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dc.contributor.authorHirai, K.-
dc.contributor.authorSumida, K.-
dc.contributor.authorMeilikhov, M.-
dc.contributor.authorLouvain, N.-
dc.contributor.authorNakahama, M.-
dc.contributor.authorUehara, H.-
dc.contributor.authorKitagawa, S.-
dc.contributor.authorFurukawa, S.-
dc.identifier.citationJournal of Materials Chemistry C, 2014; 2(17):3336-3344-
dc.description.abstractThe hybridization of porous coordination polymers (PCPs) with electronic devices is a powerful strategy for developing systems that are suitable for advanced applications, such as chemical sensing. The quartz crystal microbalance (QCM) technique is one that allows minute mass changes to be resolved with a high temporal resolution, and the growth of PCP crystals that provide selective adsorption properties on a QCM substrate can facilitate the rapid detection of certain molecules from a gas or vapour mixture. Herein, we demonstrate the immobilization of the flexible PCP Zn(NO₂-ip)(bpy) (Zn-CID-5; NO₂-ip²⁻ = 5-nitroisophthalate, bpy = 4,4′-bipyridine) on QCM substrates and investigate the adsorptive properties of the fabricated systems. Notably, the crystal orientation could be controlled by the anchoring of chemical functionalities on the substrate surface, or by the addition of coordination modulators (e.g. 4-phenylpyridine) at the time of growth of the PCP crystals on the substrates. Here, the crystal orientation plays a significant role in determining the detection kinetics of organic vapours (e.g. methanol), and the [010]-oriented case which displays the fastest adsorption kinetics among the samples tested is studied under mixed component (methanol–hexane) conditions to demonstrate its response profile. In all, the results demonstrate the potential utility of PCP/QCM hybrid systems in sensor applications, and also serve to highlight the importance of optimizing the physical orientation of crystal growth in such systems to maximize the overall performance of the system.-
dc.description.statementofresponsibilityKenji Hirai, Kenji Sumida, Mikhail Meilikhov, Nicolas Louvain, Masashi Nakahama, Hiromitsu Uehara, Susumu Kitagawa and Shuhei Furukawa-
dc.publisherRoyal Society of Chemistry-
dc.rightsThis journal is © The Royal Society of Chemistry 2014-
dc.titleImpact of crystal orientation on the adsorption kinetics of a porous coordination polymer-quartz crystal microbalance hybrid sensor-
dc.typeJournal article-
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