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|Title:||Facile synthesis and characterizations of mof-5 coordination polymer with various metal linker ratios for ammonia gas storage||Authors:||Misran, Halina||Keywords:||Alcohols
|Issue Date:||2010||Publisher:||Institute of Physics Publishing||Conference:||2nd International Conference on Advances in Renewable Energy and Technologies, ICARET 2016||Abstract:||Metal-organic framework coordination polymer materials of MOF-5 with Fm3m cubic structure and tetrahedral structure were successfully synthesized at room temperature and pressure using liquid-crystal (i.e. surfactant) templating method and direct mixing method. The crystallinity increased as metal (Zn)/linker (benzenedicarboxylic acid, BDC) ratios were varied from 0.3 to 0.5. However, the cubic structure of evacuated framework was relatively disrupted at metal/linker ratio of 0.7. Direct-mixing synthesis approach resulted in MOF-5 with layered tetragonal structure due to the increased mobility of the organic-linker as the metal/linker ratios were increased. On the other hand, liquid-crystal templating method resulted in MOF-5 with cubic structure with sizes of ca. 3-5 micron. Changing the solvent from dimethylformamide to chloroform during the synthesis affected the size of the single cubic to decrease from 5 micron to 3 micron, respectively. Furthermore, MOF-5 prepared with metal/linker ratio 0.5 and aged in solvents with higher crystallinity exhibited higher ammonia adsorption uptake at ca. 7.2%. Â© 2010 American Institute of Physics.||URI:||http://dspace.uniten.edu.my:8080/jspui/handle/123456789/9||DOI:||10.1088/1755-1315/32/1/012060|
|Appears in Collections:||COE Scholarly Publication|
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