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Title: Platinum adlayered ruthenium nanoparticles, method for preparing, and uses thereof

Abstract

A superior, industrially scalable one-pot ethylene glycol-based wet chemistry method to prepare platinum-adlayered ruthenium nanoparticles has been developed that offers an exquisite control of the platinum packing density of the adlayers and effectively prevents sintering of the nanoparticles during the deposition process. The wet chemistry based method for the controlled deposition of submonolayer platinum is advantageous in terms of processing and maximizing the use of platinum and can, in principle, be scaled up straightforwardly to an industrial level. The reactivity of the Pt(31)-Ru sample was about 150% higher than that of the industrial benchmark PtRu (1:1) alloy sample but with 3.5 times less platinum loading. Using the Pt(31)-Ru nanoparticles would lower the electrode material cost compared to using the industrial benchmark alloy nanoparticles for direct methanol fuel cell applications.

Inventors:
;
Issue Date:
Research Org.:
Georgetown Univ., Washington, DC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1209329
Patent Number(s):
9105934
Application Number:
13/081,809
Assignee:
Georgetown University (Washington, DC)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
DOE Contract Number:  
FG02-07ER15895
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Apr 07
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Tong, YuYe, and Du, Bingchen. Platinum adlayered ruthenium nanoparticles, method for preparing, and uses thereof. United States: N. p., 2015. Web.
Tong, YuYe, & Du, Bingchen. Platinum adlayered ruthenium nanoparticles, method for preparing, and uses thereof. United States.
Tong, YuYe, and Du, Bingchen. Tue . "Platinum adlayered ruthenium nanoparticles, method for preparing, and uses thereof". United States. https://www.osti.gov/servlets/purl/1209329.
@article{osti_1209329,
title = {Platinum adlayered ruthenium nanoparticles, method for preparing, and uses thereof},
author = {Tong, YuYe and Du, Bingchen},
abstractNote = {A superior, industrially scalable one-pot ethylene glycol-based wet chemistry method to prepare platinum-adlayered ruthenium nanoparticles has been developed that offers an exquisite control of the platinum packing density of the adlayers and effectively prevents sintering of the nanoparticles during the deposition process. The wet chemistry based method for the controlled deposition of submonolayer platinum is advantageous in terms of processing and maximizing the use of platinum and can, in principle, be scaled up straightforwardly to an industrial level. The reactivity of the Pt(31)-Ru sample was about 150% higher than that of the industrial benchmark PtRu (1:1) alloy sample but with 3.5 times less platinum loading. Using the Pt(31)-Ru nanoparticles would lower the electrode material cost compared to using the industrial benchmark alloy nanoparticles for direct methanol fuel cell applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {8}
}

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Works referenced in this record:

Formation of Pt−Ru Nanoparticles in Ethylene Glycol Solution: An in Situ X-ray Absorption Spectroscopy Study
journal, May 2007


On the electrocatalysis of ethylene glycol oxidation
journal, December 2003


Electro-oxidation of ethylene glycol on PtRu/C and PtSn/C electrocatalysts prepared by alcohol-reduction process
journal, February 2005


A volcano curve: optimizing methanol electro-oxidation on Pt-decorated Ru nanoparticles
journal, January 2009


Ru@Pt core–shell nanoparticles for methanol fuel cell catalyst: Control and effects of shell composition
journal, December 2013


Performance of direct methanol fuel cell using carbon nanotube-supported Pt–Ru anode catalyst with controlled composition
journal, September 2006