Title:
ELECTROCHEMICAL ELEMENT
Document Type and Number:
Japanese Patent JP3093612
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To decompose nitrogen oxides with high efficiency at low temp. and low current density even in a high oxygen-concn. atmosphere such as 10% oxygen concn.
SOLUTION: This element consists of an oxygen ion conductor 4 and plus and minus electrodes 2, 3, and at least the minus electrode 2 of the two electrodes 2, 3 consists of laminated layers of alkaline earth oxides 1 or of a mixture of these. Nitrogen oxides are electrochemically decomposed by exposing at least the minus electrode 2 to a gas containing nitrogen oxides and oxygen at the operational temp. and giving electric potential to the minus electrode.
Inventors:
Akio Fukuda
Akira Nagai
Kenzo Koji
Takahiro Umeda
Akira Nagai
Kenzo Koji
Takahiro Umeda
Application Number:
JP19762395A
Publication Date:
October 03, 2000
Filing Date:
August 02, 1995
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
Institute for Global Environmental Technology
Institute for Global Environmental Technology
International Classes:
B01D53/34; B01D53/32; B01D53/56; B01D53/74; C25B1/02; (IPC1-7): B01D53/56; B01D53/32; B01D53/34; B01D53/74; C25B1/02
Domestic Patent References:
| JP7185261A | ||||
| JP7275714A |
Attorney, Agent or Firm:
Masaru Ishihara