Nano-sized BaCe0.9Y0.1O3 - delta (BCY10) protonic conductor powders were used to prepare Ni-BCY10 cermets for anode-supported intermediate temperature solid oxide fuel cells. A new wet-chemical route was developed starting from Ni nitrates as precursors for NiO. BCY10 powders were Suspended in a Ni nitrate aqueous Solution that was evaporated to allow NiO precipitation on the BCY grains, obtaining NiO-BCY10 cermets. To obtain the final Ni-BCY10 anodes, pellets were reduced in dry H-2 at 700 degrees C. The structural and microstructural properties of the pellets were investigated using X-ray diffraction analysis and field emission scanning electron microscopy. A homogeneous dispersion of perovskite and nickel phases was observed. The chemical stability of the anodes was evaluated under wet H-2 and CO2 atmosphere at 700 degrees C. The electrical properties of the Ni-BCY10 pellets were evaluated using electrochemical impedance spectroscopy measurements. The Ni-BCY10 cermet electrodes show...ed large electronic conductivity, demonstrating percolation through the Ni particles, and low area specific resistance at the BCY10 interface. These characteristics make the cermet suitable for application in BCY-based protonic fuel cells. The developed chemical route offers a simple and low-cost procedure to obtain promising high performance anodes.
TY - JOUR
AU - Chevallier, Laure
AU - Žunić, Milan
AU - Esposito, Vincenzo
AU - di Bartolomeo, Elisabetta
AU - Traversa, Enrico
PY - 2009
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/362
AB - Nano-sized BaCe0.9Y0.1O3 - delta (BCY10) protonic conductor powders were used to prepare Ni-BCY10 cermets for anode-supported intermediate temperature solid oxide fuel cells. A new wet-chemical route was developed starting from Ni nitrates as precursors for NiO. BCY10 powders were Suspended in a Ni nitrate aqueous Solution that was evaporated to allow NiO precipitation on the BCY grains, obtaining NiO-BCY10 cermets. To obtain the final Ni-BCY10 anodes, pellets were reduced in dry H-2 at 700 degrees C. The structural and microstructural properties of the pellets were investigated using X-ray diffraction analysis and field emission scanning electron microscopy. A homogeneous dispersion of perovskite and nickel phases was observed. The chemical stability of the anodes was evaluated under wet H-2 and CO2 atmosphere at 700 degrees C. The electrical properties of the Ni-BCY10 pellets were evaluated using electrochemical impedance spectroscopy measurements. The Ni-BCY10 cermet electrodes showed large electronic conductivity, demonstrating percolation through the Ni particles, and low area specific resistance at the BCY10 interface. These characteristics make the cermet suitable for application in BCY-based protonic fuel cells. The developed chemical route offers a simple and low-cost procedure to obtain promising high performance anodes.
PB - Elsevier, Amsterdam
T2 - Solid State Ionics
T1 - A wet-chemical route for the preparation of Ni-BaCe0.9Y0.1O3-delta cermet anodes for IT-SOFCs
EP - 720
IS - 9-10
SP - 715
VL - 180
DO - 10.1016/j.ssi.2009.03.005
ER -
@article{
author = "Chevallier, Laure and Žunić, Milan and Esposito, Vincenzo and di Bartolomeo, Elisabetta and Traversa, Enrico",
year = "2009",
abstract = "Nano-sized BaCe0.9Y0.1O3 - delta (BCY10) protonic conductor powders were used to prepare Ni-BCY10 cermets for anode-supported intermediate temperature solid oxide fuel cells. A new wet-chemical route was developed starting from Ni nitrates as precursors for NiO. BCY10 powders were Suspended in a Ni nitrate aqueous Solution that was evaporated to allow NiO precipitation on the BCY grains, obtaining NiO-BCY10 cermets. To obtain the final Ni-BCY10 anodes, pellets were reduced in dry H-2 at 700 degrees C. The structural and microstructural properties of the pellets were investigated using X-ray diffraction analysis and field emission scanning electron microscopy. A homogeneous dispersion of perovskite and nickel phases was observed. The chemical stability of the anodes was evaluated under wet H-2 and CO2 atmosphere at 700 degrees C. The electrical properties of the Ni-BCY10 pellets were evaluated using electrochemical impedance spectroscopy measurements. The Ni-BCY10 cermet electrodes showed large electronic conductivity, demonstrating percolation through the Ni particles, and low area specific resistance at the BCY10 interface. These characteristics make the cermet suitable for application in BCY-based protonic fuel cells. The developed chemical route offers a simple and low-cost procedure to obtain promising high performance anodes.",
publisher = "Elsevier, Amsterdam",
journal = "Solid State Ionics",
title = "A wet-chemical route for the preparation of Ni-BaCe0.9Y0.1O3-delta cermet anodes for IT-SOFCs",
pages = "720-715",
number = "9-10",
volume = "180",
doi = "10.1016/j.ssi.2009.03.005"
}
Chevallier, L., Žunić, M., Esposito, V., di Bartolomeo, E.,& Traversa, E.. (2009). A wet-chemical route for the preparation of Ni-BaCe0.9Y0.1O3-delta cermet anodes for IT-SOFCs. in Solid State Ionics
Elsevier, Amsterdam., 180(9-10), 715-720.
https://doi.org/10.1016/j.ssi.2009.03.005
Chevallier L, Žunić M, Esposito V, di Bartolomeo E, Traversa E. A wet-chemical route for the preparation of Ni-BaCe0.9Y0.1O3-delta cermet anodes for IT-SOFCs. in Solid State Ionics. 2009;180(9-10):715-720.
doi:10.1016/j.ssi.2009.03.005 .
Chevallier, Laure, Žunić, Milan, Esposito, Vincenzo, di Bartolomeo, Elisabetta, Traversa, Enrico, "A wet-chemical route for the preparation of Ni-BaCe0.9Y0.1O3-delta cermet anodes for IT-SOFCs" in Solid State Ionics, 180, no. 9-10 (2009):715-720,
https://doi.org/10.1016/j.ssi.2009.03.005 . .
