Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Robust 3D Boron Nitride Nanoscaffolds for Remarkable Hydrogen Storage Capacity from Ammonia Borane

Abstract : Mesoporous monolithic (3D) boron nitride (BN) structures are synthesized using a template‐assisted polymer‐derived ceramic route. Polyborazylene is selected to impregnate monolithic activated carbon, which is used as template. After pyrolysis and template removal, this method supplies BN compounds with controlled crystallinity and tunable textural properties controlled by the temperature at which they have been annealed (from 1000 to 1450 °C). Monoliths with an interconnected mesoporous network, high specific surface areas from 584 to 728 m2 g−1, significant pore volumes from 0.75 to 0.93 cm3 g−1, and a relatively high compressive strength are generated. These highly porous compounds are used as nanoscaffolds to confine ammonia borane (AB). The composites provide an effective gravimetric hydrogen capacity of up to 8.1 wt %, based on AB measured at 100 °C; this value demonstrates the high potential of this system as a safe potential hydrogen storage material.
Type de document :
Article dans une revue
Domaine :
Liste complète des métadonnées

https://hal.umontpellier.fr/hal-01756995
Contributeur : Philippe FALQUE Connectez-vous pour contacter le contributeur
Soumis le : mardi 3 avril 2018 - 11:42:49
Dernière modification le : samedi 1 octobre 2022 - 03:57:11

Identifiants

Citation

Chrystelle Salameh, Georges Moussa, Alina Bruma, Gilbert Fantozzi, Sylvie Malo, et al.. Robust 3D Boron Nitride Nanoscaffolds for Remarkable Hydrogen Storage Capacity from Ammonia Borane. Energy Technology, Wiley, 2018, 6 (3), pp.570-577. ⟨10.1002/ente.201700618⟩. ⟨hal-01756995⟩

Partager

Métriques

Consultations de la notice

426