Abstract
A new and simple electrochemical (corrosion) method for recess creation for the fabrication of metal and metal-metal oxide microelectrodes has been developed. Controlled recess was created in low melting point alloy (LMA)-filled micropipettes using slightly acidic 1-3M ZnCl2 as the electro-corrosion solution. The current was applied from a 3V DC source. The recess length in the LMA-filled micropipette can be manipulated as needed for a specific microelectrode by varying the electro-corrosion time. The present method is expected to make microelectrode fabrication a less tedious process. Dissolved oxygen, oxidation-reduction potential and pH microelectrodes have been made using the present method and the microelectrode characteristics were found to be in conformity with those reported by other researchers.
Original language | English (US) |
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Pages (from-to) | 4428-4432 |
Number of pages | 5 |
Journal | Water Research |
Volume | 36 |
Issue number | 17 |
DOIs | |
State | Published - Oct 2002 |
Keywords
- Electro-corrosion
- Low melting point alloy
- Microelectrode
- Recess creation
ASJC Scopus subject areas
- Ecological Modeling
- Water Science and Technology
- Waste Management and Disposal
- Pollution