Removal and evaluation of non-diamond carbon on boron-doped diamond electrodes
| Autor: | Seth A. Hara, Taylor R. Moen, Kevin E. Bennet, Kendall H. Lee, Jonathan R. Tomshine |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Fabrication Hydrogen chemistry.chemical_element Diamond Nanotechnology 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Electrochemistry 03 medical and health sciences Microelectrode 0302 clinical medicine chemistry Electrode engineering Cyclic voltammetry 0210 nano-technology Carbon 030217 neurology & neurosurgery |
| Zdroj: | MeMeA |
| Popis: | Boron-doped diamond electrodes possess many qualities that make them promising candidates for chronic in vivo neurochemical sensors. The fabrication process for boron-doped diamond films produces additional forms of non-diamond carbon that can confound electrochemical performance and neurochemical detection. Various removal treatments have been implemented for other applications of boron-doped diamond, but they have not been very well evaluated or compared. In this work, we present the use of electrode double-layer capacitance and quinone surface coverage to evaluate the effectiveness of three different non-diamond carbon removal treatments on boron-doped diamond microelectrodes designed for neurochemical detection. The results indicate that sulfuric acid cycling post-deposition and incorporation of an atomic hydrogen cool-down step into the deposition process reduce the amount of surface non-diamond carbon contaminating boron-doped diamond electrodes. |
| Databáze: | OpenAIRE |
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