LOPES DA COSTA , Tania Isabel

Esta tesis se encuadra dentro de un proyecto titulado "Estudios sobre la reactividad química en condiciones de geometría restringida". Se pretende, de acuerdo con el título y la temática del proyecto, estudiar cómo influyen las condiciones de geometría restringida en la reactividad química. En particular, se aborda el estudio de los...

The anchoring effect on free-base carboxyphenyl porphyrin films using TiO2 microstructured columns as a host matrix and its influence on NO2 sensing have been studied in this work. Three porphyrins have been used: 5-(4-carboxyphenyl)10,15,20- triphenyl-21H,23H-porphyrin (MCTPP); 5,10,15,20-tetrakis(4-carboxyphenyl)-21H,23Hporphyrin (p-TCPP);...

Open porous and transparent microcolumnar structures of TiO2 prepared by physical vapour deposition in glancing angle configuration (GLAD-PVD) have been used as host matrices for two different fluorescent cationic porphyrins, 5-(N-methyl 4-pyridyl)-10,15,20-triphenyl porphine chloride (MMPyP) and meso-tetra (N-methyl 4-pyridyl) porphine...

The optical gas sensing properties of Zn-(ii)-5,10,15,20-tetra(3- carboxyphenyl)porphyrin (m-ZnTCPP) and Zn-(ii)-5,10,15,20-tetra(4-carboxyphenyl) porphyrin (p-ZnTCPP) bound to microcolumnar TiO2 thin films have been compared and explained in terms of their different molecular structure and anchoring to the titania surface. This different...