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Title: Nanofiber electrode and method of forming same

Abstract

In one aspect, a method of forming an electrode for an electrochemical device is disclosed. In one embodiment, the method includes the steps of mixing at least a first amount of a catalyst and a second amount of an ionomer or uncharged polymer to form a solution and delivering the solution into a metallic needle having a needle tip. The method further includes the steps of applying a voltage between the needle tip and a collector substrate positioned at a distance from the needle tip, and extruding the solution from the needle tip at a flow rate such as to generate electrospun fibers and deposit the generated fibers on the collector substrate to form a mat with a porous network of fibers. Each fiber in the porous network of the mat has distributed particles of the catalyst. The method also includes the step of pressing the mat onto a membrane.

Inventors:
;
Publication Date:
Research Org.:
Vanderbilt Univ., Nashville, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1423298
Patent Number(s):
9,905,870
Application Number:
PCT/US2011/058088
Assignee:
VANDERBILT UNIVERSITY (Nashville, TN) GFO
DOE Contract Number:  
FG36-06GO16030
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Oct 27
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Pintauro, Peter N., and Zhang, Wenjing. Nanofiber electrode and method of forming same. United States: N. p., 2018. Web.
Pintauro, Peter N., & Zhang, Wenjing. Nanofiber electrode and method of forming same. United States.
Pintauro, Peter N., and Zhang, Wenjing. Tue . "Nanofiber electrode and method of forming same". United States. https://www.osti.gov/servlets/purl/1423298.
@article{osti_1423298,
title = {Nanofiber electrode and method of forming same},
author = {Pintauro, Peter N. and Zhang, Wenjing},
abstractNote = {In one aspect, a method of forming an electrode for an electrochemical device is disclosed. In one embodiment, the method includes the steps of mixing at least a first amount of a catalyst and a second amount of an ionomer or uncharged polymer to form a solution and delivering the solution into a metallic needle having a needle tip. The method further includes the steps of applying a voltage between the needle tip and a collector substrate positioned at a distance from the needle tip, and extruding the solution from the needle tip at a flow rate such as to generate electrospun fibers and deposit the generated fibers on the collector substrate to form a mat with a porous network of fibers. Each fiber in the porous network of the mat has distributed particles of the catalyst. The method also includes the step of pressing the mat onto a membrane.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {2}
}

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Works referenced in this record:

Electrospinning and Solution Properties of Nafion and Poly(acrylic acid)
journal, January 2008

  • Chen, Hong; Snyder, Joshua D.; Elabd, Yossef A.
  • Macromolecules, Vol. 41, Issue 1, p. 128-135
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Nafion Nanofiber Membranes
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  • DOI: 10.1149/1.3210701

Study on the Cathode Fabricated by Spinning Process and Its Performance in PEFC
journal, January 2009

  • Kotera, Seigo; Watabe, Hiroyuki; Fujii, Katsuya
  • ECS Transactions, Vol. 25, Issue 1, p. 821-830
  • DOI: 10.1149/1.3210635