IP Library Granted Patent US 12,410,328
Granted Patent B2
US 12,410,328 · App. 17/810,979 · Granted Sep 9, 2025

Carbon supported surface functionalized silver nanoparticles

Inventors: Robert Claridge (Cambridge, CA); Yujie Zhu (Mississauga, CA); Yulin Wang (Oakville, CA); David Lawton (Burlington, CA)
Assignee: Xerox Corporation
C09D11/037C09C3/08B22F1/054B22F1/102B22F1/14B22F9/24B82Y30/00B82Y40/00
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Quick Facts
Patent No.
US 12,410,328
App. No.
17/810,979
Granted
Sep 9, 2025
Kind
B2
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.

Claims (19)

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.

Assignments (5)
SECOND LIEN NOTES PATENT SECURITY AGREEMENT Recorded Jul 2, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 071785/0550 →
FIRST LIEN NOTES PATENT SECURITY AGREEMENT Recorded Apr 11, 2025
From: XEROX CORPORATION
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 070824/0001 →
SECURITY INTEREST Recorded Feb 13, 2024
From: XEROX CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 066741/0001 →
SECURITY INTEREST Recorded Nov 20, 2023
From: XEROX CORPORATION
To: JEFFERIES FINANCE LLC, AS COLLATERAL AGENT
Reel/Frame 065628/0019 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 6, 2022
From: CLARIDGE, ROBERT; ZHU, YUJIE; WANG, YULIN; LAWTON, DAVID
To: XEROX CORPORATION
Reel/Frame 060415/0354 →