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Title: Carbon based electrocatalysts for fuel cells

Abstract

Novel proton exchange membrane fuel cells and direct methanol fuel cells with nanostructured components are configured with higher precious metal utilization rate at the electrodes, higher power density, and lower cost. To form a catalyst, platinum or platinum-ruthenium nanoparticles are deposited onto carbon-based materials, for example, single-walled, dual-walled, multi-walled and cup-stacked carbon nanotubes. The deposition process includes an ethylene glycol reduction method. Aligned arrays of these carbon nanomaterials are prepared by filtering the nanomaterials with ethanol. A membrane electrode assembly is formed by sandwiching the catalyst between a proton exchange membrane and a diffusion layer that form a first electrode. The second electrode may be formed using a conventional catalyst. The several layers of the MEA are hot pressed to form an integrated unit. Proton exchange membrane fuel cells and direct methanol fuel cells are developed by stacking the membrane electrode assemblies in a conventional manner.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Univ. of California, Oakland, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1531756
Patent Number(s):
8247136
Application Number:
11/376,768
Assignee:
The Regents of the University of California (Oakland, CA)
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
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
DOE Contract Number:  
FG02-05ER15716
Resource Type:
Patent
Resource Relation:
Patent File Date: 2006-03-15
Country of Publication:
United States
Language:
English

Citation Formats

Yan, Yushan, Wang, Xin, Li, Wenzhen, Waje, Mahesh, Chen, Zhongwei, Goddard, William, and Deng, Wei-Qiao. Carbon based electrocatalysts for fuel cells. United States: N. p., 2012. Web.
Yan, Yushan, Wang, Xin, Li, Wenzhen, Waje, Mahesh, Chen, Zhongwei, Goddard, William, & Deng, Wei-Qiao. Carbon based electrocatalysts for fuel cells. United States.
Yan, Yushan, Wang, Xin, Li, Wenzhen, Waje, Mahesh, Chen, Zhongwei, Goddard, William, and Deng, Wei-Qiao. Tue . "Carbon based electrocatalysts for fuel cells". United States. https://www.osti.gov/servlets/purl/1531756.
@article{osti_1531756,
title = {Carbon based electrocatalysts for fuel cells},
author = {Yan, Yushan and Wang, Xin and Li, Wenzhen and Waje, Mahesh and Chen, Zhongwei and Goddard, William and Deng, Wei-Qiao},
abstractNote = {Novel proton exchange membrane fuel cells and direct methanol fuel cells with nanostructured components are configured with higher precious metal utilization rate at the electrodes, higher power density, and lower cost. To form a catalyst, platinum or platinum-ruthenium nanoparticles are deposited onto carbon-based materials, for example, single-walled, dual-walled, multi-walled and cup-stacked carbon nanotubes. The deposition process includes an ethylene glycol reduction method. Aligned arrays of these carbon nanomaterials are prepared by filtering the nanomaterials with ethanol. A membrane electrode assembly is formed by sandwiching the catalyst between a proton exchange membrane and a diffusion layer that form a first electrode. The second electrode may be formed using a conventional catalyst. The several layers of the MEA are hot pressed to form an integrated unit. Proton exchange membrane fuel cells and direct methanol fuel cells are developed by stacking the membrane electrode assemblies in a conventional manner.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {8}
}

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Works referenced in this record:

Controlled synthesis and metal-filling of aligned carbon nanotubes
patent, October 2000


Method for the synthesis of a fuel cell electrocatalyst
patent, January 2007


Electrochemical fullerene system
patent, November 1995


Molded roller for tape cartridge
patent, October 2000


Oxidation catalyst and process
patent, October 2006


Microtextured catalyst transfer substrate
patent, October 2000


Graphite nanofiber catalyst systems for use in fuel cell electrodes
patent, November 2002


Proton exchange membrane fuel cell power system
patent, February 2000


Process for preparing carbon nanotubes
patent, June 2006


Macroscopic ordered assembly of carbon nanotubes
patent, September 2004


Fuel cell
patent-application, September 2004


Membrane comprising an array of single-wall carbon nanotubes
patent, April 2007


Methanol tolerant catalyst material
patent, June 2001


Fuel cell electrode and method for producing same
patent, January 1994


Solid polymer electrolyte fuel cell
patent, January 2002


Method of producing membrane electrode assemblies for use in proton exchange membrane and direct methanol fuel cells
patent, August 2006


Fuel cell
patent, March 2004


Fuel cell systems
patent, May 2007


Supported nanoparticle catalyst
patent, February 2004


    Works referencing / citing this record:

    Dosimetry via platinum—ruthenium nanoparticle-decorated nanostructure
    patent, April 2016