Preparation of ultrathin defect-free graphene sheets from graphite via fluidic delamination for solid-contact ion-to-electron transducers in potentiometric sensors

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dc.contributor.authorPark, Hong Junko
dc.contributor.authorJeong, Jae-Minko
dc.contributor.authorYoon, Jo Heeko
dc.contributor.authorSon, Seon Gyuko
dc.contributor.authorKim, Yeong Kyunko
dc.contributor.authorKim, Do Hyunko
dc.contributor.authorLee, Kyoung G.ko
dc.contributor.authorChoi, Bong Gillko
dc.date.accessioned2019-12-23T08:20:04Z-
dc.date.available2019-12-23T08:20:04Z-
dc.date.created2019-12-06-
dc.date.created2019-12-06-
dc.date.created2019-12-06-
dc.date.created2019-12-06-
dc.date.issued2020-02-
dc.identifier.citationJOURNAL OF COLLOID AND INTERFACE SCIENCE, v.560, pp.817 - 824-
dc.identifier.issn0021-9797-
dc.identifier.urihttp://hdl.handle.net/10203/270314-
dc.description.abstractIn this study, ultrathin and defect-free graphene (Gr) sheets were prepared through a fluid dynamics–induced shear exfoliation method using graphite. The high hydrophobicity and surface area of Gr make it attractive as a solid-contact ion-to-electron transducer for potentiometric K+ sensors, in which the electrodes are fabricated through a screen-printing process. The electrochemical characterization demonstrates that Gr solid contact results in a high double-layer capacitance, potential stability, and strong resistance against water layer, gases, and light. The Gr-based K+ sensors showed a Nernstian slope of 53.53 mV/log[K+] within a linear concentration range of 10−1–10−4 M, a low detection limit of 10−4.28 M, a fast response time of ~8 s, good repeatability, and excellent long-term stability. Moreover, the Gr-based K+ sensors provided accurate ion concentrations in actual samples of human sweat and sports drinks.-
dc.languageEnglish-
dc.publisherACADEMIC PRESS INC ELSEVIER SCIENCE-
dc.titlePreparation of ultrathin defect-free graphene sheets from graphite via fluidic delamination for solid-contact ion-to-electron transducers in potentiometric sensors-
dc.typeArticle-
dc.identifier.wosid000504130200085-
dc.identifier.scopusid2-s2.0-85075421374-
dc.type.rimsART-
dc.citation.volume560-
dc.citation.beginningpage817-
dc.citation.endingpage824-
dc.citation.publicationnameJOURNAL OF COLLOID AND INTERFACE SCIENCE-
dc.identifier.doi10.1016/j.jcis.2019.11.001-
dc.contributor.localauthorKim, Do Hyun-
dc.contributor.nonIdAuthorPark, Hong Jun-
dc.contributor.nonIdAuthorYoon, Jo Hee-
dc.contributor.nonIdAuthorSon, Seon Gyu-
dc.contributor.nonIdAuthorKim, Yeong Kyun-
dc.contributor.nonIdAuthorLee, Kyoung G.-
dc.contributor.nonIdAuthorChoi, Bong Gill-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorIon sensor-
dc.subject.keywordAuthorGraphene-
dc.subject.keywordAuthorPotentiometry-
dc.subject.keywordAuthorSolid contact-
dc.subject.keywordAuthorExfoliation-
dc.subject.keywordPlusSELECTIVE ELECTRODES-
dc.subject.keywordPlusSHEAR EXFOLIATION-
dc.subject.keywordPlusCHALLENGES-
dc.subject.keywordPlusEXERCISE-
dc.subject.keywordPlusOXIDE-
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