| abstract |
Provided are a boron-doped nanodiamond having a large specific surface area and high electrical conductivity, an electrode containing the boron-doped nanodiamond, and a sensor or an electricity storage device provided with the electrode. The boron-doped nanodiamond of the present invention has a specific surface area of 110 m<sup>2</sup>/g or greater and electrical conductivity at 20°C of 5.0 × 10<sup>-3</sup>S/cm or greater. The boron-doped nanodiamond preferably has a median diameter of 200 nm or smaller. Additionally, the electrode of the present invention contains the boron-doped nanodiamond. |