Synthesis and catalytic properties of Pd nanoparticles loaded nanoporous TiO2 material

Palladium–nickel catalysts based on ordered titanium dioxide nanorod arrays with high catalytic peformance for formic acid electro-oxidation

Here, a novel DFAFC anode catalyst is presented. Due to the 3D catalytic structure and alloying effect, the mass activity and long-term stability of the Pd₂Ni₃–TiO₂ towards FAO are higher than that of Pd–TiO₂ and commercial PdC.

Atomic Layer Deposition of Pd Nanoparticles on TiO₂ Nanotubes for Ethanol Electrooxidation: Synthesis and Electrochemical Properties

Palladium nanoparticles are grown on TiO2 nanotubes by atomic layer deposition (ALD), and the resulting three-dimensional nanostructured catalysts are studied for ethanol electrooxidation in alkaline media. The morphology, the crystal structure, and the chemical composition of the Pd particles are fully characterized using scanning and transmission electron microscopies, X-ray diffraction, and X-ray photoelectron spectroscopy. The characterization revealed that the deposition proceeds onto the entire surface of the TiO2 nanotubes leading to the formation of well-defined and highly dispersed Pd nanoparticles. The electrooxidation of ethanol on Pd clusters deposited on TiO2 nanotubes shows not only a direct correlation between the catalytic activity and the particle size but also a steep increase of the response due to the enhancement of the metal-support interaction when the crystal structure of the TiO2 nanotubes is modified by annealing at 450 °C in air.

Catalytic properties of Pd nanoparticles supported on Cu2O microspheres for hydrogen peroxide electroreduction

Cu₂O was synthesized by a wet-chemical approach, and Pd electrocatalysts supported on cuprous oxide (Pd/Cu₂O) and Vulcan XC-72 (Pd/C) were synthesized. The Pd/Cu₂O catalyst comprised copper oxide and metallic Cu, improving the catalyst activity for H₂O₂ electroreduction.