Synthesis and electronic structure of low-density monoliths of nanoporous nanocrystalline anatase TiO2

被引：13

作者：

Kucheyev, SO ^{[1
]}

Baumann, TF ^{[1
]}

Wang, YM ^{[1
]}

van Buuren, T ^{[1
]}

Satcher, JH ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 2005年 / 144卷

关键词：

aerogels; anatase titania; X-ray absorption; electronic structure; TiO2; nanoparticles;

D O I：

10.1016/j.elspec.2005.01.157

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Monolithic nanocrystalline anatase titania aerogels are synthesized by the epoxide sol-gel method followed by thermal annealing at 550 degrees C. These aerogels are formed by similar to 10-20 nm size anatase nanoparticles which are randomly oriented and interconnected into an open-cell solid network. Aerogel monoliths have an apparent density of similar to 10% and a surface area of similar to 100 m(2) g(-1). High-resolution transmission electron microscopy and soft X-ray absorption near-edge structure spectroscopy reveal good crystallinity of the anatase nanoparticles forming the aerogel skeleton. Published by Elsevier B.V.

引用

页码：609 / 612

页数：4

共 16 条

[1] ELECTRON-ENERGY LOSS AND X-RAY ABSORPTION-SPECTROSCOPY OF RUTILE AND ANATASE - A TEST OF STRUCTURAL SENSITIVITY [J].