Metal-plated carbon material and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-2020308705-A1
Application number	US-202016828413-A
Country	US
Kind code	A1
Filing date	Mar 24, 2020
Priority date	Mar 26, 2019
Publication date	Oct 1, 2020
Grant date	—

Abstract

A metal-plated carbon material includes: a carbon material; and a metal layer covering a surface of the carbon material, in which, in the metal layer, crystal grains forming the metal layer have an average crystal grain size of 110 nm or less. A method of manufacturing a metal-plated carbon material, includes: a metal complex fixation step of immersing a carbon material in a supercritical fluid or subcritical fluid containing an organometallic complex of a first metal; and a first energization deposition step of energizing the metal-complex-fixed carbon material in an electroless plating solution containing a second metal.

First claim

What is claimed is:

1 . A metal-plated carbon material comprising:
a carbon material; and a metal layer covering a surface of the carbon material, wherein in the metal layer, crystal grains forming the metal layer have an average crystal grain size of 110 nm or less.

2 . The metal-plated carbon material according to claim 1 , wherein
the metal layer is made from one or more metals selected from the group consisting of palladium, copper, nickel, cobalt, gold, silver, and platinum.

3 . A method of manufacturing a metal-plated carbon material, comprising:
a metal complex fixation step of immersing a carbon material in a supercritical fluid or subcritical fluid containing an organometallic complex of a first metal to form a metal-complex-fixed carbon material in which the organometallic complex is fixed to a surface of the carbon material; and a first energization deposition step of energizing the metal-complex-fixed carbon material in an electroless plating solution containing a second metal to decompose the organometallic complex of the first metal and deposit the second metal on the surface of the carbon material.

4 . A method of manufacturing a metal-plated carbon material, comprising:
a metal complex fixation step of immersing a carbon material in a supercritical fluid or subcritical fluid containing an organometallic complex of a first metal to form a metal-complex-fixed carbon material in which the organometallic complex is fixed to a surface of the carbon material; and a second energization deposition step of energizing the metal-complex-fixed carbon material in a conductive aqueous solution having conductivity of 100 μS/cm or more to decompose the organometallic complex of the first metal and deposit the first metal on the surface of the carbon material.

5 . The method according to claim 3 , wherein
the first metal is made from one or more metals selected from the group consisting of palladium, copper, nickel, cobalt, gold, silver, and platinum.

6 . The method according to claim 3 , wherein
the second metal is made from one or more metals selected from the group consisting of palladium, copper, nickel, cobalt, gold, silver, and platinum.

7 . The method according to claim 3 , wherein
current density of energization in the first energization deposition step or the second energization deposition step is 0.01 A/cm 2 or less.

Assignees

• Yazaki Corp

Inventors

• Handa Yutaka
• Kondo Hiroki
• Hongo Satoko
• Yoshikawa Yusuke

Classifications

• B32B2311/04

  Gold · CPC title

• B32B15/04

  comprising metal as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a bituminous or tarry layer B32B11/08; next to a water-setting substance layer B32B13/06; next to a glass layer B32B17/061; next to a cellulosic plastic layer B32B23/042)} · CPC title

• B32B2311/06

  Platinum · CPC title

• Y10T428/12861

  Group VIII or IB metal-base component · CPC title

• C23C18/1671

  Electric field · CPC title