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 = {Tue Aug 21 00:00:00 EDT 2012},
month = {Tue Aug 21 00:00:00 EDT 2012}
}
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Works referencing / citing this record:
Dosimetry via platinum—ruthenium nanoparticle-decorated nanostructure
patent, April 2016
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