Super-Nernstian Potentiometric pH Sensor based on the Electrodeposition of Iridium Oxide Nanoparticles
This work reports an investigation into the synthesis and electrodeposition of iridium oxide nanoparticles to fabricate an Au-based super-Nernstian potentiometric pH sensor. Monodisperse ultrafine iridium oxide nanoparticles with a mean particle diameter of 1–2 nm were successfully synthesized by th...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Universitas Indonesia
2018-04-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | http://ijtech.eng.ui.ac.id/article/view/1263 |
| _version_ | 1797969823460753408 |
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| author | Munawar Khalil Ning Liu Robert Lee |
| author_facet | Munawar Khalil Ning Liu Robert Lee |
| author_sort | Munawar Khalil |
| collection | DOAJ |
| description | This work reports an investigation into the synthesis and electrodeposition of iridium oxide nanoparticles to fabricate an Au-based super-Nernstian potentiometric pH sensor. Monodisperse ultrafine iridium oxide nanoparticles with a mean particle diameter of 1–2 nm were successfully synthesized by the facile alkaline hydrolysis method and electrodeposited on the surface of Au substrate using Cyclic Voltammetry (CV). Based on the result, it was observed that the iridium oxide deposited Au substrate had a rough surface morphology. It was also found that the as-prepared sensor exhibited an excellent pH sensitivity and good stability over a long period, with a super-Nernstian response value of -73.7 mV/pH. |
| first_indexed | 2024-04-11T03:07:43Z |
| format | Article |
| id | doaj.art-da109cc0b70b480bb62b6f82ebb8b03e |
| institution | Directory Open Access Journal |
| issn | 2086-9614 2087-2100 |
| language | English |
| last_indexed | 2024-04-11T03:07:43Z |
| publishDate | 2018-04-01 |
| publisher | Universitas Indonesia |
| record_format | Article |
| series | International Journal of Technology |
| spelling | doaj.art-da109cc0b70b480bb62b6f82ebb8b03e2023-01-02T12:44:56ZengUniversitas IndonesiaInternational Journal of Technology2086-96142087-21002018-04-019344645410.14716/ijtech.v9i3.12631263Super-Nernstian Potentiometric pH Sensor based on the Electrodeposition of Iridium Oxide NanoparticlesMunawar Khalil0Ning Liu1Robert Lee2Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Indonesia, Depok, West Java 16424, IndonesiaDepartment of Petroleum Engineering, University of Louisiana at Lafayette, 70504 Louisiana, USA.Petroleum Recovery Research Center, New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, USAThis work reports an investigation into the synthesis and electrodeposition of iridium oxide nanoparticles to fabricate an Au-based super-Nernstian potentiometric pH sensor. Monodisperse ultrafine iridium oxide nanoparticles with a mean particle diameter of 1–2 nm were successfully synthesized by the facile alkaline hydrolysis method and electrodeposited on the surface of Au substrate using Cyclic Voltammetry (CV). Based on the result, it was observed that the iridium oxide deposited Au substrate had a rough surface morphology. It was also found that the as-prepared sensor exhibited an excellent pH sensitivity and good stability over a long period, with a super-Nernstian response value of -73.7 mV/pH.http://ijtech.eng.ui.ac.id/article/view/1263Cyclic voltammetryElectrodepositionIridium oxidepH sensorSuper-Nernstian |
| spellingShingle | Munawar Khalil Ning Liu Robert Lee Super-Nernstian Potentiometric pH Sensor based on the Electrodeposition of Iridium Oxide Nanoparticles International Journal of Technology Cyclic voltammetry Electrodeposition Iridium oxide pH sensor Super-Nernstian |
| title | Super-Nernstian Potentiometric pH Sensor based on the Electrodeposition of Iridium Oxide Nanoparticles |
| title_full | Super-Nernstian Potentiometric pH Sensor based on the Electrodeposition of Iridium Oxide Nanoparticles |
| title_fullStr | Super-Nernstian Potentiometric pH Sensor based on the Electrodeposition of Iridium Oxide Nanoparticles |
| title_full_unstemmed | Super-Nernstian Potentiometric pH Sensor based on the Electrodeposition of Iridium Oxide Nanoparticles |
| title_short | Super-Nernstian Potentiometric pH Sensor based on the Electrodeposition of Iridium Oxide Nanoparticles |
| title_sort | super nernstian potentiometric ph sensor based on the electrodeposition of iridium oxide nanoparticles |
| topic | Cyclic voltammetry Electrodeposition Iridium oxide pH sensor Super-Nernstian |
| url | http://ijtech.eng.ui.ac.id/article/view/1263 |
| work_keys_str_mv | AT munawarkhalil supernernstianpotentiometricphsensorbasedontheelectrodepositionofiridiumoxidenanoparticles AT ningliu supernernstianpotentiometricphsensorbasedontheelectrodepositionofiridiumoxidenanoparticles AT robertlee supernernstianpotentiometricphsensorbasedontheelectrodepositionofiridiumoxidenanoparticles |