Open Access Nano Express

Facile Synthesis and Tensile Behavior of TiO2 One-Dimensional Nanostructures

Syed S Amin1, Shu-you Li2, Xiaoxia Wu1, Weiqiang Ding3* and Terry T Xu1*

Author Affiliations

1 Department of Mechanical Engineering and Engineering Science, The University of North Carolina at Charlotte, Charlotte, NC, 28223, USA

2 NUANCE Center, Northwestern University, Evanston, IL, 60208, USA

3 Department of Mechanical and Aeronautical Engineering, Clarkson University, Potsdam, NY, 13699, USA

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Nanoscale Research Letters 2009, 5:338-343  doi:10.1007/s11671-009-9485-5

Published: 18 November 2009

Abstract

High-yield synthesis of TiO2 one-dimensional (1D) nanostructures was realized by a simple annealing of Ni-coated Ti grids in an argon atmosphere at 950 °C and 760 torr. The as-synthesized 1D nanostructures were single crystalline rutile TiO2 with the preferred growth direction close to [210]. The growth of these nanostructures was enhanced by using catalytic materials, higher reaction temperature, and longer reaction time. Nanoscale tensile testing performed on individual 1D nanostructures showed that the nanostructures appeared to fracture in a brittle manner. The measured Young’s modulus and fracture strength are ~56.3 and 1.4 GPa, respectively.

Keywords:
TiO2 nanomaterials; Synthesis and characterization; Nanoscale tensile testing