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Nanoconfinement in Activated Mesoporous Carbon of Calcium Borohydride for Improved Reversible Hydrogen Storage

Nanoconfinement in Activated Mesoporous Carbon of Calcium Borohydride for Improved Reversible Hydrogen Storage

Cezar Comănescu, Giovanni Capurso, Amedeo Maddalena

Nanotechnology. 2012 Sep 28;23(38):385401.

PMID: 22948563

Abstract:

Mesoporous carbon frameworks were synthesized using the soft-template method. Ca(BH(4))(2) was incorporated into activated mesoporous carbon by the incipient wetness method. The activation of mesoporous carbon was necessary to optimize the surface area and pore size. Thermal programmed absorption measurements showed that the confinement of this borohydride into carbon nanoscaffolds improved its reversible capacity (relative to the reactive portion) and performance of hydrogen storage compared to unsupported borohydride. Hydrogen release from the supported hydride started at a temperature as low as 100 °C and the dehydrogenation rate was fast compared to the bulk borohydride. In addition, the hydrogen pressure necessary to regenerate the borohydride from the dehydrogenation products was reduced.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP17068950	Calcium borohydride		17068-95-0	Price

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