Now showing items 1-10 of 195
Electrocatalysis on noble metal and noble metal alloys dispersed on high surface area carbon
(Ecole Polytechnique Montreal, 2003-01-01)
In this work, a simple route to prepare carbon supported Pt/C, Pt:Ru/C, Pt:Mo/C and Pt:Ru:Mo/C catalysts is reported. The electrochemical properties of the several carbon materials used as substrates in the absence and in ...
Electrocatalysis of hydrogen evolution reaction on Pt electrode surface-modified by S-2 chemisorption
(Elsevier B.V., 2007-04-01)
Kinetic studies of hydrogen evolution reaction (HER) at the surface of Pt in alkaline conditions, reported in this paper, show that electrocatalytic activity is enhanced after adsorption of S-2 ions. EIS and steady-state ...
Hydrogen oxidation on ordered intermetallic phases of platinum and tin - A combined experimental and theoretical study
Hydrogen oxidation on the surfaces of the intermetallic compounds Pt 3Sn, PtSn and PtSn2 has been studied by the rotating disc electrode technique. Pt3Sn and PtSn were found to be good catalysts, about as good as Pt, while ...
Volcano plots in hydrogen electrocatalysis: uses and abuses
Sabatier’s principle suggests, that for hydrogen evolution a plot of the rate constant versus the hydrogen adsorption energy should result in a volcano, and several such plots have been presented in the literature. A ...
The role of HBF(4) in electro-catalysis: Arsenic contamination and anion adsorption
(ELSEVIER SCIENCE SA, 2011)
We present in this work a comprehensive investigation of the role played by dissolved tetrafluoroboric acid on the electrochemical response of a polycrystalline platinum electrode in acidic media. HBF(4) from two different ...
Electrocatalysis on Noble Metal and Noble Metal Alloys Dispersed on High Surface Area Carbon
In this work, a simple route to prepare carbon supported Pt/C, Pt:Ru/C, Pt:Mo/C, and Pt:Ru:Mo/C catalysts is reported. The electrochemical properties of the several carbon materials used as substrates in the absence and ...
The Fabrication and Characterization of a Nickel Nanoparticle Modified Boron Doped Diamond Electrode for Electrocatalysis of Primary Alcohol Oxidation
(Wiley-v C H Verlag Gmbh, 2009-12-01)
We report the fabrication of a Ni nanoparticle modified BDD electrode and its application in the electrocatalysis of primary alcohol electrooxidation. Modification was achieved via electrodeposition from Ni(NO3)(2) dissolved ...
Layer-by-layer assemblies of highly connected polyelectrolyte capped-Pt nanoparticles for electrocatalysis of hydrogen evolution reaction
(Elsevier Science, 2017-09-15)
Herein we present a simple one-step method to produce polyelectrolyte-capped Pt nanoparticles able to be assembled into layer-by-layer arrays with a linear dependence of the amount of deposited material on the number of ...
Hydrogen Evolution Reaction on Nanostructures Electrodes—a Scenario on Stepped Silver Surfaces
(Springer New York LLC, 2017-11)
We have investigated the scenario for the hydrogen evolution reaction at stepped silver surfaces in acid solutions at high overpotentials using a simple kinetic model. Two independent types of sites, at the steps and at ...
ELECTROCHEMICAL REDUCTION OF NITRITE AT POLYMERIC Co (II)-TETRA-3-AMINO-PHENYL-PORPHYRIN MODIFIED ELECTRODE
(Sociedad Chilena de Química, 2007)