Particle size effect in methane activation over supported palladium nanoparticles

Catalytic activation and reforming of methane on supported palladium clusters

Article history: Received 29 March 2010 Revised 25 May 2010 Accepted 2 June 2010 Available online 8 July 2010

PARTICLE SIZE CHARACTERIZATION OF NANOPARTICLES – A PRACTICALAPPROACH

Abstract: Most properties of nanoparticles are size-dependent. In fact, the novel properties of nanoaprticles do not prevail until the size has been reduced to the nanometer scale. The particle size and size distribution of alumina nanoparticle, as a critical properties, have been determined by transmission electron microscopy (TEM), photon correlation spectroscopy (PCS), surface area analysis ...

Electrodeposited Magnesium Nanoparticles Linking Particle Size to Activation Energy

The kinetics of hydrogen absorption/desorption can be improved by decreasing particle size down to a few nanometres. However, the associated evolution of activation energy remains unclear. In an attempt to clarify such an evolution with respect to particle size, we electrochemically deposited Mg nanoparticles on a catalytic nickel and noncatalytic titanium substrate. At a short deposition time ...

Nanocontact-induced catalytic activation in palladium nanoparticles.

We report the synthesis and catalytic studies of novel palladium nanostructures assembled from small nanoparticles by a surfactant-templated method. These one-dimensional nanomaterials comprise high-density nanocontacts of approximately 1 nm in contact length at the particle-particle interface. In contrast to dispersed Pd nanoparticles ( approximately 5 nm), the polycrystalline palladium nanowi...

Palladium Nanoparticles Supported by Alumina Nanofibers Synthesized by Electrospinning