Please use this identifier to cite or link to this item: https://libjncir.jncasr.ac.in/xmlui/handle/10572/2420
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSikdar, Nivedita
dc.contributor.authorHazra, Arpan
dc.contributor.authorMaji, Tapas Kumar
dc.date.accessioned2017-02-21T07:02:06Z-
dc.date.available2017-02-21T07:02:06Z-
dc.date.issued2014
dc.identifier.citationSikdar, N; Hazra, A; Maji, TK, Stoichiometry-Controlled Two Flexible Interpenetrated Frameworks: Higher CO2 Uptake in a Nanoscale Counterpart Supported by Accelerated Adsorption Kinetics. Inorganic Chemistry 2014, 53 (12) 5993-6002, http://dx.doi.org/10.1021/ic500234ren_US
dc.identifier.citationInorganic Chemistryen_US
dc.identifier.citation53en_US
dc.identifier.citation12en_US
dc.identifier.issn0020-1669
dc.identifier.urihttps://libjncir.jncasr.ac.in/xmlui/10572/2420-
dc.descriptionRestricted Accessen_US
dc.description.abstractHere, we report the synthesis, structural characterizations, and gas storage properties of two new 2-fold interpenetrated 3D frameworks, {[Zn-2(bpdc)(2)(azpy)]center dot 2H(2)O center dot 2DMF}(n) (1) and {[Zn-3(bpdc)(3)(azpy)]center dot 4H2O center dot 2DEF}(n), (2) [bpdc = 4,4'-biphenyldicarboxylate; azpy = 4,4'-azobipyridine], obtained from the same set of organic linkers. Furthermore, 1 has been successfully miniaturized to nanoscale (MOF1N) of spherical morphology to study size dependent adsorption properties through a coordination modulation method. The two different SBUs, dinuclear paddle-wheel {Zn-2(COO)(4)} for 1 and trinuclear {Zn-3(mu(2)-OCO)(2)(COO)(4)}for 2, direct the different network topologies of the frameworks that render different adsorption characteristics into the systems. Both of the frameworks show guest induced structural transformations as supported by PXRD studies. Adsorption studies of 1 and 2 show CO2 selectivity over several other gases (such as ND HD OD and Ar) under identical experimental conditions. Interestingly, MOF1N exhibits significantly higher CO2 storage capacity compared to bulk crystals of 1 and that can be attributed to the smaller diffusion barrier at the nanoscale that is supported by studies of adsorption kinetics in both states. Kinetic measurement based on water vapor adsorption clearly distinguishes between the rate of diffusion of bulk (1) and nanospheres (MOF1N). The respective kinetic rate constant (k, s(-1)) for MOF1N (k = 1.29 X 10(-2) s(-1)) is found to be considerably higher than 1 (k = 7.1 X 10(-3) s(-1)) as obtained from the linear driving force (LDF) model. This is the first account where a new interpenetrated MOF has been scaled down to nanoscale through a coordination modulation method, and their difference in gas uptake properties has been correlated through a higher rate of mass diffusion as obtained from kinetics of adsorption.en_US
dc.description.uri1520-510Xen_US
dc.description.urihttp://dx.doi.org/10.1021/ic500234ren_US
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.rights@American Chemical Society, 2014en_US
dc.subjectInorganic & Nuclear Chemistryen_US
dc.subjectMetal-Organic Frameworksen_US
dc.subjectPorous Coordination Polymeren_US
dc.subjectCrystal-Structureen_US
dc.subjectAir Separationen_US
dc.subjectBuilding Unitsen_US
dc.subjectDrug-Deliveryen_US
dc.subjectSelectivityen_US
dc.subjectSorptionen_US
dc.subjectTemperatureen_US
dc.subjectGasesen_US
dc.titleStoichiometry-Controlled Two Flexible Interpenetrated Frameworks: Higher CO2 Uptake in a Nanoscale Counterpart Supported by Accelerated Adsorption Kineticsen_US
dc.typeArticleen_US
Appears in Collections:Research Articles (Tapas Kumar Maji)

Files in This Item:
File Description SizeFormat 
233.pdf
  Restricted Access
6.93 MBAdobe PDFView/Open Request a copy


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.