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Photoactive layer-by-layer films of cellulose phosphate and titanium dioxide containing phosphotungstic acid
(Elsevier Science, 2013-07)
A versatile layer-by-layer (LbL) procedure for the preparation of highly dispersed, adherent and porous multilayer films of TiO2 nanoparticles (NPs) and phosphotungstic acid (HPW) on a variety of substrates at room temperature ...
Dimerization of α-pinene, using Phosphotungstic acid supported on SiO2 as catalyst
(Bentham Science Publishers, 2014-01)
The α-pinene dimerization in liquid phase was studied by using phosphotungstic acid catalysts H3PW12O40, (HPW) supported on commercial silica. These catalysts were characterized by XRD, FT-IR and FT-IR of pyridine adsorbed. ...
Effect of the addition of phosphotungstic acid on the thermal stability of zirconium oxide
(Universidad Nacional de Colombia Sede Medellín, 2014-01-22)
Zirconium hydroxide [Zr(OH)4] was synthesized by the sol-gel method using zirconium n-butoxide and 1-butanol as synthesis precursors. A part of the synthesized material was impregnated with phosphotungstic acid (H3PW12O40) ...
Synthesis and characterization of rough electrochromic phosphotungstic acid films obtained by spray-gel process
(Lima (Perú)PE, 2003-07)
Rough electrochromic phosphotungstic acid (PWA) films were fabricated by spraying a gel of phosphotungstate anions with a molar ratio of P:W = 1:12 onto glass substrates precoated with transparent and electrically conducting ...
OBTENTION OF CAMPHENE WITH H3PW12O40 CATALYSTS SUPPORTED ON TiO2, SiO2 AND ZrO2nH2O
(Sociedad Chilena de Química, 2004)
Self-assembled hybrid films of phosphotungstic acid and aminoalkoxysilanes on SiO2/Si surfaces
(Elsevier Science SaLausanneSuíça, 2012)
Validation of the Modification of the Prolonged Papanicolaou Stain for the Diagnosis of Cervical Cancer
(Karger, 2016)
OBJECTIVES: To validate the modification of the prolonged Papanicolaou stain based on the quality control of time, units and staining stages (micro- and macroscopic), and on the stain reactivation based on the control. ...