Chemically modified electrodes. 3. Tin dioxide and titanium dioxide electrodes bearing an electroactive reagent

Modification of Transparent Conducting Oxide ( TCO ) Electrodes through Silanization and Chemisorption of Small Molecules

“…Dye sensitization was first explored as a means of enhancing the photocatalytic properties of TiO 2 [69][70][71][72]. Spitler and coworkers investigated dye sensitization of ZnO electrodes using carboxylic acid functionalized dyes [4][5][6].…”

Nature and Estimation of Functional Groups on Solid Surfaces

“…Among the groups seccessfully grafted to oxide surfaces are An anion exchanger was produced by reaction of p-trichlorosilyl-2-ethylpyridine with SnOz films or with a TiO z layer on titanium metal and subsequent refluxing with methyl iodide [766] Again, as on silica, amine functions were used for anchoring further groups. Carboxylic acids, e.g.…”

“…The oxide film can often be thickened by oxidative treatment of the metal. It has been found that grafting of other groups by the methods described above is also possible on these oxide layers [766,769]. e) Reaction of transition metal carbonyls with oxide surfaces Within the studies of the reaction of transition metal carbonyls with solid supports (see reviews [229,666,667]) it was discovered that many of these carbonyls are firmly bound on metal oxides, in particular alumina, without a complex-forming pendant group, such as a phosphine group.…”

ESCA Studies of Electrode Surfaces

“…Ti0 2 films (of an estimated thickness of 100 nm) on titanium were prepared by anodization of polished titanium followed by heating in a 10% hydrogen 90% nitrogen mixture for several hours, by chemical vapor deposition, or by heating titanium metal in a Bunsen burner flame. The electrode was derivatized with the electroactive reagent described previously, (149) with ,B-trichlorosilyl-2-ethylpyridine, (153) and 3-(2-aminoethylamino)-propyltrimethoxysilane. o53 , 161) The electrodes were studied by ESCA and electrochemical methods.…”