skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Assessment of co-sintering as a fabrication approach for metal-supported proton-conducting solid oxide cells

Journal Article · · Solid State Ionics
 [1];  [1];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Proton conducting oxide electrolyte materials could potentially lower the operating temperature of metal-supported solid oxide cells (MS-SOCs) to the intermediate range 400 to 600 °C. The porous metal substrate provides the advantages of MS-SOCs such as high thermal and redox cycling tolerance, low-cost of structural materials, and mechanical ruggedness. In this work, viability of co-sintering fabrication of metal-supported proton conducting solid oxide cells is investigated. Candidate proton conducting oxides including perovskite oxides BaZr0.7Ce0.2Y0.1O3-δ, SrZr0.5Ce 0.4Y0.1O3-δ, and Ba3Ca1.18Nb1.82O9-δ, pyrochlore oxides La1.95Ca0.05Zr2O7-δ and La2Ce2O7, and acceptor doped rare-earth ortho-niobate La0.99Ca0.01NbO4 are synthesized via solid state reactive or sol-gel methods. These ceramics are sintered at 1450 °C in reducing environment alone and supported on Fe-Cr alloy metal support, and their key characteristics such as phase formation, sintering property, and chemical compatibility with metal support are determined. Most electrolyte candidates suffer from one or more challenges identified for this fabrication approach, including: phase decomposition in reducing atmosphere, evaporation of electrolyte constituents, contamination of the electrolyte with Si and Cr from the metal support, and incomplete electrolyte sintering. In contrast, La0.99Ca0.01NbO4 is found to be highly compatible with the metal support and co-sintering processing in reducing atmosphere. A metal-supported cell is fabricated with La0.99Ca0.01NbO4 electrolyte, ferritic stainless steel support, Pt air electrode and nanoparticulate ceria-Ni hydrogen electrocatalyst. The total resistance is 50 Ω·cm2 at 600 °C. This work clearly demonstrates the challenges, opportunities, and breakthrough of metal-supported proton-conducting solid oxide cells by co-sintering fabrication.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Hydrogen Fuel Cell Technologies Office (HFTO); USDOE Office of Science (SC), Office of Workforce Development for Teachers & Scientists (WDTS)
Grant/Contract Number:
AC02-05CH11231; EE0008080
OSTI ID:
1498696
Alternate ID(s):
OSTI ID: 1547875
Journal Information:
Solid State Ionics, Vol. 332, Issue C; ISSN 0167-2738
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

References (64)

