Platinum-based nanostructured materials: synthesis, properties, and applications.

Platinum nanoparticles with a diameter of 2-3 nm were prepared and used in combination with single-wall carbon nanotubes (SWCNTs) for fabricating electrochemical sensors with remarkably improved sensitivity toward hydrogen peroxide. Nafion, a perfluorosulfonated polymer, was used to solubilize SWCNTs and also displayed strong interactions with Pt nanoparticles to form a network that connected Pt nanoparticles to the electrode surface. TEM and AFM micrographs illustrated the deposition of Pt nanoparticles on carbon nanotubes whereas cyclic voltammetry confirmed an electrical contact through SWCNTs between Pt nanoparticles and the glassy carbon (GC) or carbon fiber backing. With glucose oxidase (GOx) as an enzyme model, we constructed a GC or carbon fiber microelectrode-based biosensor that responds even more sensitively to glucose than the GC/GOx electrode modified by Pt nanoparticles or CNTs alone. The response time and detection limit (S/N = 3) of this biosensor was determined to be 3 s and 0.5 microM, respectively.

Electrochemical biosensing platforms using platinum nanoparticles and carbon nanotubes.

Designer platinum nanoparticles: Control of shape, composition in alloy, nanostructure and electrocatalytic property

Electrochromics for smart windows: Oxide-based thin films and devices

Electrochemical detection of carbohydrates using copper nanoparticles and carbon nanotubes

Templating of electrodeposited platinum group metals as a tool to control catalytic activity

Nanoparticles of Pt hydrosol immobilised on Au support: an approach to the study of structural effects in electrocatalysis

Palladium—polyethylene glycol quasitemplate electroplates: The effect of polymer molecular weight

The difference in degradation behavior of titania-doped tin dioxide films is explained by a pronounced effect of the doping level on the film dispersity and fine distribution of titania. A two to three times decrease in nanoparticles sizes in the doped films compared with nanoparticles in SnO2 film (20–30 nm) is revealed by using scanning tunneling microscopy (STM). Such STM data (measured in ex situ configuration) combined with XRD and Mossbauer spectroscopy analysis confirm that the nanoparticles are composed of nanostructured heavily disordered SnO2 and TiO2 rutile solid solution or of amorphous phase containing both SnO2 and TiO2, the content of the crystalline and amorphous phases being approximately equal.

Nanostructured SnO 2 -TiO 2 films as related to lithium intercalation

Cathodic electrocrystallization and electrochromic properties of doped rechargeable oxotungstates

S. Yu. Vassiliev

Papers

Templating of electrodeposited platinum group metals as a tool to control catalytic activity

Nanoparticles of Pt hydrosol immobilised on Au support: an approach to the study of structural effects in electrocatalysis

Palladium—polyethylene glycol quasitemplate electroplates: The effect of polymer molecular weight

Nanostructured SnO 2 -TiO 2 films as related to lithium intercalation

Cathodic electrocrystallization and electrochromic properties of doped rechargeable oxotungstates