Development of tungsten oxide nanoparticle modified carbon fibre cloth as flexible pH sensor

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dc.contributor.authorJamal, Mamun
dc.contributor.authorRazeeb, Kafil M.
dc.contributor.authorShao, Han
dc.contributor.authorIslam, Jahidul
dc.contributor.authorAkhter, Irani
dc.contributor.authorFurukawa, Hidemitsu
dc.contributor.authorKhosla, Ajit
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderUniversity Grant Commission, Bangladeshen
dc.contributor.funderJapan Society for the Promotion of Scienceen
dc.contributor.funderCenter of Innovation Programen
dc.contributor.funderJapan Science and Technology Agencyen
dc.contributor.funderNew Energy and Industrial Technology Development Organization, Japanen
dc.contributor.funderProgram on Open Innovation Platform with Enterprises, Research Institute and Academiaen
dc.date.accessioned2019-11-19T10:12:53Z
dc.date.available2019-11-19T10:12:53Z
dc.date.issued2019-03-15
dc.description.abstractA reagent-less pH sensor based on disposable and low cost carbon fibre cloth (CFC) is demonstrated for the first time, where tungsten oxide nanoparticles were grown directly onto the CFC substrate. For comparison purpose, tungsten oxide nanoparticle modified glassy carbon electrode (GCE) was also fabricated as a pH sensor, where hydrothermally synthesized tungsten oxide nanoparticles were drop casted onto the GCE surface. The corresponding equilibrium potential using tungsten oxide/CFC as a pH sensor was measured using open circuit potential (OCP), and was found to be linear over the pH range of 3–10, with a sensitivity of 41.38 mVpH−1, and response time of 150 s. In the case of tungsten oxide/GCE as a pH sensor, square wave voltammetry (SWV) was used to measure the shifts in peak potential and was found to be linear with a pH range of 3–11, and a sensitivity of 60 mVpH−1 with a potential drift of 2.4–5.0% after 3 hour of continuous use. The advantages of tungsten oxide/CFC and tungsten oxide/GCE as pH sensing electrode have been directly compared with the commercial glass probe based electrode, and validated in real un-buffered samples. Thereby, tungsten oxide nanoparticles with good sensitivity and long term stability could be potentially implemented as a low cost and robust pH sensor in numerous applications for the Internet of Things (IoT).en
dc.description.sponsorshipStrategic Innovation Creation project (SIP)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid4659en
dc.identifier.citationJamal, M., Razeeb, K.M., Shao, H., Islam, J., Akhter, I., Furukawa, H. and Khosla, A., 2019. Development of Tungsten Oxide Nanoparticle Modified Carbon Fibre Cloth as Flexible pH Sensor. Scientific reports, 9(1), (4659). DOI:10.1038/s41598-019-41331-wen
dc.identifier.doi10.1038/s41598-019-41331-wen
dc.identifier.eissn2045-2322
dc.identifier.endpage9en
dc.identifier.issued1en
dc.identifier.journaltitleScientific Reportsen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/9044
dc.identifier.volume9en
dc.language.isoenen
dc.publisherSpringer Natureen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Technology and Innovation Development Award (TIDA)/14/TIDA/2455/IE/SweatSens: Biofouling Mitigated Sweat pH and Glucose Sensing/en
dc.relation.urihttps://www.nature.com/articles/s41598-019-41331-w
dc.rights© The Author(s) 2019en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectInternet of Things (IoT)en
dc.subjectpH sensoren
dc.subjectLow cost carbon fibre cloth (CFC)en
dc.subjectTungsten oxide nanoparticlesen
dc.subjectGlassy carbon electrode (GCE)en
dc.titleDevelopment of tungsten oxide nanoparticle modified carbon fibre cloth as flexible pH sensoren
dc.typeArticle (peer-reviewed)en
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