Title:
PROCESS FOR PRODUCING GAS, PROCESS FOR PRODUCING ACIDIC WATER AND ALKALINE WATER, AND APPARATUS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/082801
Kind Code:
A1
Abstract:
[PROBLEMS] This invention provides a process for producing gas, which is low in electrode cost and can cause a photoelectric chemical reaction at a low applied voltage, a process for producing acidic water and alkaline water, and an apparatus for producing the same. [MEANS FOR SOLVING PROBLEMS] An anode and a cathode, which are immersed in an aqueous solution and are electrically connected to each other, are provided. The aqueous solution is subjected to a redox reaction to produce hydrogen gas from the cathode side, or to produce acidic water from the anode while producing alkaline water from the cathode. At least one of the anode and the cathode is a nitride semiconductor photocatalyst represented by AlyGa1-x-yInxN, wherein x-y ≤ 0.45, 0 ≤ x ≤ 1, and 0 ≤ y ≤ 1, which applies a voltage across the anode and the cathode.
Inventors:
OHKAWA KAZUHIRO (JP)
FUJII KATSUSI (JP)
FUJII KATSUSI (JP)
Application Number:
PCT/JP2006/301513
Publication Date:
August 10, 2006
Filing Date:
January 31, 2006
Export Citation:
Assignee:
JAPAN SCIENCE & TECH AGENCY (JP)
ADMINISTRATIVE ORGANIZATION TO (JP)
OHKAWA KAZUHIRO (JP)
FUJII KATSUSI (JP)
ADMINISTRATIVE ORGANIZATION TO (JP)
OHKAWA KAZUHIRO (JP)
FUJII KATSUSI (JP)
International Classes:
C25B11/06; B01J27/24; B01J35/02; C02F1/46; C25B1/04
Foreign References:
| JP2003024764A | 2003-01-28 | |||
| JP2002356301A | 2002-12-13 | |||
| JP2003047962A | 2003-02-18 | |||
| JP2004315942A | 2004-11-11 |
Attorney, Agent or Firm:
Akao, Kenichiro (Kyobashi-Nichiei Biru 3-4 Kyobashi 3-chome, Chuo-k, Tokyo 31, JP)
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