Catalyst electrode for production of 2.5-furandicarboxylic acid and method for preparation thereof

Patent metadata

Field	Value
Publication number	US-2025092540-A1
Application number	US-202418413987-A
Country	US
Kind code	A1
Filing date	Jan 16, 2024
Priority date	Sep 14, 2023
Publication date	Mar 20, 2025
Grant date	—

Abstract

A catalyst electrode for production of 2,5-furandicarboxylic acid according to an embodiment of the present invention includes: a first metal substrate; and a second metal hydroxide coating layer located on a surface of the first metal substrate, wherein the first metal substrate includes one or more micro-sized first metal particles on the surface thereof, and the second metal hydroxide coating layer may be located on a surface of the first metal particles.

First claim

What is claimed is:

1 . A catalyst electrode for production of 2,5-furandicarboxylic acid, comprising:
a first metal substrate; and a second metal hydroxide coating layer located on a surface of the first metal substrate, wherein the first metal substrate includes one or more micro-sized first metal particles on the surface thereof, and the second metal hydroxide coating layer is located on a surface of the first metal particles.

2 . The catalyst electrode for production of 2,5-furandicarboxylic acid of claim 1 , wherein
the micro-sized first metal particles are secondary particles formed by agglomerating first metal primary particles with an average particle size (D50) of 5 μm or less,

3 . The catalyst electrode for production of 2,5-furandicarboxylic acid of claim 1 , wherein
the second metal hydroxide is dispersed and located on the surface of the first metal substrate in an island shape.

4 . The catalyst electrode for production of 2,5-furandicarboxylic acid of claim 1 , wherein
the second metal hydroxide is located on 5% to 20% of a surface area of the first metal substrate.

5 . The catalyst electrode for production of 2,5-furandicarboxylic acid of claim 1 , wherein
the second metal hydroxide has an average thickness in a range of 0.1 μm to 1 μm.

6 . The catalyst electrode for production of 2,5-furandicarboxylic acid of claim 1 , wherein
the first metal substrate includes one or more types selected from a nickel foam and a nickel foil.

7 . The catalyst electrode for production of 2,5-furandicarboxylic acid of claim 1 , wherein
the second metal hydroxide coating layer is a copper hydroxide coating layer.

8 . A method for preparation of a catalyst electrode for production of 2,5-furandicarboxylic acid, comprising:
growing micro-sized first metal particles on a surface of a first metal specimen; and forming a second metal hydroxide layer on the surface of the first metal specimen on which the micro-sized first metal particles are grown, wherein the first metal and the second metal are different transition metals.

9 . The method for preparation of a catalyst electrode for production of 2,5-furandicarboxylic acid of claim 8 , wherein
in the growing of the micro-sized first metal particles on the surface of the first metal specimen, electrodeposition is performed in a constant current method by immersing the first metal specimen in a first metal salt solution.

10 . The method for preparation of a catalyst electrode for production of 2,5-furandicarboxylic acid of claim 8 , wherein
in the growing of the micro-sized first metal particles on the surface of the first metal specimen, secondary particles formed by agglomerating first metal primary particles with an average particle size (D50) of 5 μm or less are grown.

11 . The method for preparation of a catalyst electrode for production of 2,5-furandicarboxylic acid of claim 8 , wherein
in the forming of the second metal hydroxide layer on the surface of the first metal specimen on which the micro-sized first metal particles are grown, electrodeposition is performed by immersing the first metal specimen on which the micro-sized first metal particles are grown in an alkaline solution in which a second metal salt is dissolved.

12 . The method for preparation of a catalyst electrode for production of 2,5-furandicarboxylic acid of claim 8 , wherein
in the forming of the second metal hydroxide layer on the surface of the first metal specimen on which the micro-sized first metal particles are grown, one or more second metal hydroxide islands are formed on the surface of the first metal specimen.

13 . The method for preparation of a catalyst electrode for production of 2,5-furandicarboxylic acid of claim 8 , wherein
in the forming of the second metal hydroxide layer on the surface of the first metal specimen on which the micro-sized first metal particles are grown, a second metal hydroxide coating layer is formed on an area in a range of 5% to 20% of the surface of the first metal specimen.

14 . The method for preparation of a catalyst electrode for production of 2,5-furandicarboxylic acid of claim 8 , wherein
in the forming of the second metal hydroxide layer on the surface of the first metal specimen on which the micro-sized first metal particles are grown, a second metal hydroxide coating layer having an average thickness in the range of 0.1 μm to 1 μm is formed.

15 . The method for preparation of a catalyst electrode for production of 2,5-furandicarboxylic acid of claim 8 , wherein
the first metal and the second metal are one or more selected from the group consisting of nickel (Ni), copper (Cu), vanadium (V), cobalt (Co), molybdenum (Mo), and tungsten (W).

16 . The method for preparation of a catalyst electrode for production of 2,5-furandicarboxylic acid of claim 15 , wherein
the first metal includes nickel (Ni).

17 . The method for preparation of a catalyst electrode for production of 2,5-furandicarboxylic acid of claim 15 , wherein
the second metal includes copper (Cu).

18 . A process for producing 2,5-furandicarboxylic acid with high purity, through a process using a catalyst that minimizes side reactions due to fructose by injecting a crude HMF solution containing residual fructose into an electrochemical reactor including a catalyst electrode,
wherein the catalyst electrode of claim 1 is applied as the catalyst.

19 . The process for producing 2,5-furandicarboxylic acid of claim 18 , wherein
high-purity 2,5-furandicarboxylic acid is produced by applying a potential in a range of 1.30 V RHE to 1.70 V RHE to the catalyst electrode.

Assignees

• Korea Inst Sci & Tech

Inventors

• Lee Dong Ki
• Lee Ung
• Oh Hyung-Suk
• Min Byoung Koun
• Won Dahye
• Koh Jai Hyun
• Lee Woong Hee
• Woo Jongin
• Moon Byeong Cheul

Classifications

• B01J37/0234

  Impregnation and coating simultaneously · CPC title

• B01J23/755

  Nickel · CPC title

• B01J23/72

  Copper · CPC title

• C07D307/68

  Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen · CPC title

• C25B3/07

  Oxygen containing compounds · CPC title