Granular diamond and diamond electrode using the same

摘要

This invention provides a granular diamond(1) consisting of: a columnar base(2) formed by Nb, Ti or W and having a length(L) in a longitudinal direction of not more than 30 mm and a maximum length(R) in a direction perpendicular to the longitudinal direction of not more than 15 mm; and conductive diamond(3) coating not less than 30% of a surface of the base(2), or a granular diamond including: a spherical base formed by Nb, Ti or W and having a diameter of not more than 15mm, and conductive diamond coating not less than 50% of a surface of the base, and a diamond electrode having a great surface area and a high conductivity by using such many granular diamonds.