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{RN90,
title = {Intercalation and Electrical Behavior of Taxmo1-Xs2 (X > 0.5) Layered Mixed Disulfides},
author = { N. Lara and P. Aranda and A.I. Ruiz and V. Manriquez and E. Ruiz-Hitzky},
url = {/brokenurl#<Go to ISI>://WOS:000302461200007},
doi = {10.1590/S0103-50532012000300007},
issn = {0103-5053},
year = {2012},
date = {2012-01-01},
journal = {Journal of the Brazilian Chemical Society},
volume = {23},
number = {3},
pages = {415-+},
abstract = {This work reports a systematic study of the structural and electrical behavior of three ternary phases of the TaxMo1-xS2 system (x = 0.55, 0.75 and 0.90) and their intercalation compounds resulting from both chemical and electrochemical lithium insertions, as well as from pyridine and poly(ethylene oxide) intercalations. The three ternary phases were prepared by direct reaction of their constituting elements, without any other additive, at 900 degrees C in inert atmosphere. The resulting compounds were characterized by means of X-ray powder diffractometry (XRD), thermogravimetric and differential thermal (TGA/DTA) analyses, energy dispersive X-ray fluorescence (EDX) and field emission-scanning electron microscopy (FE-SEM). The electrical conductivity of the different products was measured in the 1.5-300 K temperature range using the conventional four probe van der Pauw method in the presence of a 9 T magnetic field in order to verify the occurrence of magnetoresistivity phenomena.},
keywords = {chalcogenides, complexes, conducting conductivity, dichalcogenides, encapsulation, intercalation, lithium molybdenum-disulfide, mos2, nanocomposites, peo, polymers, pyridine, solids sulfides, transition-metal},
pubstate = {published},
tppubtype = {article}
}