Publicaciones 2011-2020

@article{RN143,
title = {Bimetallic Au/Ag Metal Superstructures from Macromolecular Metal Complexes in Solid-State},
author = { C. Diaz and M.L. Valenzuela and D. Bobadilla},
url = {/brokenurl#<Go to ISI>://WOS:000331238800015},
doi = {10.4067/S0717-97072013000400019},
issn = {0717-9707},
year = {2013},
date = {2013-01-01},
journal = {Journal of the Chilean Chemical Society},
volume = {58},
number = {4},
pages = {1994-1997},
abstract = {Novel bimetallic Au/Ag superstructures have been prepared from solid-state pyrolysis of the macromolecular complexes Chitosan( MLn/M'Ln)(n) y PSP-4-PVPx(MLn/M'Ln)(n) with MLn = AuCl3 and M'Ln = Ag(CF3SO3). The characterization was made from XRD (X-ray diffraction of powder), SEM and EDS analysis. Morphologies are influenced by both the nature of the polymer and the metal/polymer, molar ratio of the polymer precursor. EDS analysis suggests a core/shell Au/Ag structure for the materials. A probable mechanism of the formation of these superstructures is discussed. Although separated reports of metallic superstructures of Au or Ag have been recently described, the here reported are the first bimetallic Au/Ag.},
keywords = {and au complexes, derivatives, fabrication, gold, macromolecular metallic morphology, nanocrystals, nanoparticles, organometallic polyphosphazenes, precursors, pyrolysis pyrolysis, superstructures, thermolytic transformation},
pubstate = {published},
tppubtype = {article}
}

@article{RN32i,
title = {Nanostructured Vox/Vo(Po4)(N) Using Solid-State Vanadium Containing Phosphazene Precursors: A Useful Potential Bi-Catalyst System},
author = { C. Diaz and M.L. Valenzuela and N. Yutronic and V. Villalobos and G. Barrera},
url = {/brokenurl#<Go to ISI>://WOS:000297250000012},
doi = {10.1007/s10876-011-0415-1},
issn = {1040-7278},
year = {2011},
date = {2011-01-01},
journal = {Journal of Cluster Science},
volume = {22},
number = {4},
pages = {693-704},
abstract = {Pyrolysis of molecular precursors containing vanadium organometallic and cyclic phosphazene affords mixtures of nanostructured vanadium oxides and pyrophosphates. The products from the molecular precursor [N3P3(OC6H5)(5)OC5H4N center dot Cp2VCl][PF6], and of the mixtures Cp2VCl2/N3P3(OC6H4CHO)(6) and Cp2VCl2/[NP(O2C12H8)](3) in several relationships 1:1, 1:3, 1:5 and 1:10, pyrolyzed under air and at 400 A degrees C and 600 A degrees C, give mixtures mainly V2O5 and VO(PO3)(2). Varied morphologies depending on the molecular or mixture precursors and of the temperature used were observed. Nanowires with diameters of approximate 40 nm were observed for the 1:5 Cp2VCl2/[NP(O2C12H8)](3) mixture pyrolyzed at 400 A degrees C, while the same mixture pyrolyzed at 600 A degrees C, affords xerogels of V2O5. The products were characterized by scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), infra-red (IR) spectroscopy and X-ray diffraction (XRD). The preparation method constitutes a novel one-pot solid-state way to nanostructured materials with potential applications both in oxidative dehydrogenation of light hydrocarbons with V2O5, as well as alkenes oxidations with VO(PO3)(2).},
keywords = {autogenic cyclophosphazenes, derivatives, electrochemical elevated-temperature, gold, morphology, nanofibres nanoparticles, organometallic polyphosphazenes, pressure, properties, pyrolysis, template, vanadium},
pubstate = {published},
tppubtype = {article}
}