Platinum nanoparticles-doped sol–gel/carbon nanotubes composite electrochemical sensors and biosensors

Green synthesis, characterization and catalytic activity of palladium nanoparticles by xanthan gum

“…There are enormous changes in physical and chemical properties, both quantitatively and qualitatively, from those of bulk materials as these materials are derived by manipulation at the atomic or molecular levels and because of surface to volume ratio and quantum size effect (Roucoux et al 2002;Rosi and Mirkin 2005;Yang et al 2006). Palladium nanoparticles are of great interest owing to their application both in heterogeneous and homogeneous catalyses, their high surface-to-volume ratio and high surface energy (Narayanan and El-Sayed 2005).…”

Electrodeposition of Nickel Hydroxide Nanoparticles on Carbon Nanotube Electrodes: Correlation of Particle Crystallography with Electrocatalytic Properties

“…21 Moreover, compared to the more traditional support materials, such as carbon black, CNTs have been shown to offer an increased porosity and enhancement of the kinetic rate constant for the electrocatalytic process of interest (for similar metal NP loadings and carbon surface areas). [22][23][24] Several approaches have been adopted for depositing metal NPs onto nanotube electrodes, such as sol gel, 25 sonochemistry, 26 and hydrothermal methods. 27 However, these methods can be time-consuming and challenging to use.…”

Electrocatalytic Reduction of Hydrogen Peroxide on Palladium-Gold Codeposits on Glassy Carbon: Applications to the Design of Interference-Free Glucose Biosensor

“…Various types of carbonaceous materials have been investigated most often as modified electrodes for determining H 2 O 2 : graphite [6,14], glassy carbon [7,8,10,[15][16][17][18][19], carbon-paste electrodes [20,21], carbon nanotubes [22][23][24], and so forth. With these electrodes, the selectivity of the electrochemical response to hydrogen peroxide is improved by using different catalytically active modification components: transition metals and their oxides [15,21], platinum metals, dispersed on their own or mixed with other platinum metals [7,25], and with nanostructured composite films [8,26].…”

“…CNTs have demonstrated to possess a unique combination of excellent structural, mechanical, and electrochemical characteristics [22]. CNT-based electrodes, promoted with metal nanoparticles, are distinguished with their high catalytic activity and have been successfully used for detecting H 2 O 2 [23,24]. The modification was performed through the adsorption of nanoparticles from colloidal solutions or through electrodeposition from a solution of the salt of the respective metal.…”