公开(公告)号：US20240010850A1

公开(公告)日：2024-01-11

申请号：US17811003

申请日：2022-07-06

Applicant: Xerox Corporation

Inventor： Yujie Zhu ,  Yulin Wang ,  Kurt I. Halfyard ,  Edward G. Zwartz ,  Robert Claridge ,  Benjamin Knapik ,  David Lawton

IPC: C09D5/24 ,  C25B11/081 ,  C25B11/054 ,  C09D11/033 ,  C09D11/037

CPC classification number: C09D5/24 ,  C25B11/081 ,  C25B11/054 ,  C09D11/033 ,  C09D11/037 ,  B82Y30/00

Abstract: A gas diffusion electrode and a method for fabricating the same is disclosed. The gas diffusion electrode can be deployed in a membrane electrode assembly for various applications. In an example, the method to fabricate the gas diffusion electrode includes preparing an ink comprising carbon supported surface functionalized silver nanoparticles and depositing the ink on an electrically conductive surface.

公开(公告)号：US12257633B2

公开(公告)日：2025-03-25

申请号：US17823706

申请日：2022-08-31

Applicant: Xerox Corporation

Inventor： Benjamin Knapik ,  Michael S. Hawkins ,  David Lawton ,  Kimberly D. Nosella

IPC: B22F9/16 ,  B22F1/052 ,  B22F1/065 ,  B22F1/16 ,  B22F9/24

Abstract: A method for producing metal or metal alloy particles may include: mixing a mixture comprising: (a) a metal or a metal alloy, (b) a carrier fluid, and optionally (c) an emulsion stabilizer at a temperature at or greater than a melting point of the metal or the metal alloy to create a dispersion of molten droplets of the metal or the metal alloy dispersed in the carrier fluid; cooling the mixture to below the melting point of the metal or the metal alloy to form metal or metal alloy particles; and separating the metal or metal alloy particles from the carrier fluid, wherein the metal or metal alloy particles comprise the metal or the metal alloy and the emulsion stabilizer, if included.

公开(公告)号：US20230265569A1

公开(公告)日：2023-08-24

申请号：US17676669

申请日：2022-02-21

Applicant: Xerox Corporation

Inventor： Yujie Zhu ,  Benjamin Knapik ,  Kurt I. Halfyard ,  Robert Claridge ,  David Lawton ,  Atousa Abdollahi

IPC: C25B11/081 ,  C25B1/23

CPC classification number: C25B11/081 ,  C25B1/23

Abstract: An electrode and a method for fabricating the same is disclosed. For example, the method to fabricate the electrode includes preparing a deposition composition comprising amine-functionalized silver nanoparticles and a solvent and depositing the deposition composition onto an electrically conductive substrate. The electrode can be deployed in a gas diffusion electrode.

公开(公告)号：US20220063187A1

公开(公告)日：2022-03-03

申请号：US17004766

申请日：2020-08-27

Applicant: Xerox Corporation

Inventor： Naveen Chopra ,  Benjamin Knapik ,  Syed Mohsin Ali ,  Jennifer L. Belelie

IPC: B29C64/165 ,  B29C64/40 ,  B29C64/209

Abstract: When constructing parts by additive manufacturing, it is sometimes necessary to include a support structure during part fabrication, wherein the support structure is subsequently removable. Polymer filaments suitable for forming support structures during additive manufacturing may comprise a polymeric material, and a gas-forming substance admixed with the polymeric material in an effective amount to undergo effervescence when the polymeric material is in contact with at least one fluid comprising a liquid phase. Additive manufacturing processes may comprise forming a supported part by depositing a build material and a removable support (e.g., upon a print bed) formed from such polymer filaments, wherein at least a portion of the build material is deposited upon the removable support. Exposure of the gas-forming substance to a fluid in which the polymeric material dissolves or degrades may promote gas formation to facilitate elimination of the removable support by effervescence.