Size selected Gd nanoparticles and Gd-Pd pair nanoparticles for hydrogen induced switching

Información del proyecto

NANOSWITCH

Identificador del acuerdo de subvención: 21377

Proyecto cerrado

Fecha de inicio 23 Junio 2006

Fecha de finalización 22 Junio 2007

Financiado con arreglo a

• Human resources and Mobility in the specific programme for research, technological development and demonstration "Structuring the European Research Area" under the Sixth Framework Programme 2002-2006

Coste total Sin datos

Aportación de la UE € 106 761,00

Coordinado por

UNIVERSITÄT DUISBURG-ESSEN
Alemania

Objetivo

The phenomenon of hydrogen induced changes in structural, optical and electrical properties of rare earth metals has been used to fabricate switchable mirrors. To improve the hydrogenation characteristics for switchable mirror applications, epitaxial, poly crystalline rare earth films, alloys of RE with Mg and RE-Mg multiplayer structures have been used. The electrical and optical switching has also investigated on macroscopic scale in nano-particulate layers having a large size distribution. The present proposal aims to investigate the hydrogen induced switching phenomenon on nano scale by using size selected gadolinium nano-particles. The role of the catalytic palladium during hydrogen loading and unloading will be investigated by synthesizing Gd-Pd pair nano-particles via gas phase synthesis and size fractionation. Stability of Gd nano-particle layers in oxygen ambient will be studied by measuring the changes in electrical and optical properties of the Gd layer as a function of exposure time in oxygen ambient. The dependence of hydrogenation characteristics on nano-particle size will be determined by studying electrical properties of nano-particle layers and individual nano-particles. This will be carried out using both macroscopic and nano-scaled characterization techniques like Hall effect and scanning tunnelling microscopy. Role of Pd will be ascertained by comparing the hydrogenation characteristics of Gd nano-particle layer having Pd over layer and Gd ¿Pd pair nano-particles. This study will open up new research direction towards, i) synthesis of complex material (Gd, Pd) in nanoparticle and pair-nanoparticle form, ii) study of hydrogen-rare earth nano-particle interaction and iii) fabrication of hydrogen induced nano-switches.

Ámbito científico (EuroSciVoc)

CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véase: https://op.europa.eu/en/web/eu-vocabularies/euroscivoc.

• ciencias naturales › ciencias químicas › electroquímica › electrólisis
• ciencias naturales › ciencias químicas › química inorgánica › metales de transición
• ciencias naturales › ciencias físicas › óptica › microscopía › electron microscopy
• ciencias naturales › ciencias físicas › electromagnetismo y electrónica › dispositivo semiconductor
• ingeniería y tecnología › nanotecnología › nanomateriales

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Palabras clave

• Rare earth metals
• hydrogen induced switching
• nanoparticles

Programa(s)

• FP6-MOBILITY - Human resources and Mobility in the specific programme for research, technological development and demonstration "Structuring the European Research Area" under the Sixth Framework Programme 2002-2006

Tema(s)

• MOBILITY-2.3 - Marie Curie Incoming International Fellowships (IIF)

Convocatoria de propuestas

FP6-2004-MOBILITY-7
Consulte otros proyectos de esta convocatoria

Régimen de financiación

IIF -

Coordinador

UNIVERSITÄT DUISBURG-ESSEN

• Aportación de la UE: Sin datos
• Dirección: Forsthausweg 2 ; DUISBURG ; Alemania
• Coste total: Sin datos