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首页> 外文会议>5th International Symposium on Carbonate Fuel Cell Technology, 5th, Oct 18-19, 1999, Honolulu, HL >CATHODIC PERFORMANCE OF IN SITU OXIDIZED Ni+Al ALLOYS IN MOLTEN Li + Na CARBONATE EUTECTIC
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CATHODIC PERFORMANCE OF IN SITU OXIDIZED Ni+Al ALLOYS IN MOLTEN Li + Na CARBONATE EUTECTIC

机译：Li +碳酸钠共晶中原位氧化Ni + Al合金的阴极性能

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摘要

The present work describes the electrochemical behavior of in situ oxidized (0.95Ni + 0.05Al) and (0.85Ni + 0.15Al) alloys for the oxygen reduction in (Li+Na)carbonate eutectic. Thin films of Ni+Al alloys were prepared on gold substrates by a sputtering method and subjected to in situ oxidation in the melt at 923K. Voltammetric behavior of the oxides is compared with that of the non-alloyed Ni to show that Ni+Al alloys with low content of Al are electrochemically active for the oxygen reduction and stable in the melt. Additionally it has been shown that the fractal approach can be successfully applied to simulate the rough surfaces of (Ni/Au) and (Ni+Al/Au) electrodes in molten carbonates. On the basis of data obtained this way, higher stability of oxide film at the (Ni+Al/Au) electrodes in comparison to NiO electrodes has been demonstrated.
机译：本工作描述了原位氧化的（0.95Ni + 0.05Al）和（0.85Ni + 0.15Al）合金在（Li + Na）碳酸盐共晶中氧还原的电化学行为。通过溅射方法在金基底上制备Ni + Al合金薄膜，并在923K的熔体中进行原位氧化。将氧化物的伏安行为与非合金Ni的伏安行为进行了比较，结果表明，具有低Al含量的Ni + Al合金具有氧还原的电化学活性，并且在熔体中稳定。此外，已经表明，分形方法可以成功地应用于模拟熔融碳酸盐中（Ni / Au）和（Ni + Al / Au）电极的粗糙表面。基于这样获得的数据，已经证明了与NiO电极相比，在（Ni + Al / Au）电极处的氧化膜具有更高的稳定性。

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