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Title: Methods of producing porous platinum-based catalysts for oxygen reduction

Abstract

A porous metal that comprises platinum and has a specific surface area that is greater than 5 m 2/g and less than 75 m 2/g. A fuel cell includes a first electrode, a second electrode spaced apart from the first electrode, and an electrolyte arranged between the first and the second electrodes. At least one of the first and second electrodes is coated with a porous metal catalyst for oxygen reduction, and the porous metal catalyst comprises platinum and has a specific surface area that is greater than 5 m 2/g and less than 75 m 2/g. A method of producing a porous metal according to an embodiment of the current invention includes producing an alloy consisting essentially of platinum and nickel according to the formula Pt xNi 1-x, where x is at least 0.01 and less than 0.3; and dealloying the alloy in a substantially pH neutral solution to reduce an amount of nickel in the alloy to produce the porous metal.

Inventors:
;
Publication Date:
Research Org.:
The Johns Hopkins University, Baltimore, MD (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1457416
Patent Number(s):
9,997,788
Application Number:
14/523,411
Assignee:
The Johns Hopkins University (Baltimore, MD) CHO
DOE Contract Number:
FG02-05ER15727
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Oct 24
Country of Publication:
United States
Language:
English

Citation Formats

Erlebacher, Jonah D., and Snyder, Joshua D.. Methods of producing porous platinum-based catalysts for oxygen reduction. United States: N. p., 2018. Web.
Erlebacher, Jonah D., & Snyder, Joshua D.. Methods of producing porous platinum-based catalysts for oxygen reduction. United States.
Erlebacher, Jonah D., and Snyder, Joshua D.. Tue . "Methods of producing porous platinum-based catalysts for oxygen reduction". United States. doi:. https://www.osti.gov/servlets/purl/1457416.
@article{osti_1457416,
title = {Methods of producing porous platinum-based catalysts for oxygen reduction},
author = {Erlebacher, Jonah D. and Snyder, Joshua D.},
abstractNote = {A porous metal that comprises platinum and has a specific surface area that is greater than 5 m2/g and less than 75 m2/g. A fuel cell includes a first electrode, a second electrode spaced apart from the first electrode, and an electrolyte arranged between the first and the second electrodes. At least one of the first and second electrodes is coated with a porous metal catalyst for oxygen reduction, and the porous metal catalyst comprises platinum and has a specific surface area that is greater than 5 m2/g and less than 75 m2/g. A method of producing a porous metal according to an embodiment of the current invention includes producing an alloy consisting essentially of platinum and nickel according to the formula PtxNi1-x, where x is at least 0.01 and less than 0.3; and dealloying the alloy in a substantially pH neutral solution to reduce an amount of nickel in the alloy to produce the porous metal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 12 00:00:00 EDT 2018},
month = {Tue Jun 12 00:00:00 EDT 2018}
}

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