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Two-dimensional MXene nanosheets (types Ti3C2Tx and Ti2CTx) as new ion-to-electron transducers in solid-contact calcium ion-selective electrodes
- Source :
- Microchimica Acta. 186
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- Two kinds of two-dimensional MXene (of type Ti3C2Tx and Ti2CTx) nanosheets are described for use in solid-contact ion-selective electrodes (SC-ISEs) where they act as ion-to-electron transducers. Electrochemical characterizations show that the MXene-coated electrodes possess high double layer capacitance and enable rapid electron transport. This demonstrates the enhanced efficiency of MXene-based solid-contact layers to improve ion-electron transduction. Both Ti3C2Tx- and Ti2CTx-based SC-ISEs exhibited a Nernstian response (26.4 and 24.9 mV/decade, respectively) between 10−1 and 10–5.5 M Ca(II) concentrations with rapid response (
- Subjects :
- Materials science
business.industry
Double-layer capacitance
Potentiometric titration
Nanochemistry
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Electrochemistry
01 natural sciences
Redox
Electron transport chain
0104 chemical sciences
Analytical Chemistry
Ion
Electrode
Optoelectronics
0210 nano-technology
business
Subjects
Details
- ISSN :
- 14365073 and 00263672
- Volume :
- 186
- Database :
- OpenAIRE
- Journal :
- Microchimica Acta
- Accession number :
- edsair.doi...........64e78c347a6f93ded458722c5c9fa385