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Nickel-Cermet Electrodes for High-Temperature Electrochemical Devices Made Using Nanomaterials
被引:3
作者:
Kuzin, B. L.
[1
]
Beresnev, S. M.
[1
]
Osinkin, D. A.
[1
]
Bogdanovich, N. M.
[1
]
Kotov, Yu. A.
[2
]
Bagazeev, A. V.
[2
]
机构:
[1] Russian Acad Sci, Ural Div, Inst High Temp Electrochem, Ekaterinburg 620219, Russia
[2] Russian Acad Sci, Ural Div, Inst Electrophys, Ekaterinburg 620016, Russia
关键词:
nickel-cermet electrode;
nanomaterials;
solid oxide electrolyte;
solid-oxide fuel cells (SOFC);
electrochemical activity;
HIGH-PERFORMANCE;
SDC COMPOSITE;
FUEL-CELLS;
ANODE;
OXIDE;
CATHODES;
SOFCS;
D O I:
10.1134/S1023193510030043
中图分类号:
O646 [电化学、电解、磁化学];
学科分类号:
081704 ;
摘要:
Characteristics of nickel-cermet anodes obtained from weakly aggregated NiO nanopowders made by wire electric blasting (NiO/WEB) were studied. Electrodes made of NiO/WEB nanopowders have low sheet resistance (<0.1 Ohm) and high electrochemical activity (R(eta) - 0.06-0.09 Ohm cm(2) at 850-900 degrees C). Prolonged studies of symmetric cells of the (0.9H(2) + 0.1H(2)O) Ni-SSZ + CeO(2)/YSZ/CeO(2) + Ni-SSZ (0.9H(2) + 0.1H(2)O) type at the temperature of 850 degrees C showed that the electrodes preserve sufficiently high activity (R(eta) < 0.1 Ohm cm(2)) for 1000 h. Using a NiO-WEB powder allows not performing presynthesis of nickel-cermet and decreasing the anode baking temperature to 1200 degrees C.
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页码:278 / 284
页数:7
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