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

Title: High-throughput, super-resolution 3D reconstruction of nano-structured solid oxide fuel cell electrodes and quantification of microstructure-property relationships

Journal Article · · Journal of Power Sources

Nano-structuring methods are actively applied to solid oxide fuel cell electrodes to reduce the operating temperature while preserving a high electro-catalytic activity. The unique nanoscale microstructure is vital to electrochemical performance, yet not well quantified in three dimensions. Here, with a multi-stage recovering principle of distance correlation functions, the three-dimensional microstructures of La0.8Sr0.2MnO3-δ nanoparticles infiltrated porous Y0.16Zr0.84O2-δ electrodes are reconstructed with a dimension of 1024 × 1024 × 1024 voxels at a resolution of 7.5 nm from one two-dimensional micrograph. The key geometric characteristics, such as tortuosity factors, active surface/interface areas and three-phase boundary length, are calculated from the reconstructed three-dimensional microstructures at various loadings of La0.8Sr0.2MnO3-δ. Combining with the analysis of distribution of relaxation times, the active three-phase boundary length is shown to be the main factor governing the electrode impedance, and is related quantitatively to the electrochemical process at high frequency. The accuracy of capturing nanoscale features is validated by the focused ion beam sectioning dataset of a Ni-Y0.16Zr0.84O2-δ electrode at nanoscale resolution. Lastly, this work provides a promising strategy for reconstructing three-dimensional heterogeneous nanostructures from one super-resolution two-dimensional micrograph, and demonstrates a quantitative approach for uncovering processing-structure-property relationships of nanostructured electrodes and beyond.

Research Organization:
Univ. of South Carolina, Columbia, SC (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
Grant/Contract Number:
FE0031670
OSTI ID:
1571436
Journal Information:
Journal of Power Sources, Vol. 427, Issue C; ISSN 0378-7753
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (43)

Electrochemical fields within 3D reconstructed microstructures of mixed ionic and electronic conducting devices journal November 2016
Nanoscale and nano-structured electrodes of solid oxide fuel cells by infiltration: Advances and challenges journal January 2012
High-Performance SOFC Cathodes Prepared by Infiltration journal March 2009
Enhancing SOFC cathode performance by surface modification through infiltration journal January 2014
Rational SOFC material design: new advances and tools journal November 2011
A robust and active hybrid catalyst for facile oxygen reduction in solid oxide fuel cells journal January 2017
Switching on electrocatalytic activity in solid oxide cells journal August 2016
In situ growth of nanoparticles through control of non-stoichiometry journal October 2013
Exsolution trends and co-segregation aspects of self-grown catalyst nanoparticles in perovskites journal June 2017
High-Performance Anode Material Sr 2 FeMo 0.65 Ni 0.35 O 6−δ with In Situ Exsolved Nanoparticle Catalyst journal August 2016
Enhancement in Three-Phase Boundary of SOFC Electrodes by an Ion Impregnation Method: A Modeling Comparison journal January 2008
High performance electrolyte-coated anodes for low-temperature solid oxide fuel cells: Model and Experiments journal April 2008
The Effect of Porous Composite Electrode Structure on Solid Oxide Fuel Cell Performance journal January 1997
Use of the Simple Infiltrated Microstructure Polarization Loss Estimation (SIMPLE) model to describe the performance of nano-composite solid oxide fuel cell cathodes journal January 2012
Prediction of infiltrated solid oxide fuel cell cathode polarization resistance journal January 2009
Modelling the 3D microstructure and performance of solid oxide fuel cell electrodes: Computational parameters journal June 2011
Computation of TPB length, surface area and pore size from numerical reconstruction of composite solid oxide fuel cell electrodes journal April 2009
Connected Three-Phase Boundary Length Evaluation in Modeled Sintered Composite Solid Oxide Fuel Cell Electrodes journal January 2010
Three-dimensional random resistor-network model for solid oxide fuel cell composite electrodes journal April 2010
Microstructural Insights into Dual-Phase Infiltrated Solid Oxide Fuel Cell Electrodes journal January 2013
Geometric Properties of Nanostructured Solid Oxide Fuel Cell Electrodes journal January 2013
Thermal aging stability of infiltrated solid oxide fuel cell electrode microstructures: A three-dimensional kinetic Monte Carlo simulation journal December 2015
Modelling the triple phase boundary length in infiltrated SOFC electrodes journal November 2017
A Particle-Based Model for Effective Properties in Infiltrated Solid Oxide Fuel Cell Electrodes journal January 2014
Microstructural stability of supported metal catalysts: A phase field approach journal November 2017
Phase field modeling of microstructure evolution of electrocatalyst-infiltrated solid oxide fuel cell cathodes journal February 2015
Three-dimensional microstructural imaging methods for energy materials journal January 2013
Three-dimensional reconstruction of a solid-oxide fuel-cell anode journal June 2006
Nondestructive Nanoscale 3D Elemental Mapping and Analysis of a Solid Oxide Fuel Cell Anode journal January 2010
Enhancing grain boundary ionic conductivity in mixed ionic–electronic conductors journal April 2015
Quantitative interpretation of impedance spectroscopy data on porous LSM electrodes using X-ray computed tomography and Bayesian model-based analysis journal January 2017
Quantifying intermediate-frequency heterogeneities of SOFC electrodes using X-ray computed tomography journal March 2017
3D reconstruction size effect on the quantification of solid oxide fuel cell nickel–yttria-stabilized-zirconia anode microstructural information using scanning electron microscopy-focused ion beam technique journal September 2016
Enhanced triple-phase boundary density in infiltrated electrodes for solid oxide fuel cells demonstrated by high-resolution tomography journal November 2014
The fractal nature of the three-phase boundary: A heuristic approach to the degradation of nanostructured solid oxide fuel cell anodes journal August 2017
High-throughput 3D reconstruction of stochastic heterogeneous microstructures in energy storage materials journal January 2019
Reconstruction of relaxation time distribution from linear electrochemical impedance spectroscopy journal June 2015
Is 2D stereological method good enough for quantification of solid oxide fuel cell electrode microstructure? journal September 2016
Simulation of sintering kinetics and microstructure evolution of composite solid oxide fuel cells electrodes journal February 2012
A particle-layer model for solid-oxide-full-cell cathodes with different structures journal July 2010
Factors Governing Oxygen Reduction in Solid Oxide Fuel Cell Cathodes journal October 2004
A Highly Efficient and Robust Nanofiber Cathode for Solid Oxide Fuel Cells journal November 2016
Equivalent Circuit Approximation to Porous Mixed‐Conducting Oxygen Electrodes in Solid‐State Cells journal January 1998

Cited By (1)

Sintering behaviors of micron-sized features based on 3D reconstruction journal August 2019