caa a22 4500 475816307 CHVBK 20180406123811.0 cr unu---uuuuu 170329e20000201xx s 000 0 eng 10.1023/A:1003991529552 doi (NATIONALLICENCE)springer-10.1023/A:1003991529552 Durability and thermal cycling of Ni/YSZ cermet anodes for solid oxide fuel cells [Elektronische Daten] [S. Primdahl, M. Mogensen] The long-term properties of Ni/yttria stabilized zirconia (YSZ) cermet anodes for solid oxide fuel cells were evaluated experimentally. A total of 13 anodes of three types based on two commercial NiO powders were examined. The durability was evaluated at temperatures of 850 ∘C, 1000 ∘C and 1050 ∘C over 1300 to 2000 h at an anodic d.c. load of 300 mA cm−2 in hydrogen with 1 to 3% water. The anode-related polarization resistance, R P, was measured by impedance spectroscopy and found to be in the range of 0.05 to 0.7 Ω  cm2. After an initial stabilization period of up to 300 h, R P varied linearly with time within the experimental uncertainty. At 1050 ∘C no degradation was observed. At 1000 ∘C a degradation rate of 10 mΩ cm2 per 1000 h was found. The degradation rate was possibly higher at 850 ∘C. A single anode was exposed to nine thermal cycles from 1000 to below 100 ∘C at 100 ∘C h−1. An increase in R P of about 30 mΩ cm2 was observed over the first two cycles. For the following thermal cycles R P was stable within the experimental uncertainty. Kluwer Academic Publishers, 2000 cermet nationallicence durability nationallicence nickel nationallicence solid oxide fuel cell nationallicence thermal cycling nationallicence yttria stabilized zirconia nationallicence Primdahl S. Materials Research Department, Risø National Laboratory, 4000, Roskilde, Denmark aut Mogensen M. Materials Research Department, Risø National Laboratory, 4000, Roskilde, Denmark aut Journal of Applied Electrochemistry Kluwer Academic Publishers 30/2(2000-02-01), 247-257 0021-891X 30:2<247 2000 30 10800 https://doi.org/10.1023/A:1003991529552 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1003991529552 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Primdahl S. Materials Research Department, Risø National Laboratory, 4000, Roskilde, Denmark aut NATIONALLICENCE 700 1- Mogensen M. Materials Research Department, Risø National Laboratory, 4000, Roskilde, Denmark aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 30/2(2000-02-01), 247-257 0021-891X 30:2<247 2000 30 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer