Oxygen generating electrode and oxygen generator

Patent metadata

Field	Value
Publication number	US-2019301030-A1
Application number	US-201916445536-A
Country	US
Kind code	A1
Filing date	Jun 19, 2019
Priority date	Jan 6, 2017
Publication date	Oct 3, 2019
Grant date	—

Abstract

An oxygen generating electrode includes: an oxide film having a perovskite structure; an organic film over the oxide film; and a conductive film electrically coupled to the organic film, wherein the organic film contains an amino acid having a side chain of negative polarity.

First claim

What is claimed is:

1 . An oxygen generating electrode comprising:
an oxide film having a perovskite structure; an organic film over the oxide film; and a conductive film electrically coupled to the organic film, wherein the organic film contains an amino acid having a side chain of negative polarity.

2 . The oxygen generating electrode according to claim 1 , wherein the amino acid is L-glutamic acid.

3 . The oxygen generating electrode according to claim 1 , wherein the conductive film is a porous Au film.

4 . The oxygen generating electrode according to claim 1 , wherein the oxide film contains an oxide represented by a chemical formula ABO 3-δ wherein A is a metal element having a valence of 3 or 4, and B is Ni.

5 . The oxygen generating electrode according to claim 4 , wherein A is Pr, La, Sm, Nd, Gd, Eu or any combination of Pr, La, Sm, Nd, Gd and Eu.

6 . The oxygen generating electrode according to claim 4 , wherein 6 has a value greater than 0 and less than 0.5.

7 . The oxygen generating electrode according to claim 4 , wherein the oxide film contains PrNiO 3 .

8 . An oxygen generator comprising:
an aqueous electrolyte solution; an oxygen generating electrode in the aqueous electrolyte solution; a reference electrode and a counter electrode in the aqueous electrolyte solution; and a potentiostat connected to the oxygen generating electrode, the reference electrode and the counter electrode, wherein the oxygen generating electrode includes: an oxide film having a perovskite structure; an organic film which is provided over the oxide film and contains an amino acid having a side chain of negative polarity; and a conductive film electrically coupled to the organic film.

9 . The oxygen generator according to claim 8 , wherein the amino acid is L-glutamic acid.

10 . The oxygen generator according to claim 8 , wherein the conductive film is a porous Au film.

11 . The oxygen generator according to claim 8 ,
wherein the oxide film contains an oxide represented by a chemical formula ABO 3-δ wherein A is a metal element having a valence of 3 or 4, and B is Ni.

12 . The oxygen generator according to claim 11 , wherein A is Pr, La, Sm, Nd, Gd, Eu or any combination of Pr, La, Sm, Nd, Gd and Eu.

13 . The oxygen generator according to claim 11 , wherein 6 has a value greater than 0 and less than 0.5.

14 . The oxygen generator according to claim 11 , wherein the oxide film contains PrNiO 3 .

Assignees

• Fujitsu Ltd

Inventors

• Baniecki John David
• Aso Hiroyuki
• Imanaka Yoshihiko

Classifications

• C23C28/345

  with at least one oxide layer · CPC title

• C23C28/32

  including at least one pure metallic layer · CPC title

• C23C28/30

  Coatings combining at least one metallic layer and at least one inorganic non-metallic layer · CPC title

• C23C28/00

  Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D · CPC title

• C07C229/24

  having more than one carboxyl group bound to the carbon skeleton, e.g. aspartic acid · CPC title