hydroxide has led to various forms of strontium–titanium heterostructures [4, 5]. In this work, we prepared homogeneous SrTiO3 nanofibers via the electrospinning of a solution, which included both titanium and strontium precursors. The precursor solution was modified from the previously reported and optimized TiO2 precursor solution [6].

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.