Materials challenges toward proton-conducting oxide fuel cells: a critical review journal January 2010
Towards the Next Generation of Solid Oxide Fuel Cells Operating Below 600 °C with Chemically Stable Proton-Conducting Electrolytes journal September 2011
Steam electrolysis by solid oxide electrolysis cells (SOECs) with proton-conducting oxides journal January 2014
Review of proton conductors for hydrogen separation journal June 2006
A review on proton conducting electrolytes for clean energy and intermediate temperature-solid oxide fuel cells journal November 2017
Proton-Conducting Oxides journal August 2003
Current status of proton-conducting solid oxide fuel cells development journal January 2009
A review on phosphate based, solid state, protonic conductors for intermediate temperature fuel cells journal May 2011
Highly durable, coking and sulfur tolerant, fuel-flexible protonic ceramic fuel cells journal May 2018
Enhanced Sulfur and Coking Tolerance of a Mixed Ion Conductor for SOFCs: BaZr0.1Ce0.7Y0.2–xYbxO3–δ journal October 2009
Review of electrochemical ammonia production technologies and materials journal November 2013
Electrochemical hydrogen pump using a high-temperature-type proton conductor: improvement of pumping capacity journal December 2001
A review of advanced proton-conducting materials for hydrogen separation journal October 2015
Electrochemical reduction of CO2 in a proton conducting solid oxide electrolyser journal January 2011
Dynamic-temperature operation of metal-supported solid oxide fuel cells journal August 2018
Metal-supported solid oxide fuel cells operated in direct-flame configuration journal September 2017
Durability of symmetric-structured metal-supported solid oxide fuel cells journal November 2017
Development Progress on the Ceres Power Steel Cell Technology Platform: Further Progress Towards Commercialization journal May 2017
Personal power using metal-supported solid oxide fuel cells operated in a camping stove flame journal May 2018
Playing with Fire: Commercialization of a Metal-Supported SOFC Product for Use in Charcoal Cookstoves for the Developing World journal May 2017
Development of High Power Density Metal-Supported Solid Oxide Fuel Cells journal May 2017
High-Performance Metal-Supported Solid Oxide Fuel Cells by Advanced Cathode Processing journal January 2017
Towards High Power Density Metal Supported Solid Oxide Fuel Cell for Mobile Applications journal January 2018
High temperature water electrolysis using metal supported solid oxide electrolyser cells (SOEC) journal October 2008
High performance solid oxide electrolysis cell with impregnated electrodes journal May 2015
Metal‐Supported Solid Oxide Electrolysis Cell with Significantly Enhanced Catalysis journal April 2019
Progress in metal-supported solid oxide fuel cells: A review journal August 2010
Recent developments in metal-supported solid oxide fuel cells: Metal-supported solid oxide fuel cells journal March 2017
High performance metal-supported solid oxide fuel cells with infiltrated electrodes journal January 2019
Key Issues in Processing Metal-Supported Proton Conducting Anodes for SOFCs Applications journal April 2011
Development of novel metal-supported proton ceramic electrolyser cell with thin film BZY15–Ni electrode and BZY15 electrolyte journal May 2017
Layered microstructures based on BaZr0.85Y0.15O3−δ by pulsed laser deposition for metal-supported proton ceramic electrolyser cells journal February 2017
Exceptional power density and stability at intermediate temperatures in protonic ceramic fuel cells journal February 2018
High Total Proton Conductivity in Large-Grained Yttrium-Doped Barium Zirconate journal July 2009
Influence of dopant levels on the hydration properties of SZCY and BZCY proton conducting ceramics for hydrogen production journal February 2017
Electrical Properties of Proton-Conducting Ca[sup 2+]-Doped La[sub 2]Zr[sub 2]O[sub 7] with a Pyrochlore-Type Structure journal January 2001
Proton conduction in rare-earth ortho-niobates and ortho-tantalates journal February 2006
Investigation on Proton Conductivity of La2Ce2O7 in Wet Atmosphere: Dependence on Water Vapor Partial Pressure journal February 2012
High-Temperature Proton Conductivity in Acceptor-Substituted Rare-Earth Ortho-Tantalates, LnTaO 4 journal April 2007
Hole percolation and proton conduction in monazite solid solutions: La0.98−xCexSr0.02PO4−δ journal September 2012
Doping effects on complex perovskite Ba3Ca1.18Nb1.82O9−δ intermediate temperature proton conductor journal October 2011
Readily processed protonic ceramic fuel cells with high performance at low temperatures journal July 2015
A 5 × 5 cm2 protonic ceramic fuel cell with a power density of 1.3 W cm–2 at 600 °C journal August 2018
Performance of metal-supported SOFCs with infiltrated electrodes journal September 2007
Synthesis and Stability of a Nanoparticle-Infiltrated Solid Oxide Fuel Cell Electrode journal January 2007
Solid oxide fuel cells with proton-conducting La0.99Ca0.01NbO4 electrolyte journal January 2018
New ionic diffusion strategy to fabricate proton-conducting solid oxide fuel cells based on a stable La2Ce2O7 electrolyte journal June 2013
In Situ Fabrication of a Supported Ba 3 Ca 1.18 Nb 1.82 O 9−δ Membrane Electrolyte for a Proton-Conducting SOFC journal November 2008
Development of Proton Conducting SOFCs Based on LaNbO4 Electrolyte - Status in Norway journal August 2010
Cathode compatibility, operation, and stability of LaNbO4-based proton conducting fuel cells journal September 2014
Tailoring the chemical stability of Ba(Ce0.8−xZrx)Y0.2O3−δ protonic conductors for Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFCs) journal June 2008
Intermediate temperature steam electrolysis using strontium zirconate-based protonic conductors journal January 2009
Preparation of La1.9Ca0.1Zr2O6.95 with pyrochlore structure and its application in synthesis of ammonia at atmospheric pressure journal March 2004
Stable proton-conducting Ca-doped LaNbO4 thin electrolyte-based protonic ceramic membrane fuel cells by in situ screen printing journal June 2009
High-Temperature Proton-Conducting LaNbO 4 -Based Materials: Powder Synthesis by Spray Pyrolysis journal November 2007
Processing of yttrium-doped barium zirconate for high proton conductivity journal May 2007
Cation non-stoichiometry in yttrium-doped barium zirconate: phase behavior, microstructure, and proton conductivity journal January 2010
Solid-state reactive sintering mechanism for proton conducting ceramics journal December 2013
Investigation of the high temperature structural behavior of La0.99Ca0.01NbO4 proton conducting material journal May 2009
Preparation and Characterization of Ni-LaNbO4 Cermet Anode Supports for Proton-Conducting Fuel Cell Applications: Preparation and Characterization of Ni-LaNbO4 Cermet Anode Supports journal April 2010
Monoclinic-to-Tetragonal Phase Transformation in a Ceramic Rare-Earth Orthoniobate, LaNbO 4 journal March 1997
On the development of proton ceramic fuel cells based on Ca-doped LaNbO4 as electrolyte journal May 2015
Thermal and mechanical properties of LaNbO4-based ceramics journal September 2009
Sandvik Sanergy HT – A potential interconnect material for LaNbO4-based proton ceramic fuel cells journal May 2012

Cited By (1)

Progress Report on Proton Conducting Solid Oxide Electrolysis Cells journal July 2019

Related Subjects