Study of Adsorption Properties on Lithium Doped Activated Carbon Materials

• Authors: S. Łoś , L. Duclaux , M. Letellier , P. Azaïs
• Languages of publication: EN

Abstracts

EN

A volumetric method was applied to study an adsorption coefficient of hydrogen molecules in a gas phase on super activated carbon surface. The investigations were focused on getting the best possible materials for the energy storage. Several treatments on raw samples were used to improve adsorption properties. The biggest capacities were obtained after high temperature treatment at reduced atmosphere. The adsorption coefficient at 77 K and 2 MPa amounts to 3.158 wt%. The charge transfer between lithium and carbon surface groups via the doping reaction enhanced the energy of adsorption. It was also found that there is a gradual decrease in the adsorbed amount of H_2 molecules due to occupation active sites by lithium ions.

Keywords

EN

84.60.-h; 33.15.-e; 76.30.-v; 79.60.-i

Discipline

• 33.15.-e: Properties of molecules(see also section 31, Electronic structure of atoms and molecules: theory; for molecules of interest in astrophysics, see 95.30.Ky; for structure and properties of biomolecules, see 87.15.-v)
• 84.60.-h: Direct energy conversion and storage(see also section 88.00.00 Renewable energy resources and applications; for electrochemical conversion, see 82.47.-a; for ocean energy extraction, see 92.05.Jn)
• 79.60.-i: Photoemission and photoelectron spectra(for photoelectron spectroscopy, see 87.64.ks in biological physics; 82.80.Pv in chemical analysis)
• 76.30.-v: Electron paramagnetic resonance and relaxation(see also 33.35.+r Electron resonance and relaxation in atomic and molecular physics; 87.80.Lg Magnetic and paramagnetic resonance in biological physics)

• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 108
• Issue: 2
• Pages: 371-377

Dates

published

2005-08

received

2005-04-24

Contributors

author

S. Łoś

• Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, Poland

author

L. Duclaux

• Centre de Recherche sur la Matière Divisée, 1B rue de la Férollerie, 45071 Orléans Cédex 2, France

author

M. Letellier

• Centre de Recherche sur la Matière Divisée, 1B rue de la Férollerie, 45071 Orléans Cédex 2, France

author

P. Azaïs

• Centre de Recherche sur la Matière Divisée, 1B rue de la Férollerie, 45071 Orléans Cédex 2, France

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Identifiers

DOI

10.12693/APhysPolA.108.371