منابع مشابه
Exfoliated Graphite Nanofibers for Hydrogen Storage
Exfoliation of graphite nanofibers (GNF) expands the interplanar spacing of the GNF which leads to increased hydrogen storage. The exfoliation technique plays a large role in the resulting GNF microstructure, surface area, and hydrogen storage properties. Variations in preparation conditions expand the GNF lattice from 3.4 Å to over 500 Å. The BET surface area of the exfoliated GNF increases as...
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From first-principle based grand canonical Monte-Carlo simulations, we propose a new hydrogen storage material, lithium-organic pillared graphite, showing high H2 uptake of 4.0 wt% and 41.9 kg m(-3) at 300 K and 100 bar.
متن کاملFormation of Rhombohedral Crystallite in Platelet Graphite Nanofibers
Graphite crystallizes in both hexagonal (2H) and rhombohedral (3R) systems. It is known that the 3R modification in graphite occurs locally by grinding of 2H crystal, and disappears by annealing at high temperature or decomposition of its intercalation compounds [Boehm 1955]. It was reported that the 3R phase content in artificial graphite, which was estimated from the integrated intensities of...
متن کاملCarbon Nanofibers as a Hydrogen Storage Medium for Fuel Cell Applications in the Transportation Sector
In the push to replace fossil fuels and their conversion into energy via the internal combustion engine with cleaner and more renewable energy sources for the transportation sector, hydrogen and the fuel cell have emerged as the best candidates for the future. Hydrogen is readily available in near limitless quantities and produces only water and heat as a byproduct when reacted with oxygen. Whi...
متن کاملHydrogen Dynamics in Magnesium and Graphite
Magnesium, nanotubes, graphitic nanofibers, and graphite represent interesting opportunities for efficient hydrogen storage applications and motivate first-principle investigations of the hydrogen energetics and dynamics that describe such potential technological usage. We present spin-polarized electron-density calculations of adsorption energies and diffusion barriers for both chemisorbed and...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry B
سال: 1998
ISSN: 1520-6106,1520-5207
DOI: 10.1021/jp980114l