Página 1 dos resultados de 2 itens digitais encontrados em 0.009 segundos

Does functionalisation enhance CO₂ uptake in interpenetrated MOFs? An examination of the IRMOF-9 series; Does functionalisation enhance CO2 uptake in interpenetrated MOFs? An examination of the IRMOF-9 series

Babarao, R.; Coghlan, C.; Rankine, D.; Bloch, W.; Gransbury, G.; Sato, H.; Kitagawa, S.; Sumby, C.; Hill, M.; Doonan, C.
Fonte: Royal Soc Chemistry Publicador: Royal Soc Chemistry
Tipo: Artigo de Revista Científica
Publicado em //2014 Português
Relevância na Pesquisa
The effect of pore functionalisation (-I, -OH, -OCH3) on a series of topologically equivalent, interpenetrated metal-organic frameworks (MOFs) was assessed by both simulation and experiment. Counter-intuitively, a decreased affinity for CO2 was observed in the functionalised materials, compared to the non-functionalised material. This result highlights the importance of considering the combined effects of network topology and chemical functionality in the design of MOFs for enhanced CO2 adsorption; Ravichandar Babarao, Campbell J. Coghlan, Damien Rankine, Witold M. Bloch, Gemma K. Gransbury, Hiroshi Sato, Susumu Kitagawa, Christopher J. Sumby, Matthew R. Hill and Christian J. Doonan

A complete separation of hexane isomers by a functionalized flexible metal organic framework

Mendes, Patricia A. P.; Horcajada, Patricia; Rives, Sébastien; Ren, Hong; Rodrigues, A.E.; Devic, Thomas; Magnier, Emmanuel; Trens, Philippe; Jobic, Hervé; Ollivier, Jacques; Maurin, Guillaume; Serre, Christian; Silva, José A.C.
Fonte: Wiley-VCH Publicador: Wiley-VCH
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
The separation ability of branched alkane isomers (nHEX, 3MP, 22DMB) of the flexible and functionalized microporous iron(III) dicarboxylate MIL-53(Fe)-(CF3)2 solid is evaluated through a combination of breakthrough experiments (binary or ternary mixtures), adsorption isotherms, X-ray diffraction temperature analysis, quasi-elastic neutron scattering measurements and molecular dynamics simulations. A kinetically controlled molecular sieve separation between the di-branched isomer of hexane 22DMB from a mixture of paraffins is achieved. The reported total separation between mono- and di-branched alkanes which was neither predicted nor observed so far in any class of porous solids is spectacular and paves the way towards a potential unprecedented upgrading of the RON of gasoline.