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Title: °Enhancing High Temperature Anode Performance with 2° Anchoring Phases

Abstract

Project accomplishments included developing and optimizing strength testing of aluminum titanate (ALT)-doped Ni-YSZ materials and identified the dopant levels that optimized mechanical strength and enhanced electrochemical performance. We also optimized our ability to fabricate electrolyte supported button cells with anodes consisting of powders provided by Fuel Cell Energy. In several instances, those anodes were infiltrated with ALT and tested with hydrogen for 30 hours at 800°C at an applied potential of 0.4 V. Our research activities were focused in three areas: 1) mechanical strength testing on as prepared and reducced nickel-YSZ structures that were either free of a dopant or prepared by mechanically mixing in ALT at various weight percents (up to 10 wt%); 2) 24-hour electrochemical testing of electroylte supported cells having anodes made from Ni/YSZ and Ni/YSZ/ALT anodes with specific attention focused on modeling degradation rates; and 3) operando EIS and optical testing of both in-house fabricated devices as well as membrane electrode assemblies that were acquired from commercial vendors.

Authors:
ORCiD logo [1];  [1];  [1]
  1. Montana State Univ., Bozeman, MT (United States)
Publication Date:
Research Org.:
Montana State Univ., Bozeman, MT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1417855
Report Number(s):
DOE-MTST-FE0026192
DOE Contract Number:  
FE0026192
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; solid oxide fuel cell; secondary phase; catalyst; electrochemistry

Citation Formats

Walker, Robert A., Sofie, Stephen W., and Amendola, Roberta. °Enhancing High Temperature Anode Performance with 2° Anchoring Phases. United States: N. p., 2015. Web. doi:10.2172/1417855.
Walker, Robert A., Sofie, Stephen W., & Amendola, Roberta. °Enhancing High Temperature Anode Performance with 2° Anchoring Phases. United States. doi:10.2172/1417855.
Walker, Robert A., Sofie, Stephen W., and Amendola, Roberta. Thu . "°Enhancing High Temperature Anode Performance with 2° Anchoring Phases". United States. doi:10.2172/1417855. https://www.osti.gov/servlets/purl/1417855.
@article{osti_1417855,
title = {°Enhancing High Temperature Anode Performance with 2° Anchoring Phases},
author = {Walker, Robert A. and Sofie, Stephen W. and Amendola, Roberta},
abstractNote = {Project accomplishments included developing and optimizing strength testing of aluminum titanate (ALT)-doped Ni-YSZ materials and identified the dopant levels that optimized mechanical strength and enhanced electrochemical performance. We also optimized our ability to fabricate electrolyte supported button cells with anodes consisting of powders provided by Fuel Cell Energy. In several instances, those anodes were infiltrated with ALT and tested with hydrogen for 30 hours at 800°C at an applied potential of 0.4 V. Our research activities were focused in three areas: 1) mechanical strength testing on as prepared and reducced nickel-YSZ structures that were either free of a dopant or prepared by mechanically mixing in ALT at various weight percents (up to 10 wt%); 2) 24-hour electrochemical testing of electroylte supported cells having anodes made from Ni/YSZ and Ni/YSZ/ALT anodes with specific attention focused on modeling degradation rates; and 3) operando EIS and optical testing of both in-house fabricated devices as well as membrane electrode assemblies that were acquired from commercial vendors.},
doi = {10.2172/1417855},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {10}
}