amorphous nanocrystalline ni-mo
TRANSCRIPT
8/10/2019 Amorphous Nanocrystalline Ni-Mo
http://slidepdf.com/reader/full/amorphous-nanocrystalline-ni-mo 1/3
Articles
Journal of Materials Research
Journal of Materials Research / Volume 9 / Issue 11 / 1994, pp 2998-3008
Copyright © Materials Research Society 1994
Published online: 03 March 2011
DOI: http://dx.doi.org/10.1557/JMR.1994.2998 (About DOI)
Nanocrystalline Ni-Mo alloys and their application in electrocatalysis
R. Schulza1
, J.Y. Huota1
p1
, M.L. Trudeaua1
, L. Dignard-Baileya1
p2
, Z.H.
Yana1
, S. Jina2
, A. Lamarrea2
, E. Ghalia2
and A. Van Nestea2
a1 Technologie des Matériaux, Institut de Recherche d'Hydro-Québec, Varennes,
Québec, J3X ISI, Canada
a2 Département de Mines et Métallurgie, Université Laval, Ste-Foy, Québec, G1K 7P4,
Canada
Abstract
The structural and electrocatalytic properties of metastable Ni-Mo alloys have been
investigated for the hydrogen evolution reaction in alkaline solutions. Amorphous and
nanocrystalline phases have been prepared by mechanically alloying the elemental
components under various milling conditions. Fcc nanocrystals are formed when the
Mo concentration is smaller than 30 at. %. The nanocrystalline state becomes unstablewith respect to the amorphous phase when the Mo content in the solid solution exceeds
30 at. %. The electroactive phase for the hydrogen evolution reaction in alkaline
solutions is the nanocrystalline supersaturated solid solution. The presence of oxygen
during the milling process improves the properties of the alloys.
Nanocrystalline Ni-Mo Alloys Prepared by Mechanical Alloying for
Applications in Catalysis
1992 MRS Fall Meeting.
Article author query
schulz r [Google Scholar]
dignard-bailey l [Google Scholar]
trudeau ml [Google Scholar]
huot jy [Google Scholar]
yan zh [Google Scholar]
R. Schulza3
, L Dignard-Baileya1
, M.L Trudeaua3
, J.Y. Huota2
and Z.H.
Yana3
a1 Energy Diversification Research Lab, Canmet, Varennes, P.Q Canada
8/10/2019 Amorphous Nanocrystalline Ni-Mo
http://slidepdf.com/reader/full/amorphous-nanocrystalline-ni-mo 2/3
a2 Centre de Technologie Noranda, Pointe Claire, P.Q, Canada H9R IG5
a3 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
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.
MRS Proceedings
MRS Proceedings / Volume 286 / 1992,
Copyright © Materials Research Society 1993
DOI: http://dx.doi.org/10.1557/PROC-286-221 (About DOI)
Nanocrystalline Ni-Mo Alloys Prepared by Mechanical Alloying for
Applications in Catalysis
1992 MRS Fall Meeting.
R. Schulza3
, L Dignard-Baileya1
, M.L Trudeaua3
, J.Y. Huota2
and Z.H.
Yana3
a1 Energy Diversification Research Lab, Canmet, Varennes, P.Q Canada
a2 Centre de Technologie Noranda, Pointe Claire, P.Q, Canada H9R IG5
a3 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
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 thenanocrystalline alloys for the hydrogen evolution reaction in alkaline solutions have
8/10/2019 Amorphous Nanocrystalline Ni-Mo
http://slidepdf.com/reader/full/amorphous-nanocrystalline-ni-mo 3/3
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.