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Title: Fluidized Bed Production of Surface Functionalized Powders for Solid Oxide Fuel Cell Cathodes

Abstract

Fuel cells offer tremendous potential for highly efficient conversion of fossil fuels to useable electrical power. Solid oxide fuel cells (SOFC) are particularly attractive, due to their high efficiency and capability to utilize either hydrogen or hydrocarbon fuels. Presently, there is considerable incentive to develop medium temperature (600 C to 800 C) SOFC's, in order to reduce the material compatibility issues and the engineering challenges associated with higher operating temperatures. Developing cathode materials with viable performance at intermediate temperatures is presently one of the key challenges in commercialization of solid oxide fuel cells. Recent works have shown the advantages of using surface functionalized cathode materials to improve SOFC performance at intermediate temperatures. However, present techniques for surface functionalization are expensive and difficult to implement in commercial SOFC production. In this SBIR Program, Structured Materials Industries, Inc. (SMI), along with partners FuelCell Energy, Inc. (FCE) and the University of Connecticut (UConn), demonstrated a simple and economical process to produce surface functionalized cathode materials, based on fluidized bed technology. SMI has developed a variation on this technology, known as Fluidized Bed Chemical Vapor Deposition (FBCVD), and is presently implementing and commercializing FBCVD as an economical and scalable process to deposit coatings onmore » powder materials. In Phase I of this Project, the SBIR team demonstrated technical feasibility of this approach for producing high performance SOFC cathode materials. In this Phase II Project, the SBIR team refined and optimized the FBCVD process and the surface functionalized cathode materials. Surface functionalized powders of various composition and morphology were produced at SMI using the FBCVD process. Electrochemical characterization of the powders was done at FCE under actual SOFC operating conditions. The results demonstrated the potential for significant improvement in SOFC performance. Long term testing at FCE showed the performance enhancement to be stable with time. Advanced materials characterization at UConn identified the composition and morphology of the materials. SMI's FBCVD processed materials represent a "drop in" replacement for present cathode materials, and should have minimal impact on SOFC production costs. SMI has designed a scaled up FBCVD system for high volume production of SOFC cathode materials, and is well positioned for future implementation and commercialization of the technology developed in this SBIR.« less

Authors:
 [1];  [1];  [1];  [1];  [2];  [2];  [2];  [3];  [3]
  1. Structured Materials Industries, Inc., Piscataway, NJ (United States)
  2. FuelCell Energy, Inc., Danbury, CT (United States)
  3. Univ. of Connecticut, Storrs, CT (United States)
Publication Date:
Research Org.:
Structured Materials Industries, Inc., Piscataway, NJ (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1484154
Report Number(s):
DOE SC0013238 42038
3019908685
DOE Contract Number:  
SC0013238
Type / Phase:
SBIR (Phase II)
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Sbrockey, Nick, Tompa, Gary S., Salagaj, Thomas, Feldman, Aaron, Ghezel-Ayagh, Hossein, Torabi, Alireza, Barton, Joseph, Aindow, Mark, and Deljoo, Bahareh. Fluidized Bed Production of Surface Functionalized Powders for Solid Oxide Fuel Cell Cathodes. United States: N. p., 2018. Web.
Sbrockey, Nick, Tompa, Gary S., Salagaj, Thomas, Feldman, Aaron, Ghezel-Ayagh, Hossein, Torabi, Alireza, Barton, Joseph, Aindow, Mark, & Deljoo, Bahareh. Fluidized Bed Production of Surface Functionalized Powders for Solid Oxide Fuel Cell Cathodes. United States.
Sbrockey, Nick, Tompa, Gary S., Salagaj, Thomas, Feldman, Aaron, Ghezel-Ayagh, Hossein, Torabi, Alireza, Barton, Joseph, Aindow, Mark, and Deljoo, Bahareh. Fri . "Fluidized Bed Production of Surface Functionalized Powders for Solid Oxide Fuel Cell Cathodes". United States.
@article{osti_1484154,
title = {Fluidized Bed Production of Surface Functionalized Powders for Solid Oxide Fuel Cell Cathodes},
author = {Sbrockey, Nick and Tompa, Gary S. and Salagaj, Thomas and Feldman, Aaron and Ghezel-Ayagh, Hossein and Torabi, Alireza and Barton, Joseph and Aindow, Mark and Deljoo, Bahareh},
abstractNote = {Fuel cells offer tremendous potential for highly efficient conversion of fossil fuels to useable electrical power. Solid oxide fuel cells (SOFC) are particularly attractive, due to their high efficiency and capability to utilize either hydrogen or hydrocarbon fuels. Presently, there is considerable incentive to develop medium temperature (600 C to 800 C) SOFC's, in order to reduce the material compatibility issues and the engineering challenges associated with higher operating temperatures. Developing cathode materials with viable performance at intermediate temperatures is presently one of the key challenges in commercialization of solid oxide fuel cells. Recent works have shown the advantages of using surface functionalized cathode materials to improve SOFC performance at intermediate temperatures. However, present techniques for surface functionalization are expensive and difficult to implement in commercial SOFC production. In this SBIR Program, Structured Materials Industries, Inc. (SMI), along with partners FuelCell Energy, Inc. (FCE) and the University of Connecticut (UConn), demonstrated a simple and economical process to produce surface functionalized cathode materials, based on fluidized bed technology. SMI has developed a variation on this technology, known as Fluidized Bed Chemical Vapor Deposition (FBCVD), and is presently implementing and commercializing FBCVD as an economical and scalable process to deposit coatings on powder materials. In Phase I of this Project, the SBIR team demonstrated technical feasibility of this approach for producing high performance SOFC cathode materials. In this Phase II Project, the SBIR team refined and optimized the FBCVD process and the surface functionalized cathode materials. Surface functionalized powders of various composition and morphology were produced at SMI using the FBCVD process. Electrochemical characterization of the powders was done at FCE under actual SOFC operating conditions. The results demonstrated the potential for significant improvement in SOFC performance. Long term testing at FCE showed the performance enhancement to be stable with time. Advanced materials characterization at UConn identified the composition and morphology of the materials. SMI's FBCVD processed materials represent a "drop in" replacement for present cathode materials, and should have minimal impact on SOFC production costs. SMI has designed a scaled up FBCVD system for high volume production of SOFC cathode materials, and is well positioned for future implementation and commercialization of the technology developed in this SBIR.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {11}
}

Technical Report:
This technical report may be released as soon as December 2, 2022
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