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Why hybrid porous solids capture greenhouse gases?
Fé,rey, Gé,rard,Serre, Christian,Devic, Thomas,Maurin, Guillaume,Jobic, Hervé,Llewellyn, Philip L.,De Weireld, Guy,Vimont, Alexandre,Daturi, Marco,Chang, Jong-San Royal Society of Chemistry 2011 Chemical Society reviews Vol.40 No.2
<P>Hybrid porous solids, with their tunable structures, their multifunctional properties and their numerous applications, are currently topical, particularly in the domain of adsorption and storage of greenhouse gases. Most of the data reported so far concern the performances of these solids in this domain, particularly in terms of adsorbed amounts of gas but do not explain at the atomic level why and how adsorption and storage occur. From a combination of structural, spectroscopic, thermodynamic experiments and of molecular simulations, this <I>tutorial review</I> proposes answers to these open questions with a special emphasis on CO<SUB>2</SUB> and CH<SUB>4</SUB> storage by some rigid and flexible hybrid porous materials.</P> <P>Graphic Abstract</P><P>Why and how hybrid porous solids capture gases: exploration combining appropriate <I>in situ</I> measurements and molecular simulations. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c0cs00040j'> </P>
Van de Voorde, Ben,Boulhout, Mohammed,Vermoortele, Frederik,Horcajada, Patricia,Cunha, Denise,Lee, Ji Sun,Chang, Jong-San,Gibson, Emma,Daturi, Marco,Lavalley, Jean-Claude,Vimont, Alexandre,Beurroies, American Chemical Society 2013 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Vol.135 No.26
<P>The influence of the metal ion in the mesoporous metal trimesate MIL-100(Al<SUP>3+</SUP>, Cr<SUP>3+</SUP>, Fe<SUP>3+</SUP>, V<SUP>3+</SUP>) on the adsorptive removal of N/S-heterocyclic molecules from fuels has been investigated by combining isotherms for adsorption from a model fuel solution with microcalorimetric and IR spectroscopic characterizations. The results show a clear influence of the different metals (Al, Fe, Cr, V) on the affinity for the heterocyclic compounds, on the integral adsorption enthalpies, and on the uptake capacities. Among several factors, the availability of coordinatively unsaturated sites and the presence of basic sites next to the coordinative vacancies are important factors contributing to the observed affinity differences for N-heterocyclic compounds. These trends were deduced from IR spectroscopic observation of adsorbed indole molecules, which can be chemisorbed coordinatively or by formation of hydrogen bonded species. On the basis of our results we are able to propose an optimized adsorbent for the deep and selective removal of nitrogen contaminants out of fuel feeds, namely MIL-100(V).</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/2013/jacsat.2013.135.issue-26/ja403571z/production/images/medium/ja-2013-03571z_0007.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ja403571z'>ACS Electronic Supporting Info</A></P>
Seo, You‐,Kyong,Yoon, Ji Woong,Lee, Ji Sun,Hwang, Young Kyu,Jun, Chul‐,Ho,Chang, Jong‐,San,Wuttke, Stefan,Bazin, Philippe,Vimont, Alexandre,Daturi, Marco,Bourrelly, Sandrine,Llewelly WILEY‐VCH Verlag 2012 Advanced Materials Vol.24 No.6
<P>The energy‐efficient dehumidification over hier‐archically porous metal‐organic frameworks (MOFs) with hydrothermal stability is reported on page 806 by Jong‐San Chang and co‐workers. Their promising water sorption properties lead to a new type of advanced water adsorbents for the effective utilization of low‐grade thermal energy as well as solar energy. These MOFs would be potential alternatives to commercial water adsorbents, which are used for industrial or indoor desiccant applications such as desiccant dehumidifiers/humidifiers, gas dryers, adsorptive air‐conditioning systems, fresh water production, and adsorption heat transformation. </P>