title: Porous boron-doped diamond/carbon nanotube electrodes.
abstract: Nanostructuring boron-doped diamond (BDD) films increases their sensitivity and performance when used as electrodes in electrochemical environments. We have developed a method to produce such nanostructured, porous electrodes by depositing BDD thin film onto a densely packed "forest" of vertically aligned multiwalled carbon nanotubes (CNTs). The CNTs had previously been exposed to a suspension of nanodiamond in methanol causing them to clump together into "teepee" or "honeycomb" structures. These nanostructured CNT/BDD composite electrodes have been extensively characterized by scanning electron microscopy, Raman spectroscopy, cyclic voltammetry, and electrochemical impedance spectroscopy. Not only do these electrodes possess the excellent, well-known characteristics associated with BDD (large potential window, chemical inertness, low background levels), but also they have electroactive areas and double-layer capacitance values ∼450 times greater than those for the equivalent flat BDD electrodes.
authors.affiliation: School of Chemistry, University of Bristol , Bristol BS8 1TS, United Kingdom.
authors.forename: H
authors.initials: H
authors.lastname: Zanin
authors.forename: P W
authors.initials: PW
authors.lastname: May
authors.forename: D J
authors.initials: DJ
authors.lastname: Fermin
authors.forename: D
authors.initials: D
authors.lastname: Plana
authors.forename: S M C
authors.initials: SM
authors.lastname: Vieira
authors.forename: W I
authors.initials: WI
authors.lastname: Milne
authors.forename: E J
authors.initials: EJ
authors.lastname: Corat