METHOD FOR SURFACE-TREATING BORON-DOPED DIAMOND ELECTRODE

摘要

A boron-doped diamond electrode capable of electrochemically detecting various saccharins without using enzymes by performing surface treatment through a simple process, and a method for manufacturing the same are provided. A method for surface-treating a boron-doped diamond electrode comprises: primarily treating a surface of a boron-doped diamond electrode with oxygen plasma; and secondly treating the primarily treated surface of the boron-doped diamond electrode with hydrogen flame. The hydrogen flame treatment process is conducted using a hydrogen torch for 5 to 10 minutes. The boron-doped diamond electrode has hydrogen-containing end groups on the surface thereof as a whole since the boron-doped diamond electrode is manufactured by chemical vapor deposition. The electrode primarily surface-treated with oxygen plasma has oxygen-containing end groups on a surface thereof as a whole. A boron-doped diamond electrode is surface-treated by the method such that hydrogen-containing end groups and oxygen-containing end groups coexist on the surface thereof, wherein the hydrogen-containing end groups exist at a ratio of 10 to 30% of the entire surface of the boron-doped diamond electrode.