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US 2026/0209967 A1Published application
Laminate, and electrode for electrolysis
AssigneesResonac Corporation, Kurita Seisakusho Co., Ltd
InventorsKatsuaki TO, Shinya OGURO, Yohsuke FUKUCHI, Hiroshi KOBAYASHI, Masahiko SUGIHARA, Yoji YAMADA
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Abstract
There is provided a laminate having a base formed of nickel or a nickel alloy and a hard carbon coating film tightly adhering to the base and difficult to be peeled off. The laminate includes: a base (100) formed of nickel or a nickel alloy; an intermediate layer (200) formed on the base (100); and a hard carbon coating film (300) formed on the intermediate layer (200), in which the intermediate layer (200) contains nickel nitride.
Claims20
1:
- A laminate comprising:
- a base formed of nickel or a nickel alloy;
- an intermediate layer formed on the base;
- and
- a hard carbon coating film formed on the intermediate layer, wherein
- the intermediate layer contains nickel nitride.
3 more elements
2:
- The laminate according to claim 1, wherein the nickel alloy is an alloy containing the nickel in a proportion of 50% by mass or more.
3:
- The laminate according to claim 1, wherein the nickel nitride is at least one of Ni4N and Ni3N.
4:
- The laminate according to claim 1, wherein the hard carbon coating film is formed of diamond-like carbon.
5:
- A method for producing a laminate,
- the laminate being the laminate according to claim 1,
- the method comprising:
- an intermediate layer forming step of forming the intermediate layer by nitriding nickel of a surface layer part of the base using nitrogen gas plasma.
1 more element
6:
- The method for producing a laminate according to claim 5, wherein the intermediate layer forming step is a step of repeating applying a high frequency pulse from a high frequency power supply for plasma generation and applying a negative high voltage pulse from a power supply for high voltage pulse generation, to the base in a nitrogen gas atmosphere.
7:
- An electrode for electrolysis comprising:
- the laminate according to claim 1.
8:
- The electrode for electrolysis according to claim 7, the electrode is used for synthesizing a fluorine-containing compound by electrolyzing a molten salt containing a fluoride ion.
9:
- The electrode for electrolysis according to claim 7, the electrode is used for synthesizing fluorine gas or nitrogen trifluoride by electrolyzing a molten salt containing hydrogen fluoride.
10:
- A method for producing an electrode for electrolysis,
- the electrode for electrolysis being the electrode for electrolysis according to claim 7,
- the method comprising:
- an intermediate layer forming step of forming the intermediate layer by nitriding nickel of a surface layer part of the base using nitrogen gas plasma.
1 more element
11:
- An electrolyzer, comprising:
- the electrode for electrolysis according to claim 7.
12:
- A gas production method for producing fluorine gas or nitrogen trifluoride comprising:
- synthesizing fluorine gas or nitrogen trifluoride by electrolyzing a molten salt containing hydrogen fluoride using the electrode for electrolysis according to claim 7.
13:
- The laminate according to claim 2, wherein the nickel nitride is at least one of Ni4N and Ni3N.
14:
- The laminate according to claim 2, wherein the hard carbon coating film is formed of diamond-like carbon.
15:
- The laminate according to claim 3, wherein the hard carbon coating film is formed of diamond-like carbon.
16:
- A method for producing a laminate,
- the laminate being the laminate according to claim 2,
- the method comprising:
- an intermediate layer forming step of forming the intermediate layer by nitriding nickel of a surface layer part of the base using nitrogen gas plasma.
1 more element
17:
- A method for producing a laminate,
- the laminate being the laminate according to claim 3,
- the method comprising:
- an intermediate layer forming step of forming the intermediate layer by nitriding nickel of a surface layer part of the base using nitrogen gas plasma.
1 more element
18:
- A method for producing a laminate,
- the laminate being the laminate according to claim 4,
- the method comprising:
- an intermediate layer forming step of forming the intermediate layer by nitriding nickel of a surface layer part of the base using nitrogen gas plasma.
1 more element
19:
- An electrode for electrolysis comprising:
- the laminate according to claim 2.
20:
- An electrode for electrolysis comprising:
- the laminate according to claim 3.