Ultrahigh gas storage both at low and high pressures in KOH-activated carbonized porous aromatic frameworks

The carbonized PAF-1 derivatives formed by high-temperature KOH activation showed a unique bimodal microporous structure located at 0.6 nm and 1.2 nm and high surface area. These robust micropores were confirmed by nitrogen sorption experiment and high-resolution transmission electron microscopy (TE...

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Bibliographic Details
Published inScientific reports Vol. 3; no. 1; p. 2420
Main Authors Li, Yanqiang, Ben, Teng, Zhang, Bingyao, Fu, Yao, Qiu, Shilun
Format Journal Article
LanguageEnglish
Published England Nature Publishing Group 13.08.2013
Subjects
Absorption
Adsorption
Carbon
Carbon dioxide
Electron microscopy
Energy storage
Hydroxides - chemistry
Industrial applications
Methane
Methane - chemistry
Methane - isolation & purification
Polycyclic Aromatic Hydrocarbons - chemistry
Porosity
Porous materials
Potassium Compounds - chemistry
Pressure
Sorption
Temperature effects
Transmission electron microscopy
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Summary:The carbonized PAF-1 derivatives formed by high-temperature KOH activation showed a unique bimodal microporous structure located at 0.6 nm and 1.2 nm and high surface area. These robust micropores were confirmed by nitrogen sorption experiment and high-resolution transmission electron microscopy (TEM). Carbon dioxide, methane and hydrogen sorption experiments indicated that these novel porous carbon materials have significant gas sorption abilities in both low-pressure and high-pressure environments. Moreover the methane storage ability of K-PAF-1-750 is among the best at 35 bars, and its low-pressure gas adsorption abilities are also comparable to the best porous materials in the world. Combined with excellent physicochemical stability, these materials are very promising for industrial applications such as carbon dioxide capture and high-density clean energy storage.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep02420