ELECTROLYSIS ELECTRODE AND ELECTROLYSIS TANK

Title:

ELECTROLYSIS ELECTRODE AND ELECTROLYSIS TANK

Document Type and Number:

WIPO Patent Application WO/2023/249011

Kind Code:

A1

Abstract:

This electrolysis electrode comprises a conductive base material and a catalyst layer disposed on a surface of the conductive base material, and satisfies at least one of conditions (I) and (II):　(I) The catalyst layer contains ruthenium elements and iridium elements, and has a crystallite size of 50-100Å as calculated from a peak observed in a range of 2θ=27° to 28.5° in an XRD spectrum obtained by subjecting the catalyst layer to X-ray diffraction measurement.　(II) The catalyst layer contains (i) ruthenium elements, (ii) iridium elements, and (iii) at least one type of metal elements M selected from the group consisting of W, Zn, Mn, Cu, Co, V, Ga, Ta, Ni, Fe, Mo, Nb, and Zr. In the catalyst layer, the mol ratio (ruthenium element / iridium element) of the ruthenium elements and the iridium elements is at least 1.4. In the catalyst layer, the mol ratio (metal element M / ruthenium element) of the metal elements M and the ruthenium elements is 0.06-3.5.

Inventors:

FURUKAWA SEIICHI (JP)
MIYASAKA TOYOMITSU (JP)
FUNAKAWA AKIYASU (JP)
YAMASHITA TAKUYA (JP)

Application Number:

PCT/JP2023/022751

Publication Date:

December 28, 2023

Filing Date:

June 20, 2023

Export Citation:

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Assignee:

ASAHI CHEMICAL IND (JP)

International Classes:

C25B11/081; B01J23/60; B01J23/648; B01J23/89; C25B1/46; C25B9/00; C25B11/052

Domestic Patent References:

WO2018097069A1

2018-05-31

Foreign References:

JP2013543933A	2013-12-09
JP2012508326A	2012-04-05
JP2003166093A	2003-06-13
JP2008050675A	2008-03-06
CN102302932A	2012-01-04

Attorney, Agent or Firm:

INABA, Yoshiyuki et al. (JP)

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