Porous platinum-based catalysts for oxygen reduction

Erlebacher, Jonah D; Snyder, Joshua D

Title: Porous platinum-based catalysts for oxygen reduction

Patent · Tue Nov 25 00:00:00 EST 2014

OSTI ID:1164350

Erlebacher, Jonah D; Snyder, Joshua D

A porous metal that comprises platinum and has a specific surface area that is greater than 5 m.sup.2/g and less than 75 m.sup.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.sup.2/g and less than 75 m.sup.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.sub.xNi.sub.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.

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Research Organization:: Johns Hopkins Univ., Baltimore, MD (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FG02-05ER15727

Assignee:: The Johns Hopkins University (Baltimore, MD)

Patent Number(s):: 8,895,206

Application Number:: 12/920,527

OSTI ID:: 1164350

Country of Publication:: United States

Language:: English

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Cited By (2)

Methods to synthesize NiPt bimetallic nanoparticles by a reversed-phase microemulsion, deposition of NiPt bimetallic nanoparticles on a support, and application of the supported catalyst for CO2 reforming of methane Biausque, Gregory; Laveille, Paco; Anjum, Dalaver H. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9469535 US Patent Document 9,469,535	patent	October 2016
Methods to synthesize NiPt bimetallic nanoparticles by a reversed-phase microemulsion, deposition of NiPt bimetallic nanoparticles on a support, and application of the supported catalyst for CO2 reforming of methane Biausque, Gregory; Laveille, Paco; Anjum, Dalaver H. https://doi.org/https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9017576 US Patent Document 9,017,576	patent	April 2015

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