Abstract
Boron-doped diamond hollow fiber wool (BDD-HFW) was fabricated as a porous monolithic conductive diamond material. BDD-HFW was obtained by deposition of BDD onto a quartz wool substrate followed by removal of the substrate by chemical etching. Scanning electron microscopy observations confirmed that BDD-HFW consisted of BDD hollow fibers with diameters of several micrometers. The double-layer capacitance of a BDD-HFW electrode was estimated to be ca. 13 Fg−1 from cyclic voltammetry measurements in an aqueous electrolyte.
