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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)
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. 2018. "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 = {},
url = {https://www.osti.gov/biblio/1423298}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {2}
}

Works referenced in this record:

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


Nafion Nanofiber Membranes
journal, January 2009


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