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| 1 | Jack Zhong | -- | 173 | 2026-09-24 05:55:02 | | | |
| 2 | Jack Zhong | -8 word(s) | 165 | 2026-09-24 05:57:04 | | |
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A glassy carbon electrode is a working electrode made from a disordered, gas-impermeable carbon prepared by controlled pyrolysis of a polymer precursor; its wide potential window, low background current and chemical inertness make it the standard substrate for voltammetry. What the surface actually presents to the solution is not elemental carbon alone: oxygen functionalities and polishing debris remain after preparation, and X-ray photoelectron spectroscopy shows how much the electrochemical response depends on how the surface was finished [1]. Deliberate modification builds on that, and grafting a redox-active layer onto the polished surface was shown early to improve the determination of catecholamines [2]. Electrochemical oxidation of an arylamine in solution attaches the layer covalently through a carbon-nitrogen bond [3]. Carbon nanotubes, functionalised before deposition, add conductivity and surface area at the same time [4]. Combining a carbon nanotube with oxide nanoparticles and an organic mediator gives a composite film whose response exceeds that of any single component [5].
References
- Ilangovan, G.; Chandrasekara Pillai, K. Electrochemical and XPS Characterization of Glassy Carbon Electrode Surface Effects on the Preparation of a Monomeric Molybdate(VI)-Modified Electrode. Langmuir 1997, 13, 566-575. [CrossRef]
- IMAI, H.; YOSHIDA, H.; MASUJIMA, T.; OWA, M. Effect of modification of glassy carbon electrode on electrochemical determination of catecholamines. BUNSEKI KAGAKU 1981, 30, 561-565. [CrossRef]
- Taner, B.; Deveci, P.; Üstündaǧ, Z.; Keskin, S.; Özcan, E.; Osman Solak, A. Modification of glassy carbon electrode by the electrochemical oxidation of 3‐aminophenylcalix[4]pyrrole in nonaqueous media. Surface and Interface Analysis 2012, 44, 185-191. [CrossRef]
- Shahrokhian, S.; Hafezi Kahnamoui, M.; Salimian, R. Surface modification of glassy carbon electrode with the functionalized carbon nanotube for ultrasensitive electrochemical detection of risperidone. Journal of the Iranian Chemical Society 2018, 15, 1485-1494. [CrossRef]
- Sakineh Esfandiari Baghbamidi. Surface Modification of Glassy Carbon Electrode Using Hematoxylin and MWCNTs/Fe3O4/TiO2 Nanocomposite; a Sensitive Electrochemical Technique for Detection of Methyldopa in the Presence of Folic Acid. Russian Journal of Electrochemistry 2022, 58, 451-463. [CrossRef]
