Zobrazeno 1 - 10
of 30
pro vyhledávání: '"John R. Izzo"'
Publikováno v:
Energy Technology. 8:2000172
Publikováno v:
International Journal of Hydrogen Energy. 38:13774-13780
Gas leakage often occurs in planar solid oxide fuel cell (SOFC) stacks due to small pressure differentials (2–3 psi) between the process flows and external pressure. This gas leakage can initiate localized burning and degradation mechanisms, which
Three-dimensional microstructural changes in the Ni–YSZ solid oxide fuel cell anode during operation
Autor:
Yong S. Chu, William M. Harris, George J. Nelson, Jan Van herle, Kyle N. Grew, Wilson K. S. Chiu, Jeffrey J. Lombardo, Steve Wang, Antonin Faes, Aïcha Hessler-Wyser, Anil V. Virkar, John R. Izzo
Publikováno v:
Acta Materialia. 60:3491-3500
Microstructural evolution in solid oxide fuel cell (SOFC) cermet anodes has been investigated using X-ray nanotomography along with differential absorption imaging. SOFC anode supports composed of Ni and yttria-stabilized zirconia (YSZ) were subjecte
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
Publikováno v:
Electrochemistry Communications, Vol 13, Iss 6, Pp 586-589 (2011)
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
Autor:
George J. Nelson, Yong S. Chu, Wilson K. S. Chiu, Piero Pianetta, John R. Izzo, Joy C. Andrews, William M. Harris, Jae-mock Yi, Yijin Liu, Kyle N. Grew
Publikováno v:
ECS Transactions. 35:1315-1321
Reduction-oxidation (redox) cycling of the nickel electrocatalyst phase in the solid oxide fuel cell (SOFC) anode can lead to performance degradation and cell failure. A greater understanding of nickel redox mechanisms at the microstructural level is
Publikováno v:
Journal of Power Sources. 195:7930-7942
Advanced imaging and characterization methods have permitted the 3-D and phase-specific reconstruction of dense and opaque samples with features that have a length scale on the order of tens of nanometers and comprised of materials with large X-ray m
Publikováno v:
ECS Transactions. 25:1861-1870
Three-dimensional reconstruction methods, such as the non-destructive transmission x-ray imaging with tomographic reconstruction, have enabled the micro- to nano-scale characterization of the porous solid oxide fuel cell electrode structures. This wo
Publikováno v:
ECS Transactions. 13:123-136
Further improvements of the solid oxide fuel cell (SOFC) performance, reliability, and durability are necessary for the SOFC to become an attractive option for wide spread use. If we are to meet these challenges, an advanced understanding of the mate
Autor:
Wilson K. S. Chiu, John R. Izzo, Abhijit S. Joshi, Wenbing Yun, Siew H. Wang, Andrei Tkachuk, Kyle N. Grew
Publikováno v:
ECS Transactions. 13:1-11
X-ray computed tomography (XCT) is applied to non-destructively image the three-dimensional (3D) microstructure of a solid oxide fuel cell (SOFC) with a solid yttria-stabilized zirconia (YSZ) electrolyte and porous nickel and YSZ (Ni-YSZ) anode. The
Publikováno v:
Journal of Power Sources. 176:200-206
A design model is a necessary tool to understand the gas transport phenomena that occurs in a tubular solid oxide fuel cell (SOFC). This paper describes a computational model, which studies the gas flow through an anode-supported tubular SOFC and the