Anisotropy of Co nanoparticles induced by swift heavy ions

…, JP Stoquert, C Estournes, C Cerruti, JJ Grob, JL Guille… - Physical Review B, 2003 - APS
Spherical metallic nanoparticles have been formed in SiO 2 layers by 160-keV implantation
of Co ions at a fluence of 10 17 ions cm− 2. The implanted samples were next irradiated with …

Nickel nanoparticles in silica gel: preparation and magnetic properties

…, J Happich, T Quaranta, P Wissler, JL Guille - Journal of Magnetism …, 1997 - Elsevier
The reduction of nickel in silica gels was measured as a function of nickel content within the
temperature range 600–900C. This leads to the formation of metallic nickel nanoparticles …

Synthesis and Characterization of Supported Co2P Nanoparticles by Grafting of Molecular Clusters into Mesoporous Silica Matrixes

…, JL Guille, B Lebeau, JL Paillaud… - Chemistry of …, 2003 - ACS Publications
High-quality Co 2 P nanoparticles have been obtained from diphosphine-substituted molecular
cobalt clusters anchored into an inorganic matrix. The synthesis was followed stepwise …

Elongated Co nanoparticles induced by swift heavy ion irradiations

…, C Estournes, JJ Grob, D Muller, JL Guille… - Nuclear Instruments and …, 2004 - Elsevier
Spherical nanoparticles have been formed in SiO 2 layers by 160 keV Co + ion implantation.
Different particle sizes have been obtained depending on implantation fluence (2×10 16 , 5…

Reduction of copper in soda-lime-silicate glass by hydrogen

C Estournes, N Cornu, JL Guille - Journal of non-crystalline solids, 1994 - Elsevier
The reduction of copper in soda-lime-silicate glasses by hydrogen was measured as a function
of time and copper content within the temperature range 440 to 650C. Copper is reduced …

Irradiations of implanted cobalt nanoparticles in silica layers

…, C Cerruti, C Estournes, JJ Grob, JL Guille… - Nuclear Instruments and …, 2003 - Elsevier
Cobalt ions have been implanted at an energy of 160 keV at fluences of 2×10 16 , 5×10 16
and 10 17 Co + cm −2 in silica layers and at temperatures of 77, 295 and 873 K. The …

Metal (Fe, Co, Ni) nanoparticles in silica gels: Preparation and magnetic properties

T Lutz, C Estournes, JL Guille - Journal of sol-gel science and technology, 1998 - Springer
Metal containing silica gels with a Me/Si molar ratio between 0.01 and 0.2 are submitted to
thermal treatment under hydrogen within the temperature range 600 to 1000C. The changes …

Reduction of nickel in soda—lime—silicate glass by hydrogen

C Estournes, T Lutz, JL Guille - Journal of non-crystalline solids, 1996 - Elsevier
The reduction of nickel in a soda—lime—silicate glass by hydrogen was measured as a
function of time at 600C. Nickel is reduced to the metallic state in a surface layer whose …

Optical properties of copper-doped silica gels

T Lutz, C Estournes, JC Merle, JL Guille - Journal of alloys and compounds, 1997 - Elsevier
Copper-doped silica xerogels, obtained by the sol-gel process, have been submitted to
various thermochemical treatments. Depending on copper concentration, treatment time, …

Nickel nano-particles in silica gel monoliths: control of the size and magnetic properties

…, C Estournes, M Richard-Plouet, JL Guille - Materials Science and …, 2001 - Elsevier
Monolithic samples containing 1 and 5 mol% of nickel(II) have been prepared. After thermal
treatment Ni(II) is reduced to metallic Ni particles, the size of the particles and the inter-…