Flow-based anode for the electrocatalytic oxidation of a fuel or other reductant
Abstract
Anode half-cells for the electrocatalytic oxidation of a liquid or gaseous fuel or other reductant are disclosed, along with electrochemical cells that include such half-cells. The anode half-cells include redox mediator/heterogeneous redox catalyst pairs within an electrolyte solution that is also in contact with an electrode. The electrode is not in direct contact with the heterogeneous catalyst. The redox mediator must include at least one carbon atom and be capable of transferring or accepting electrons and protons while undergoing reduction or oxidation.In operation, the fuel or other reductant is oxidized and the redox mediator is reduced at the heterogeneous catalyst. The reduced form of the redox mediator can then migrate to the electrode, where it is converted back to its oxidized form, which can then migrate back to the heterogeneous catalyst, where the cycle is repeated. The disclosed anode half-cells can be used in electrochemical cells, such as in fuel cells that produce electricity, or in electrosynthetic cells that produce one or more desired chemical products.
- Inventors:
- Issue Date:
- Research Org.:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1735088
- Patent Number(s):
- 10727518
- Application Number:
- 16/005,783
- Assignee:
- Wisconsin Alumni Research Foundation (Madison, WI)
- 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:
- AC05-76RL01830
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 06/12/2018
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Stahl, Shannon S., Gerken, James B., Anson, Colin W., Root, Thatcher W., and Preger, Yuliya. Flow-based anode for the electrocatalytic oxidation of a fuel or other reductant. United States: N. p., 2020.
Web.
Stahl, Shannon S., Gerken, James B., Anson, Colin W., Root, Thatcher W., & Preger, Yuliya. Flow-based anode for the electrocatalytic oxidation of a fuel or other reductant. United States.
Stahl, Shannon S., Gerken, James B., Anson, Colin W., Root, Thatcher W., and Preger, Yuliya. Tue .
"Flow-based anode for the electrocatalytic oxidation of a fuel or other reductant". United States. https://www.osti.gov/servlets/purl/1735088.
@article{osti_1735088,
title = {Flow-based anode for the electrocatalytic oxidation of a fuel or other reductant},
author = {Stahl, Shannon S. and Gerken, James B. and Anson, Colin W. and Root, Thatcher W. and Preger, Yuliya},
abstractNote = {Anode half-cells for the electrocatalytic oxidation of a liquid or gaseous fuel or other reductant are disclosed, along with electrochemical cells that include such half-cells. The anode half-cells include redox mediator/heterogeneous redox catalyst pairs within an electrolyte solution that is also in contact with an electrode. The electrode is not in direct contact with the heterogeneous catalyst. The redox mediator must include at least one carbon atom and be capable of transferring or accepting electrons and protons while undergoing reduction or oxidation.In operation, the fuel or other reductant is oxidized and the redox mediator is reduced at the heterogeneous catalyst. The reduced form of the redox mediator can then migrate to the electrode, where it is converted back to its oxidized form, which can then migrate back to the heterogeneous catalyst, where the cycle is repeated. The disclosed anode half-cells can be used in electrochemical cells, such as in fuel cells that produce electricity, or in electrosynthetic cells that produce one or more desired chemical products.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}
Works referenced in this record:
Chemically regenerable redox fuel cell and method of operating the same
patent, August 1983
- Kummer, Joseph T.; Oei, Djong-Gie
- US Patent Document 4,396,687
Fuel Cells
patent-application, May 2010
- Knuckey, Kathryn; Creeth, Andrew
- US Patent Application 12/374371; 20100112388
System for the electrochemical delignification of lignin-containing materials and a process for its application
patent, February 2001
- Hampp, Norbert
- US Patent Document 6,187,170
Method for producing electric energy in a biofuel-powered fuel cell
patent, August 1997
- Larsson, Ragnar; Folkesson, Borje
- US Patent Document 5,660,940
Fuel Cells
patent-application, November 2008
- Creeth, Andrew
- US Patent Application 11/911945; 20080274385
Redox Fuel Cell
patent-application, November 2010
- Creeth, Andrew; Potter, Andrew; Knuckey, Kathryn
- US Patent Application 12/678687; 20100297522
Fuel cell and method for generating electric power
patent, March 2013
- Watt, Gerald; Wheeler, Dean R.
- US Patent Document 8,404,396
Carbon Nanostructure Electrode Based Sensors: Devices, Processes and Uses Thereof
patent-application, November 2009
- Man, Piu; Patil, Ajeeta; Tan, Kah
- US Patent Application 12/423989; 20090278556