Published July 2014 | Version v1
Journal article Metadata-only

Study of the composition, corrosion, and catalytic properties of Co-W alloys electrodeposited from a citrate pyrophosphate electrolyte

Creators

  • 1. Vernadskii Inst. of General and Inorganic Chemistry, National Academy of Sciences of Ukraine, pr. Palladina 32/34, Kiev142, 03680, Kiev (Ukraine)
  • 2. Inst. of Applied Physics, Academy of Sciences of Moldova, ul. Academiei 5, Chisinau, MD2028 Chisinau (Moldova, Republic of)

Description

This study describes the composition of Co-W alloy coatings deposited from a citrate-pyrophosphate electrolyte, as well as the effect of the surfactants (SAS) on the quality, morphology, and properties of the coatings obtained. High corrosion resistance of the alloys on the order of 10-5 A cm-2 in a chloride solution and 10-3 A cm-2 in a 6.0 M L-1 KOH solution has been exhibited. The electrocatalytic activity in the reduction reaction of hydrogen in an alkaline medium has been studied, and a substantial decrease of the hydrogen overvoltage as compared to pure cobalt has been established. (authors)

Availability note (English)

Available online at http://eom.phys.asm.md/

Additional details

Additional titles

Original title (Russian)
Исследование состава, коррозионных И каталитических своиств сплавов Cо-W, электроосажденных из цитратно-пирофосфатного электролита

Identifiers

URL
http://eom.phys.asm.md/;

Publishing Information

Journal Title
Ehlektronnaya Obrabotka Materialov
Journal Volume
50
Journal Issue
4
Journal Page Range
p. 49-55
ISSN
0013-5739

INIS

Country of Publication
Moldova, Republic of
Country of Input or Organization
Moldova, Republic of
INIS RN
46056382
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CATALYSIS; CITRATES; COBALT ALLOYS; CORROSION; CORROSION RESISTANCE; DEPOSITION; ELECTRODEPOSITION; ELECTROLYTES; HYDROGEN; IMPEDANCE; MORPHOLOGY; PYROPHOSPHATES; SCANNING ELECTRON MICROSCOPY; SURFACES; SURFACTANTS; TUNGSTEN ALLOYS; VOLTAMETRY
Descriptors DEC
ALLOYS; CARBOXYLIC ACID SALTS; CHEMICAL REACTIONS; DEPOSITION; ELECTROLYSIS; ELECTRON MICROSCOPY; ELEMENTS; LYSIS; MICROSCOPY; NONMETALS; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; SURFACE COATING; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
21 refs., 2 tabs., 6 figs., For English version of the journal see 'Surface Engineering and Applied Electrochemistry' (Springer)