First evidence of interconnected micro and mesopores in CMK-3 materials

The porous structure and the pore interconnections of mesoporous carbon of CMK-3 type have been studied by means of hyperpolarized 129Xe NMR spectroscopy. Parallel studies of purely microporous carbon and CMK-3 have unambiguously revealed the presence of micropores inside the CMK-3 structure. In add...

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Veröffentlicht in:	Carbon (New York) 2009-08, Vol.47 (10), p.2352-2357
Hauptverfasser:	Onfroy, Thomas, Guenneau, Flavien, Springuel-Huet, Marie-Anne, Gédéon, Antoine
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry Colloidal state and disperse state Cross-disciplinary physics: materials science rheology Exact sciences and technology Fullerenes and related materials diamonds, graphite General and physical chemistry Materials science Physics Porous materials Specific materials
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Zusammenfassung:	The porous structure and the pore interconnections of mesoporous carbon of CMK-3 type have been studied by means of hyperpolarized 129Xe NMR spectroscopy. Parallel studies of purely microporous carbon and CMK-3 have unambiguously revealed the presence of micropores inside the CMK-3 structure. In addition, 129Xe 2D-exchange NMR experiments have clearly shown direct exchange of Xe atoms between the micro and the mesoporosity. This indicates the presence of micropores inside the carbon rods constituting the mesoporous structure of CMK-3 materials.
ISSN:	0008-6223 1873-3891
DOI:	10.1016/j.carbon.2009.04.025