Effect of Hydrogen Pretreatment of Platinum Nanoparticles on their Catalytic Properties: Reactions with Alkyl Radicals - A Mechanistic Study

ChemCatChem ◽  
2016 ◽  
Vol 8 (17) ◽  
pp. 2761-2764 ◽  
Author(s):  
Ronen Bar-Ziv ◽  
Tomer Zidki ◽  
Israel Zilbermann ◽  
Guy Yardeni ◽  
Dan Meyerstein
Keyword(s):  
Platinum Nanoparticles ◽  
Catalytic Properties ◽  
Mechanistic Study ◽  
Alkyl Radicals ◽  
Hydrogen Pretreatment

Platinum nanoparticle encapsulation during hydrothermal growth of mesoporous oxides: Synthesis, characterization and catalytic properties

2005 ◽  
Vol 900 ◽  
Author(s):  
Robert M. Rioux ◽  
Hyunjoon Song ◽  
James D Hoefelmeyer ◽  
Krisztian Niesz ◽  
Michael Grass ◽  
...  
Keyword(s):  
Particle Size ◽  
Platinum Nanoparticles ◽  
Heterogeneous Catalysts ◽  
Catalytic Properties ◽  
Synthetic Method ◽  
Ethylene Hydrogenation ◽  
Platinum Nanoparticle ◽  
Ordered Mesoporous ◽  
Mesoporous Oxide ◽  
Mesoporous Oxides

ABSTRACTA synthetic method for the design of heterogeneous catalysts incorporating monodisperse platinum nanoparticles into ordered mesoporous oxide frameworks has been developed. Nanoparticles were synthesized in solution in the presence of surface templating polymer and encapsulated into mesoporous oxide matrices. After polymer removal by calcination, ethylene hydrogenation rates were consistent with previously reported results, while superior activity of low coordination atoms in small crystallites during ethane hydrogenolysis was demonstrated. Changes in reaction selectivity with particle size during the hydrogenation/dehydrogenation of cyclohexene were attributed to a hydrogen coverage effect influencing the hydrogenation pathway and the apparent structure sensitivity of the dehydrogenation pathway.

Monodisperse platinum nanoparticles of well-defined shape: synthesis, characterization, catalytic properties and future prospects

2006 ◽  
Vol 39 (3-4) ◽  
pp. 167-174 ◽  
Author(s):  
R. M. Rioux ◽  
H. Song ◽  
M. Grass ◽  
S. Habas ◽  
K. Niesz ◽  
...  
Keyword(s):  
Platinum Nanoparticles ◽  
Catalytic Properties ◽  
Future Prospects

Synthesis and Catalytic Properties of Soluble Platinum Nanoparticles Protected by a Thiol Monolayer

Langmuir ◽  
2004 ◽  
Vol 20 (14) ◽  
pp. 6012-6018 ◽  
Author(s):  
Sven E. Eklund ◽  
David E. Cliffel
Keyword(s):  
Platinum Nanoparticles ◽  
Catalytic Properties

Morphology Control of Platinum Nanoparticles and their Catalytic Properties

2003 ◽  
Vol 5 (1/2) ◽  
pp. 69-80 ◽  
Author(s):  
Akane Miyazaki ◽  
Ioan Balint ◽  
Yoshio Nakano
Keyword(s):  
Platinum Nanoparticles ◽  
Catalytic Properties ◽  
Morphology Control
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