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Novel Aspects of the Purpose-Built Materials Strategy: Evidence of Topographic Template Effect and Oriented Attachment Growth Mechanism
(Amer Scientific Publishers, 2008-07-01)
We report two novel aspects relating to the growth of oriented 3D arrays of SnO2 nanorods, based on the "purpose-built materials" (PBM) strategy. Under controlled conditions, the substrate acted as a topographic template ...
Role of the oriented attachment mechanism in the phase transformation of oxide nanocrystals
(Wiley-Blackwell, 2007-01-01)
Bottom-up methods to obtain nanocrystals usually result in metastable phases, even in processes carried out at room temperature or under soft annealing conditions. However, stable phases, often associated with anisotropic ...
Phase Transformation in Titania Nanocrystals by the Oriented Attachment Mechanism: The Role of the pH Value
(Wiley-v C H Verlag Gmbh, 2009-01-01)
A new synthetic method for TiO2 nanocrystals starting from metallic Ti and hydrogen peroxide was developed. in order to obtain minimal interferences to evaluate phase transformation in the system. The results revealed that ...
Detachment, displacement and re-attachment activity in a freshwater byssate mussel (Limnoperna fortunei): the effects of light, temperature and substrate orientation
(Taylor & Francis, 2015-09)
The ability of the freshwater bivalve Limnoperna fortunei to voluntarily detach from the substratum, crawl and reattachas a function of illumination, temperature, substratum orientation, and mussel size was investigated. ...
Growth kinetics of vanadium pentoxide nanostructures under hydrothermal conditions
(ElsevierAmsterdam, 2010-11)
The work reported here involved a study of the growth kinetics of V2O5nH2O nanostructures under hydrothermal conditions. The coarsening process of V2O5nH2O nanoribbons was followed by subjecting the as-prepared suspensions ...
Tailoring of heterostructures in a SnO2/TiO2 system by the oriented attachment mechanism
(American Institute of Physics (AIP), 2007-09-03)
In order to verify the possibility of forming a heterostructure-i.e., a nanoparticle tailored by the junction of two or more different materials-through the oriented attachment (OA) mechanism, experiments with rutile TiO2 ...
Growth kinetics of tin oxide nanocrystals in colloidal suspensions under hydrothermal conditions
(Elsevier B.V., 2006-09-29)
Colloidal suspensions of tin oxide nanocrystals were synthesized at room temperature by the hydrolysis reaction of tin chloride (II), in an ethanolic solution. The coarsening kinetics of such nanocrystals was studied by ...
Unified ZnO Q-dot growth mechanism from simultaneous UV–Vis and EXAFS monitoring of sol-gel reactions induced by different alkali base
(2016-11-01)
This article aims to give experimental evidences of the universality of main steps involved in ZnO nanoparticles formation and growth from sol-gel process. In this way, we revisit the effect of the alkali base (LiOH, NaOH, ...