Publicaciones 2011-2020

@article{RN255,
title = {Crystallizing Vanadium Pentoxide Nanostructures in the Solid-State Using Modified Block Copolymer and Chitosan Complexes},
author = { C. Diaz and G. Barrera and M. Segovia and M.L. Valenzuela and M. Osiak and C. O'dwyer},
url = {/brokenurl#<Go to ISI>://WOS:000354681800001},
doi = {10.1155/2015/105157},
issn = {1687-4110},
year = {2015},
date = {2015-01-01},
journal = {Journal of Nanomaterials},
volume = {10.1155/2015/105157},
abstract = {A systematic study of the synthesis of V2O5 nanostructured materials using macromolecular PS-co-4-PVP center dot(VCl3)(y) and chitosan center dot(VCl3)(y) complexes is presented. It is demonstrated that various coordination degrees of the metal into the polymeric chain specifically influence the product formation after pyrolysis. PS-co-4-PVP center dot(VCl3)(y) and chitosan center dot(VCl3)(y) complexes were prepared by simple coordination reaction of VCl3 with the respective polymer inmolar ratios 1 : 1, 1 : 5, and 1 : 10 metal/polymer and characterized by elemental analysis, IR spectroscopy, and TGA/DSC analysis. Solid-state thermolysis of these precursors at several temperatures under air results in nanostructured V2O5 using all precursors. The size and shape of the nanostructured V2O5 depend on the nature of the polymer. For the chitosan center dot(VCl3)(y) precursors sub-10nm nanocrystals are formed. The calcination process, involved in the preparation method, produces V2O5 with photoluminescence in the visible light region, suggesting the possible application in oxygen sensing devices.},
keywords = {electrochemical gold growth, intercalation, mechanisms, nanocomposites, nanoparticles, optical-properties, photoluminescence, precursors, properties, ruthenium},
pubstate = {published},
tppubtype = {article}
}

@article{RN201,
title = {Novel Solid-State Route to Nanostructured Tin, Zinc and Cerium Oxides as Potential Materials for Sensors},
author = { C. Diaz and S. Platoni and A. Molina and M.L. Valenzuela and H. Geaney and C. O'dwyer},
url = {/brokenurl#<Go to ISI>://WOS:000335873900035},
doi = {10.1166/jnn.2014.9350},
issn = {1533-4880},
year = {2014},
date = {2014-01-01},
journal = {Journal of Nanoscience and Nanotechnology},
volume = {14},
number = {9},
pages = {6748-6753},
abstract = {Solid-state sensor nanostructured materials (SnO2, ZnO and CeO2) have been prepared by pyrolysis of macromolecular complexes: PSP-co-4-PVP center dot (SnCl2)(n), PSP-co-4-PVP center dot (ZnCl2)(n) and PSP-co-4-PVP center dot (Ce(NO3)(3))(n) in several molar ratios under air at 800 degrees C. The as-prepared nanostructured SnO2 exhibits morphologies and particle sizes which are dependent upon the molar ratio of the SnCl2:PSP-co-4-PVR When a larger weight fraction of the inorganic salt in the precursor mixture is used (1:10 > 1:5 > 1.1) larger crystalline crystals are found for each oxide. For ZnO and CeO2 agglomerates of morphologies from the respective hexagonal and cubic structures were observed with typical sizes of 30-50 nm in both cases for a precursor mixture ratio of 1:1.},
keywords = {ceo2, cerium complex, gold metal-oxide, nanoparticles, nanostructures, oxide, polyphosphazenes, ruthenium, sensors, solid state, synthesis, tem, tin zinc},
pubstate = {published},
tppubtype = {article}
}