Surface renewable iridium oxide-glass or ceramic composite hydrogen ion electrode
US8486238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2010 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Jul 21, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2218/322
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein is a surface renewable iridium oxide-glass or ceramic composite hydrogen ion electrode and, more particularly, a surface renewable iridium oxide-glass or ceramic composite hydrogen ion electrode, which has a long life due to its excellent physical strength, pH dependency approximate to a theoretical value (59 mV/pH unit), and high surface renewability, and a method of manufacturing the same. The iridium oxide composite hydrogen ion electrode according to the present invention is effective in that, when the electrode is contaminated or inactivated, the surface of the electrode can be regenerated through a simple grinding process because the electrode has high surface renewability, unlike conventional electrodes. The iridium oxide composite electrode according to the present invention can be usefully used in a water-quality monitoring system for monitoring the hydrogen ion concentration of a solution for a long period, an online pH measurement system, and pH measurement for samples, which causes serious contamination of the surface of a sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.