Influence of Surface Development of Ni/W Coatings on the Kinetics of the Electrolytic Hydrogen Evolution

Magdalena Popczyk; Bożena Łosiewicz

doi:10.4028/www.scientific.net/SSP.228.293

Paper Titles

The Hydrogen Evolution Reaction on Ni Electrode Material Modified with Molybdenum(IV) Oxide and Chromium(III) Oxide Powders
p.273

Effect of Molybdenum(IV) Oxide on the Process of Hydrogen Evolution on Ni+Mo Electrolytic Composite Coatings
p.277

Electrochemical Characterization of Nickel-Based Composite Coatings Containing Molybdenum or Tungsten Nanopowders
p.283

Effect of Molybdenum Powder Granulation on Electrochemical Properties of Ni+Mo Composite Coatings
p.288

Influence of Surface Development of Ni/W Coatings on the Kinetics of the Electrolytic Hydrogen Evolution
p.293

Electrochemical Characterization of Nickel-Phosphorus Based Coatings Containing Cobalt
p.299

Influence of Thermal Treatment on the Electrochemical Properties of Ni+W+Mo+Si Composite Coatings in an Alkaline Solution
p.305

Effect of Phosphorus on the Corrosion Resistance of Nickel Electrocoatings
p.310

A Coulometric Method by Local Anodic Dissolution for Measuring the Thickness of Ni/Cu Multi-Layer Electrocoatings
p.319

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Influence of Surface Development of Ni/W Coatings on the Kinetics of the Electrolytic Hydrogen Evolution

Abstract:

The Ni+W composite coatings were prepared by electrodeposition under the galvanostatic conditions (j_dep = -300 mA cm^-2) from the nickel plating bath containing an addition of tungsten powder of different granulation (<150 nm, 12 μm, <150 μm). For comparison, the Ni-W alloy coating was also obtained. Studies of hydrogen evolution reaction (HER) were carried out in 5 M KOH solution at room temperature using steady-state polarization and electrochemical impedance spectroscopy (EIS) measurements. It was found that for the Ni+W (<150 μm) composite coating increase in the activity of HER was observed in comparison with the others coatings.

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Periodical:

Solid State Phenomena (Volume 228)

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293-298

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https://doi.org/10.4028/www.scientific.net/SSP.228.293

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Online since:

March 2015

Authors:

Magdalena Popczyk*, Bożena Łosiewicz

Keywords:

Hydrogen Evolution Reaction, Ni+W Composite Coatings, Ni-W Alloy Coating

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