Comparison of SOFC cathode microstructure quantified using X-ray nanotomography and focused ion beam–scanning electron microscopy
| Autor: | Jan Van herle, Yong S. Chu, Marco Cantoni, Pietro Tanasini, Wilson K. S. Chiu, John R. Izzo, Yijin Liu, Christos Comninellis, William M. Harris, Jeffrey J. Lombardo, Piero Pianetta, Joy C. Andrews, George J. Nelson |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Materials science
business.industry Scanning electron microscope Analytical chemistry X-ray Microstructure Focused ion beam Cathode Characterization (materials science) law.invention lcsh:Chemistry lcsh:Industrial electrochemistry lcsh:QD1-999 law Electrochemistry Optoelectronics Solid oxide fuel cell Electron microscope business lcsh:TP250-261 |
| Zdroj: | Electrochemistry Communications, Vol 13, Iss 6, Pp 586-589 (2011) |
| ISSN: | 1388-2481 |
| Popis: | X-ray nanotomography and focused ion beam scanning electron microscopy (FIB‐SEM) have been applied to investigate the complex 3D microstructure of solid oxide fuel cell (SOFC) electrodes at spatial resolutions of 45 nm and below. The application of near edge differential absorption for x-ray nanotomography and energy selected backscatter detection for FIB–SEM enable elemental mapping within the microstructure. Using these methods, non‐destructive 3D x-ray imaging and FIB–SEM serial sectioning have been applied to compare three‐dimensional elemental mapping of the LSM, YSZ, and pore phases in the SOFC cathode microstructure. The microstructural characterization of an SOFC cathode is reported based on these measurements. The results presented demonstrate the viability of x-ray nanotomography as a quantitative characterization technique and provide key insights into the SOFC cathode microstructure. Keywords: Solid oxide fuel cell, Cathode, Elemental mapping, Transmission x-ray microscopy, X-ray nanotomography, Heterogeneous functional materials |
| Databáze: | OpenAIRE |
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