Title:
DIAMOND ELECTRODE, METHOD FOR PRODUCING SAME, AND ELECTROLYTIC BATH
Document Type and Number:
WIPO Patent Application WO/2007/060807
Kind Code:
A1
Abstract:
Disclosed is a diamond electrode (1) comprising a conductive silicon substrate (2)
having a plurality of pores (4), and a conductive diamond (3) covering the conductive
silicon substrate (2). Also disclosed is a method for producing such a diamond
electrode. Further disclosed is an electrolytic bath comprising a cation-exchange
membrane, an anode and a cathode respectively arranged in close contact with
either side of the cation-exchange membrane, and collectors respectively arranged
in contact with the anode and the cathode in an electrically feedable manner.
In this electrolytic bath, at least the anode is composed of the diamond electrode
and the collectors are composed of a conductive nonmetal through which the electrolyte
liquid can be permeated. The electrolytic bath is low in the production cost,
free from problems of warping and enables to obtain a high electrolysis efficiency.
Namely, the present invention provides a diamond electrode having long life
wherein separation between a conductive silicon substrate and a conductive diamond
hardly occurs, a method for producing such a diamond electrode, and an electrolytic
bath having high electrolysis efficiency and long life.
Inventors:
YOSHIDA SHIGERU (JP)
YOSHIDA KATSUHITO (JP)
TAKAHASHI TOSHIYA (JP)
IGUCHI TAKAHISA (JP)
HIGUCHI FUMINORI (JP)
YOSHIDA KATSUHITO (JP)
TAKAHASHI TOSHIYA (JP)
IGUCHI TAKAHISA (JP)
HIGUCHI FUMINORI (JP)
Application Number:
PCT/JP2006/321264
Publication Date:
May 31, 2007
Filing Date:
October 25, 2006
Export Citation:
Assignee:
SUMITOMO ELEC HARDMETAL CORP (JP)
YOSHIDA SHIGERU (JP)
YOSHIDA KATSUHITO (JP)
TAKAHASHI TOSHIYA (JP)
IGUCHI TAKAHISA (JP)
HIGUCHI FUMINORI (JP)
YOSHIDA SHIGERU (JP)
YOSHIDA KATSUHITO (JP)
TAKAHASHI TOSHIYA (JP)
IGUCHI TAKAHISA (JP)
HIGUCHI FUMINORI (JP)
International Classes:
C25B11/03; C23C16/27
Foreign References:
| JP2003290767A | 2003-10-14 | |||
| JP2004195346A | 2004-07-15 | |||
| JP2004059342A | 2004-02-26 | |||
| JP2005246279A | 2005-09-15 |
Other References:
FARRELL J. ET AL.: "Anodically Generated Short-Lived Species On Boron-Doped Diamond Film Electrodes", J. ELECTROCHEM. SOC., vol. 152, no. 1, 2005, pages E14 - E17, XP003013405
See also references of EP 1953271A4
See also references of EP 1953271A4
Attorney, Agent or Firm:
FUKAMI, Hisao et al. (Nakanoshima Central Tower 22nd Floor, 2-7, Nakanoshima 2-chome, Kita-k, Osaka-shi Osaka 05, JP)
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