Hydrogen storage in activated carbons produced from coals of different ranks: Effect of oxygen content

Autor: Alain Celzard, M. C. Tellez-Juarez, Edilso Reguera, N. Fernandez-Huerta, Weigang Zhao, Maria Izquierdo, Vanessa Fierro
Přispěvatelé: Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centro de Investigación en Ciencia Aplicada y Tecnologia Avanzada, Instituto Politecnico Nacional [Mexico] (IPN), Ecole Nationale Supérieure des Technologies et Industries du Bois (ENSTIB), Université de Lorraine (UL), Fujian Agriculture and Forestry University (FAFU), Carbon Nanostructures and Nanotechnology Group (ICB-CSIC), Carbon Nanostructures and Nanotechnology Group
Rok vydání: 2014
Předmět:
Inorganic chemistry
Energy Engineering and Power Technology
02 engineering and technology
010402 general chemistry
01 natural sciences
Hydrogen adsorption
[SPI.MAT]Engineering Sciences [physics]/Materials
Hydrogen storage
chemistry.chemical_compound
Desorption
[SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph]
medicine
Oxygen content
[SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph]
Potassium hydroxide
Renewable Energy
Sustainability and the Environment
Chemistry
Anthracite
[CHIM.MATE]Chemical Sciences/Material chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
0104 chemical sciences
[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism
[CHIM.POLY]Chemical Sciences/Polymers
Fuel Technology
[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]
[SPI.MECA.THER]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph]
0210 nano-technology
Activated carbon
medicine.drug
Zdroj: International Journal of Hydrogen Energy
International Journal of Hydrogen Energy, Elsevier, 2014, 39 (10), pp.4996-5002. ⟨10.1016/j.ijhydene.2014.01.071⟩
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2014.01.071
Popis: International audience; 20 activated carbons (ACs) were prepared by activation of four coals of different ranks (bituminous, low-ash bituminous and sub-bituminous coals, and one anthracite) with potassium hydroxide, in order to evaluate their hydrogen storage capacities at -196 degrees C. The effect of surface area and oxygen content on hydrogen storage was examined. Oxygen content was determined by temperature-programmed desorption. The significance of oxygen content on hydrogen storage capacity was evaluated by Analysis of Variance (ANOVA). Apparent surface areas higher than 3000 m(2) g(-1) and hydrogen adsorption as high as 6.8 wt.% were obtained. The best results were obtained with ACs from bituminous coals. No significant effect of oxygen content on hydrogen adsorption was observed. We concluded that surface area controls hydrogen storage capacity at -196 degrees C.
Databáze: OpenAIRE
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