CONTROL OF THE ELECTROCHEMICAL PROPERTIES BY THE DESIGN OF METAL OXIDE NANOPARTICLES

Reference Presenter Authors
(Institution)
Abstract
06-208 sophie cassaignon cassaignon, s.(Sorbonne Université); durupthy, o.(Sorbonne Université); portehault, d.(Sorbonne Université); Emergence of nanotechnology increasingly shows examples of material potentiality, which has at least one dimension lower than 100 nm. The preparation of nano-objects by soft chemistry in aqueous solution with crystal structure, size and morphology perfectly controlled is based on the use of molecular precursors and adjustment of the physico-chemical parameters throughout precipitation of the solid. The growth of nanocrystals can be limited or on the contrary favored in some crystallographic directions. It is also possible to control other parameters such as the nature of the precursor, the presence of ions or molecules in the reaction medium and also to involve redox processes in addition to the acido-basic reactions. This last point can significantly enhance the potentiality of this chemistry in the design of particles. Along with the study of formation mechanisms, our attention focused on the development of higher complexity objects that results in the synthesis of nano-textured objects for various applications. Hierarchical materials with multiple scales of organization and often formed from the assembly of nanoparticles, raises a growing interest, mainly thanks to their ability to combine the functions of the various elementary units. This allows to consider interesting applications of these systems in various fields and especially in the field of the Energy and Environment.
<< Back
Copyright © 2019 Metallum. All rights reserved.
Site produced by: SITESP.NET