Nano Research

, Volume 1, Issue 3, pp 213–220

Inorganic hierarchical nanostructures induced by concentration difference and gradient

  • Haibin Chu
  • Xuemei Li
  • Guangda Chen
  • Zhong Jin
  • Yan Zhang
  • Yan Li
Open Access
Research Article

Abstract

A very simple strategy for preparing hierarchical inorganic nanostructures is presented under ambient aqueous conditions. The hierarchical inorganic nanomaterials were obtained by simply adding a highly concentrated solution of one reactant to a solution of another reactant with low concentration. No surface-capping molecules or structure-directing templates were needed. The preparation of hierarchical single crystalline PbMoO4 was used as an example in order to study the effects of varying the reaction conditions and the mechanism of the process. It was found that the large concentration difference (typically in excess of 200-fold) and the concentration gradient of the reactants both play key roles in controlling the diffusion process and the morphology of the resulting nanostructures. This kinetically controlled strategy is facile and is easily adapted to prepare a variety of inorganic materials.

Keywords

Crystal growth hierarchical nanostructures kinetics 

Supplementary material

12274_2008_8024_MOESM1_ESM.pdf (668 kb)
Supplementary material, approximately 667 KB.

Copyright information

© Tsinghua Press and Springer-Verlag GmbH 2008

Authors and Affiliations

  • Haibin Chu
    • 1
  • Xuemei Li
    • 1
  • Guangda Chen
    • 1
  • Zhong Jin
    • 1
  • Yan Zhang
    • 1
  • Yan Li
    • 1
  1. 1.Beijing National Laboratory for Molecular Sciences, Key Laboratory for the Physics and Chemistry of Nanodevices, National Laboratory of Rare Earth Material Chemistry and Application, College of Chemistry and Molecular EngineeringPeking UniversityBeijingChina

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