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@article{Jamil:2016:10.1016/j.lihydene.2016.04.061,
author = {Jamil, Z and Ruiz-Trejo, E and Boldrin, P and Brandon, NP},
doi = {10.1016/j.lihydene.2016.04.061},
journal = {International Journal of Hydrogen Energy},
pages = {9627--9637},
title = {Anode fabrication for solid oxide fuel cells: Electroless and electrodeposition of nickel and silver into doped ceria scaffolds},
url = {http://dx.doi.org/10.1016/j.lihydene.2016.04.061},
volume = {41},
year = {2016}
}
TY - JOUR
AB - A novel fabrication method using electroless and electrodeposited Ni/Ag/GDC for SOFC anodes is presented. First a porous Ce0.9Gd0.1O2−x (GDC) scaffold was deposited on a YSZ electrolyte by screen printing and sintering. The scaffold was then metallized with silver using Tollens' reaction, followed by electrodeposition of nickel from a Watt's bath. The electrodes (Ni/Ag/GDC) were tested in both symmetrical and fuel cell configurations. The microstructures of the Ni/Ag/GDC anodes were analyzed using scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDX). Nano-particles of Ni formed in the porous GDC scaffold provided triple phase boundaries (TPB). The electronic conductivity of the Ni/Ag/GDC (3.5/24.7/71.8 vol%) electrode was good even at relatively low Ni volume fractions. The electrochemical performance was examined in different concentrations of humidified hydrogen (3% H2O) and over a range of temperatures (600–750 °C). The total area specific resistance (ASR) of the anode at 750 °C in humidified 97 vol% H2 was 1.12 Ω cm2, with low-frequency polarization (R_l) as the largest contributor. The electrodes were successfully integrated into a fuel cell and operated in both H2 and syngas.
AU - Jamil,Z
AU - Ruiz-Trejo,E
AU - Boldrin,P
AU - Brandon,NP
DO - 10.1016/j.lihydene.2016.04.061
EP - 9637
PY - 2016///
SN - 1879-3487
SP - 9627
TI - Anode fabrication for solid oxide fuel cells: Electroless and electrodeposition of nickel and silver into doped ceria scaffolds
T2 - International Journal of Hydrogen Energy
UR - http://dx.doi.org/10.1016/j.lihydene.2016.04.061
UR - http://hdl.handle.net/10044/1/31098
VL - 41
ER -
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