Fe:NiOx薄膜作为太阳能光电化学制氢的阳极催化膜,是在O2/Ar气氛中,利用射频反应磁控溅射方法制备的.O2含量在10%~40%范围内变化.通过对氧过电位、结构、形貌、组分和透过率的测定,来确定O2含量与上述电化学及物理性能的关系.当O2含量为40%,电流密度为8mA/cm2时的氧过电位为250mV.当O2含量增大,过电势减小,而透过率却有所降低,这与膜的结构和组分有关.
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