Title:
ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2020/059783
Kind Code:
A1
Abstract:
[Problem] To provide an electrode that can be produced inexpensively without using a platinum group element, and that can exhibit approximately the same catalytic activity (catalytic action) as the electrode including a platinum group element. [Solution] This electrode 10 is an alloy-metal transition metal thin sheet electrode of a porous structure in which austenitic stainless steel, a ferroalloy, and Cu selected so that the combined work function approximates the work function of a platinum group element are used as raw materials. An alloy-metal transition metal fine powder mixture obtained by uniformly mixing and dispersing a stainless steel alloy fine powder, a ferroalloy fine powder, and a Cu metal fine powder is compressed into the form of a thin plate of prescribed area, and subsequently baked to form a large number of fine channels. With the electrode 10, the weight ratio of the stainless steel alloy fine powder, the weight ratio of the ferroalloy fine powder, and the weight ratio of the Cu metal fine powder with respect to the total weight of the alloy-metal transition metal fine powder mixture are determined so that the combined work function of the of the work functions of the stainless steel alloy fine powder, the ferroalloy fine powder, and the Cu metal fine powder approximates the work function of a platinum group element.
Inventors:
OKUYAMA MASAMI (JP)
SUZUKI KENJI (JP)
SUZUKI KENJI (JP)
Application Number:
PCT/JP2019/036710
Publication Date:
March 26, 2020
Filing Date:
September 19, 2019
Export Citation:
Assignee:
GRAVITON CO LTD (JP)
International Classes:
H01M4/90; B01J23/26; B01J23/72; B01J23/745; B01J23/755; B01J35/04; B22F1/00; B22F3/10; B22F5/00; C22C1/08; C22C19/03; C22C30/02; C22C33/02; H01M4/86; H01M4/88; C25B9/00; C25B11/03; C25B11/06; H01M8/10
Foreign References:
| JP2017098004A | 2017-06-01 | |||
| JP2017095746A | 2017-06-01 | |||
| JPS5724633B2 | 1982-05-25 |
Attorney, Agent or Firm:
KOBAYASHI YOSHITAKA (JP)
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