L.A.S.A. Prado
University of Hamburg
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Publication
Featured researches published by L.A.S.A. Prado.
Journal of Membrane Science | 2003
Mariela Leticia Ponce; L.A.S.A. Prado; B. Ruffmann; K Richau; R Mohr; Suzana P. Nunes
Organic–inorganic membranes for direct methanol fuel cell (DMFC) application were prepared, using an organic matrix of sulfonated polyetherketone (s-PEK), different heteropolyacids and an inorganic network of ZrO2 or RSiO3/2. The membranes were characterized concerning their methanol and water permeability by pervaporation and ionic conductivity by impedance spectrometry. The bleeding out of the heteropolyacid from the membrane was quantified. The presence of the ZrO2 decreases the methanol and water permeability and reduces the bleeding out of the heteropolyacid. Molybdophosphoric acid (MoPA) was also investigated, showing a more pronounced bleeding out effect, which could be reduced by modifying the anion structure with the inclusion of Ni or Si. High conductivity values were obtained with membranes containing tungstophosphoric acid (TPA).
Química Nova | 2005
Nadia Mamede José; L.A.S.A. Prado
The preparation and application of organic-inorganic hybrid materials are under fast development and constitute an interesting research topic on account of the versatility and wide range of applications offered by these materials. These properties can be achieved due to the mixture of the components at the molecular level. The present review covers the state of the art, the most useful preparation routes and the potential applications of these materials.
Journal of Membrane Science | 2005
Chedarampet S. Karthikeyan; Suzana P. Nunes; L.A.S.A. Prado; Mariela Leticia Ponce; Hugo Silva; B. Ruffmann; Karl Schulte
European Polymer Journal | 2011
S.C. Schulz; Gabriella Faiella; S.T. Buschhorn; L.A.S.A. Prado; M. Giordano; Karl Schulte; Wolfgang Bauhofer
Polymer Degradation and Stability | 2013
O. Starkova; Swetha Chandrasekaran; L.A.S.A. Prado; Folke Tölle; Rolf Mülhaupt; Karl Schulte
Composites Part A-applied Science and Manufacturing | 2013
Swetha Chandrasekaran; Gabriella Faiella; L.A.S.A. Prado; Folke Tölle; Rolf Mülhaupt; Karl Schulte
Journal of Polymer Science Part A | 2008
Marcos Ghislandi; L.A.S.A. Prado; Alejandra de la Vega Oyerviedes; Hans Wittich; Karl Schulte; Ana Barros-Timmons
Macromolecular Materials and Engineering | 2010
Ricardo Chávez-Medellín; L.A.S.A. Prado; Karl Schulte
Composites Science and Technology | 2011
Kristina Brandt; Vitalij Salikov; Hüseyin Özcoban; Peter Staron; Andreas Schreyer; L.A.S.A. Prado; Karl Schulte; Stefan Heinrich; Gerold A. Schneider
Journal of Polymer Science Part B | 2012
Sandra D. F. C. Moreira; Carlos J. R. Silva; L.A.S.A. Prado; Manuel F. M. Costa; Victor I. Boev; J. Martín-Sánchez; M. J. M. Gomes