Concept

Platinum nanoparticle

Publications associées (224)

Rational Design of Pd-Based Catalysts for Selective Alkyne Hydrogenations

Traditionally, the search for active and selective catalysts involved a rather tedious "hit-and-miss" approach in which hundreds, if not thousands catalysts were tested until the optimal substance was identified. With the advancing theoretical understandin ...

EPFL2011

Structure, solution chemistry, antiproliferative actions and protein binding properties of non-conventional platinum(II) compounds with sulfur and phosphorus donors

Angela Casini

Twelve Pt(II) complexes with cis-PtP2S2 pharmacophores (where P-2 refers to two monodentate or one bidentate phosphane ligand and S-2 is a dithiolato ligand) were prepared, characterized and evaluated as potential antiproliferative agents. The various comp ...

2011

Graphene Nanoplatelet Cathode for Co(III)/(II) Mediated Dye-Sensitized Solar Cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Jun Ho Yum, Ladislav Kavan

Graphene nanoplatelets (GNP) in the form of thin semitransparent film on F-doped SnO2 (FTO) exhibit high electrocatalytic activity for Co(L)(2); where L is 6-(1H-pyrazol-1-yl)-2,2'-bipyridine. The exchange current densities for the Co(2+/)3(+)(L)(2) redox ...

American Chemical Society2011

Graphene Nanoplatelets Outperforming Platinum as the Electrocatalyst in Co-Bipyridine-Mediated Dye-Sensitized Solar Cells

Michael Graetzel, Jun Ho Yum, Ladislav Kavan

Graphene nanoplatelets (GNP) in the form of thin semitransparent films on F-doped SnO2 (FTO) exhibit high electrocatalytic activity for the Co(bpy)(3)(3+/2+) redox couple in acetonitrile electrolyte solution. The GNP film is superior to the traditional ele ...

American Chemical Society2011

Surface plasmon resonance of gold nanoparticles assemblies at liquid | liquid interfaces

Hubert Girault, Mohamad Hojeij, Nathalie Younan, Lydie Ribeaucourt

Surface plasmon resonance (SPR) was observed when a planar close-packed assembly of gold nanoparticles (Au NPs) is adsorbed at the water|1,2-dichloroethane interface. Aqueous gold nanoparticles, 13 or 16 nm in diameter, are deposited at the interface by ad ...

2010

Highly selective hydrogenation of aromatic chloronitro compounds to aromatic chloroamines with ionic-liquid-like copolymer stabilized platinum nanocatalysts in ionic liquids

Paul Joseph Dyson, Zhaofu Fei, Ning Yan, Xiao Yuan

Platinum nanoparticles (PtNPs stabilized by an ionic-liq.-like-copolymer (IP) immobilized in various ionic liqs. (ILs)) effectively catalyze the selective hydrogenation of arom. chloronitro compds. to arom. chloroamines, a reaction of considerable com. sig ...

Royal Society of Chemistry2010

Quantifying electrochemical promotion of induced bipolar Pt particles supported on YSZ

Christos Comninellis, Wolfgang Harbich, Yuehui Li, Michael Hugentobler, Chun Xia

Electrochemical promotion (EP) of CO oxidation is shown for the first time on induced bipolar Pt particles supported on yttria-stabilized zirconia (YSZ). These Pt particles are formed by sputter deposition of high-purity Pt metal followed by sintering. Con ...

Elsevier2010

Thermoresponsive polymers based on polyvinylpyrrolidone: applications in nanoparticle catalysis

Paul Joseph Dyson, Ning Yan, Yuan Yuan, Zhe Li

Two thermoresponsive polymers, poly(3-ethyl-1-vinyl-2-pyrrolidone) and poly(3-butyl-1-vinyl-2-pyrrolidone), with very sensitive and reversible temp.-dependent water soly. were described. The application of these polymers as Au nanocatalyst stabilizers lead ...

2010

Hydrodeoxygenation of lignin-derived phenols into alkanes by using nanoparticle catalysts combined with Bronsted acidic ionic liquids

Paul Joseph Dyson, Ning Yan, Yuan Yuan, Ryan Dykeman

The transformation of lignin-derived phenolic compds. to alkanes was achieved using catalysts based on Bronsted acidic ionic liqs. (ILs). The catalytic system is composed of metal nanoparticles (NPs) and a functionalized Bronsted acidic IL immobilized in a ...

2010

Couches minces nanoporeuses pour la réalisation de dispositifs optiques

Gaëtan Wicht

The physical-chemical properties of polymer films can be modified by embedding inorganic materials (e. g. inorganic nanoparticles) into the polymer matrix. Depending both on the material properties (e. g. nanoparticles concentration) and on the fabrication ...

EPFL2010

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