Performance of carbon arc-discharge nanotubes to hydrogen energy storage
Résumé
Adsorption properties of gram-scale samples of different kind of arc discharge nanotubes were studied, namely: (A) raw collaret collected on the cathode, (B) raw soots collected on the lateral reactor wall, (C) thermally treated soot, and (D) thermally then chemically treated soot. The morphology, structure, and composition of these materials were characterized by SEM, TEM, TGA, and BET. In addition, hydrogen adsorption isotherms were recorded experimentally for A, B, and D samples over the pressure range of 0 to 55 bar at ambient temperature. Our experiments indicated a maximum - yet weak - hydrogen storage at room temperature of ∼0.13 H 2 wt% for the purified product (D). Copyright © 2007 American Scientific Publishers All rights reserved.
Mots clés
Macromolecular Substances
Materials Testing
Molecular Conformation
Nanotechnology
Carbon
Particle Size
Surface Properties
Adsorption properties
ambient temperatures
Arc discharging
Carbon arcs
hydrogen adsorption isotherms
Hydrogen Energy
Pressure ranges
Room-temperature (RT)
Adsorption
Atmospheric temperature
Carbon nanotubes
Cavity resonators
Discharge (fluid mechanics)
Dust
Energy storage
Fluid mechanics
Gas adsorption
Nanopores
Nanostructures
Nanotubes
Soot
Storage (materials)
Structure (composition)
Hydrogen storage
carbon nanotube
hydrogen
article
chemistry
conformation
isolation and purification
macromolecule
methodology
surface property
ultrastructure
Absorption
Crystallization
Electrochemistry
Energy Transfer