Shape Evolution of New-Phased Lepidocrocite VOOH from Single-Shelled to Double-Shelled Hollow Nanospheres on the Basis of Programmed Reaction-Temperature Strategy
- 26 May 2009
- journal article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 48 (13), 6044-6054
- https://doi.org/10.1021/ic900416v
Abstract
Solid templates have been long regarded as one of the most promising ways to achieve single-shelled hollow nanostructures; however, few effective methods for the construction of multishelled hollow objects from their solid template counterparts have been developed. We report here, for the first time, a novel and convenient route to synthesizing double-shelled hollow spheres from the solid templates via programming the reaction-temperature procedures. The programmed temperature strategy developed in this work then provides an essential and general access to multishelled hollow nanostructures based on the designed extension of single-shelled hollow objects, independent of their outside contours, such as tubes, hollow spheres, and cubes. Starting from the V(OH)(2)NH(2) solid templates, we show that the relationship between the hollowing rate and the reaction temperature obey the Van't Hoff rule and Arrhenius activation-energy equation, revealing that it is the chemical reaction rather than the diffusion process that guided the whole hollowing process, despite the fact that the coupled reaction/diffusion process is involved in the hollowing process. Using the double-shelled hollow spheres as the PCM (CaCl(2).6H(2)O) matrix grants much better thermal-storage stability than that for the nanoparticles counterpart, revealing that the designed nanostructures can give rise to significant improvements for the energy-saving performance in future "smart house" systems.This publication has 28 references indexed in Scilit:
- Self‐Assembled Double‐Shelled Ferrihydrite Hollow Spheres with a Tunable ApertureChemistry – A European Journal, 2008
- The Use of Single‐Source Precursors for the Solution–Liquid–Solid Growth of Metal Sulfide Semiconductor NanowiresAngewandte Chemie-International Edition, 2008
- Large‐Scale Synthesis of Titanate and Anatase Tubular HierarchitecturesSmall, 2007
- Synthesis of New‐Phased VOOH Hollow “Dandelions” and Their Application in Lithium‐Ion BatteriesAdvanced Materials, 2006
- General Synthetic Route toward Functional Hollow Spheres with Double‐Shelled StructuresAngewandte Chemie-International Edition, 2005
- General Synthetic Route toward Functional Hollow Spheres with Double‐Shelled StructuresAngewandte Chemie, 2005
- Synthesis of Spheres with Complex Structures Using Hollow Latex Cages as TemplatesAdvanced Functional Materials, 2005
- Synthesis and characterization of ZnSe hollow nanospheres via a hydrothermal routeNanotechnology, 2005
- A Novel Approach to Synthesize Hollow Calcium Carbonate ParticlesChemistry Letters, 2004
- Kinetics of Homogeneous Nucleation in the Freezing of Large Water ClustersThe Journal of Physical Chemistry, 1995