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Nanocrystalline Ni-Mo Alloys Prepared by Mechanical Alloying for Applications in Catalysis

Published online by Cambridge University Press:  25 February 2011

R. Schulz ,
L Dignard-Bailey ,
M.L Trudeau ,
J.Y. Huot  and
Z.H. Yan
R. Schulz
Affiliation:
Hydro-Québec, Technologie des Matériaux, Varennes, PQ Canada, J3X 1S1 J. Shinze, A. Lamarre, A. Van Neste and E. Ghali Université Laval, Département de Métallurgie, Ste Foy, PQ Canada, GIK 7P4
L Dignard-Bailey
Affiliation:
Energy Diversification Research Lab, Canmet, Varennes, P.Q Canada
M.L Trudeau
Affiliation:
Hydro-Québec, Technologie des Matériaux, Varennes, PQ Canada, J3X 1S1 J. Shinze, A. Lamarre, A. Van Neste and E. Ghali Université Laval, Département de Métallurgie, Ste Foy, PQ Canada, GIK 7P4
J.Y. Huot
Affiliation:
Centre de Technologie Noranda, Pointe Claire, P.Q, Canada H9R IG5
Z.H. Yan
Affiliation:
Hydro-Québec, Technologie des Matériaux, Varennes, PQ Canada, J3X 1S1 J. Shinze, A. Lamarre, A. Van Neste and E. Ghali Université Laval, Département de Métallurgie, Ste Foy, PQ Canada, GIK 7P4
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Abstract

Amorphous and nanocrystalline Nil-xMox alloys have been prepared by mechanical alloying of pure Ni and Mo elemental powders in an atmosphere containing various amounts of oxygen. Metastable fcc solid solutions are formed when the Mo content is less than 30 at.%. The amorphization of the supersaturated solid solution occurs when the Mo concentration exceeds 30 at.%. The electrocatalytic properties of the nanocrystalline alloys for the hydrogen evolution reaction in alkaline solutions have been investigated. High electrocatalytic activity is found when the average crystal size is below 10 nm and when the supersaturated solid solution contains some oxygen.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 286: Symposium J – Nanophase and Nanocomposite Materials , 1992 , 221
Copyright
Copyright © Materials Research Society 1993

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References

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