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Synthesis of Ca Decorated Carbon Nanostructures for Hydrogen Storage

Published online by Cambridge University Press:  31 January 2011

Daniele Mirabile Gattia ,
Marco Vittori Antisari ,
Renzo Marazzi ,
Amelia Montone ,
Emanuela Piscopiello  and
Claudio Mingazzini
Daniele Mirabile Gattia
Affiliation:
daniele.mirabile@enea.it, ENEA, MAT-COMP, Rome, Italy
Marco Vittori Antisari
Affiliation:
vittori@enea.it, ENEA, MAT-COMP, Rome, Italy
Renzo Marazzi
Affiliation:
renzo.marazzi@enea.it, ENEA, MAT-COMP, Rome, Italy
Amelia Montone
Affiliation:
montone@enea.it, ENEA, MAT-COMP, Rome, Italy
Emanuela Piscopiello
Affiliation:
emanuela.piscopiello@enea.it, ENEA, MAT-COMP, Rome, Italy
Claudio Mingazzini
Affiliation:
c.mingazzini@faenza.enea.it, ENEA, MAT-ING, Faenza, Italy
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Abstract

The AC powered electric arc has been used to synthesize single wall carbon nanohorns aggregates with Ca dispersed inside. To this purpose the electric arc has been ignited between two electrodes, one of which was constituted by a mixture of graphite and CaCO3. The experimental evidence on the microstructure and on the chemical composition has been obtained by observation with a transmission electron microscope equipped with X-ray microanalysis. X-ray diffraction revealed the presence of residual CaCO3 indicating that the process has still to be optimized. The experiment represents a first attempt to decorate carbon nanostructures with alkaline earth metals, in particular Ca, by this relatively simple method. These composites are theorized to adsorb relevant amounts of hydrogen. Further work will be focused to optimize the dispersion of Ca atoms in the carbon nanostructure.

Keywords

CnanostructureH
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1204: Symposium K – Nanotubes and Related Nanostructures-2009 , 2009 , 1204-K05-31
Copyright
Copyright © Materials Research Society 2010

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