Preparation of nanoscale platinum(0) clusters in glassy carbon and their catalytic activity

Hutton, Howard D.; Pocard, Nicolas L.; Alsmeyer, Daniel C.; Schueller, Olivier; Spontak, Richard J.; Huston, Michael E.; Huang, Wenhua; McCreery, Richard L.; Neenan, Thomas X.; Callstrom, Matthew R.

doi:10.1021/cm00036a010

Cited by 33 publications

(14 citation statements)

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“…4C). In an earlier study, Hutton et al [38] reported that the exchange current density of Pt clusters-modified glassy carbon for hydrogen evolution increased with a decrease in Pt particle size. Jia et al [39] also found that biosensors fabricated with smaller-sized Au NPs exhibited a larger current response than those prepared with larger-sized Au NPs.…”

Section: Characterization Of Au Ncsmentioning

confidence: 98%

Non-enzymatic hydrogen peroxide detection using gold nanoclusters-modified phosphorus incorporated tetrahedral amorphous carbon electrodes

Liu

Dong

Liu

et al. 2010

Electrochimica Acta

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Section: Characterization Of Au Ncsmentioning

confidence: 98%

Non-enzymatic hydrogen peroxide detection using gold nanoclusters-modified phosphorus incorporated tetrahedral amorphous carbon electrodes

Liu

Dong

Liu

et al. 2010

Electrochimica Acta

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“…52,77,78,102 Several reports among these document the preparation of homopolymers with alkyne-functional backbones through condensation or ring-opening polymerization and their subsequent reaction with cobalt 89,103,104 or platinum. 105 To enable the incorporation of multiple types of metallic nanoparticles within the same copolymeric matrix, we are ultimately interested in the preparation of ABC triblock copolymers such as poly(vinylpyridine)-block-polystyreneblock-poly(alkyne-functional monomer) (PVP-PS-PAFm). 91,106 To set the stage for these studies, we began with investigations into the preparation of diblock copolymers of styrene and a range of alkyne-functional monomers, including 4-phenylethynylstyrene, 4-hexynylstyrene, 4-(trimethylsilylethynyl)styrene, 4-[(3-hexynyloxy)-methyl]styrene, and 4-[(3-decynyloxy)methyl]-styrene (Fig.…”

Section: Toward the Arrangement Of Multiple Metalsmentioning

confidence: 99%

Hybrid metal–polymer composites from functional block copolymers

Grubbs

2005

J. Polym. Sci. A Polym. Chem.

142

102

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ABSTRACT:The combination of metals and polymers in hybrid materials is a research area of great current interest. A number of methods for controlling the positioning of metallic species within polymer matrices on the nanometer scale have been developed. This highlight focuses on the use of functional block copolymers for the localization of metal species, especially nanoparticles, on the nanometer scale through block copolymer phase segregation. Research from the author's group on the use of alkyne-functional block copolymers for the preparation of cobalt-containing materials is discussed in this context.

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“…They are used in sensors [43], in supercapacitors [44], in power sources [45], and, first of all, in fuel cells [46,47]. The techniques used for the fabrication of fractal films are various: reduction [48,49], thermal decomposition [50,51], deposition in a vacuum out of corresponding precursors [52], spray of noble metals onto a substrate [53], electrodeposition out of solutions of salts [54,55].…”

Section: The Catalyst Is Distributed Over the External Surface Of A Gmentioning

confidence: 99%

Calculating a Characteristic Bulk Current Density in the Cathode of a Hydrogen-Oxygen Fuel Cell with a Solid Polymer Electrolyte

Chirkov

Rostokin

2005

Russ J Electrochem

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The magnitude of currents of electrodes in hydrogen-oxygen fuel cells of all types is shown to be fully determined by values of the effective coefficient of gas diffusion, the effective coefficient of ionic conduction, and the characteristic bulk current density. The characteristic bulk current density is estimated in two versions for cathodes with Nafion: the catalyst is distributed in the bulk of substrate grains or at their external surface. The currents commensurate with those observed in experiments are given only by the second version. Means of computer-aided simulation are used to imitate the formation of fractal films composed of the catalyst particles on the surface substrate grains. The simulation means made it possible to link the magnitude of the specific surface area of platinum particles with its weight content in substrate grains. Electrochemical characteristics of the cathode with Nafion-the potential dependence of the optimum magnitude of the overall current and the thicknesses of the active layer and the weight of platinum in it, as well as the magnitudes of the optimum current generated by a unit weight of platinum-are calculated. A notion of "norm" is introduced for the characteristic bulk current density of the cathode. 1 × 10 -3 A cm -3 is the electrochemical-process intensity, which the technology of preparation of active layers of cathodes can provide at this stage in the development of fuel cells with a solid polymer electrolyte.

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Preparation of nanoscale platinum(0) clusters in glassy carbon and their catalytic activity

Cited by 33 publications

References 0 publications

Non-enzymatic hydrogen peroxide detection using gold nanoclusters-modified phosphorus incorporated tetrahedral amorphous carbon electrodes

Non-enzymatic hydrogen peroxide detection using gold nanoclusters-modified phosphorus incorporated tetrahedral amorphous carbon electrodes

Hybrid metal–polymer composites from functional block copolymers

Calculating a Characteristic Bulk Current Density in the Cathode of a Hydrogen-Oxygen Fuel Cell with a Solid Polymer Electrolyte

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