Carbon supported surface functionalized silver nanoparticles

Patent metadata

Field	Value
Publication number	US-12410328-B2
Application number	US-202217810979-A
Country	US
Kind code	B2
Filing date	Jul 6, 2022
Priority date	Jul 6, 2022
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

Carbon supported surface functionalized silver nanoparticles and a method for preparing the same are disclosed. For example, a composition includes carbon supported surface functionalized silver nanoparticles, The methods include preparing a liquid-containing composition comprising a plurality of silver nanoparticles and adding a carbon structure with the liquid-containing composition to form the carbon supported silver nanoparticles in-situ or mixing a composition comprising a carbon structure, a plurality of silver nanoparticles, and a liquid to grow silver nanoparticles on the carbon structure in-situ.

First claim

What is claimed is:

1. An in-situ method to prepare carbon supported silver nanoparticles, comprising:
preparing a liquid-containing composition comprising a plurality of silver nanoparticles, wherein the plurality of silver nanoparticles is surface functionalized for controlling a particle size of the plurality of silver nanoparticles; and
adding a carbon structure to the liquid-containing composition to form the carbon supported silver nanoparticles in-situ, wherein the carbon supported silver nanoparticles comprise silver nanoparticles formed on a surface of the carbon structure wherein the plurality of silver nanoparticles is surface functionalized using an amine.

2. The method of claim 1 , wherein the preparing comprises:
mixing the plurality of silver nanoparticles, a nitrogen containing moiety, and a liquid.

3. The method of claim 2 , wherein the plurality of silver nanoparticles, the nitrogen containing moiety, and the liquid are stirred until the plurality of silver nanoparticles reaches a particle size distribution.

4. The method of claim 2 , wherein the plurality of silver nanoparticles comprises silver acetate.

5. An in-situ method to prepare carbon supported silver nanoparticles, comprising:
mixing a composition comprising a carbon structure, a plurality of silver nanoparticles, and a liquid to grow silver nanoparticles on a surface of the carbon structure in-situ, wherein the plurality of silver nanoparticles is surface functionalized for controlling a particle size of the plurality of silver nanoparticles wherein the plurality of silver nanoparticles is surface functionalized using an amine.

6. The method of claim 5 , wherein the composition further includes a nitrogen containing moiety, wherein the plurality of silver nanoparticles is surface functionalized resulting in nitrogen surface functionalized silver nanoparticles.

7. The method of claim 6 , further comprising:
adding a reducing agent to precipitate the silver nanoparticles in the liquid.

8. The method of claim 6 , wherein the plurality of silver nanoparticles comprises silver acetate.

9. The method of claim 6 , further comprising:
adding an ionomer to the composition to result in the composition being a printable ink.

10. The method of claim 1 , wherein a diameter of the carbon structure is greater than a diameter of each silver nanoparticle of the plurality of silver nanoparticles.

11. The method of claim 5 , wherein a diameter of the carbon structure is greater than a diameter of each silver nanoparticle of the plurality of silver nanoparticles.

12. The method of claim 1 , wherein the amine comprises dodecylamine.

13. The method of claim 5 , wherein the amine compromises dodecylamine.

Assignees

• Xerox Corp

Inventors

• Claridge Robert
• Zhu Yujie
• Wang Yulin
• Lawton David

Classifications

• B22F1/054

  Nanosized particles · CPC title

• B22F9/24

  starting from liquid metal compounds, e.g. solutions · CPC title

• B22F1/14

  Treatment of metallic powder (mixing with lubricating or binding agents or with organic material B22F1/10) · CPC title

• B22F1/102 Primary

  Metallic powder coated with organic material · CPC title

• C09C3/08

  Treatment with low-molecular-weight {non-polymer} organic compounds {(C09C3/006, C09C3/048 take precedence)} · CPC title