碳酸盐熔盐燃料电池的NiO阴极溶解

来源期刊：中国有色金属学报2000年第1期

论文作者：阎立诚 吴炯文 陆文聪 丁益民 方建慧 陈念贻

文章页码：92 - 94

关键词：熔盐燃料电池；NiO；溶解度

Key words：molten carbonate fuel cell; NiO; solubility

摘    要：碳酸盐熔盐燃料电池阴极材料NiO在熔盐电解质中的溶解，是该技术能否实用的关键之一。实验表明，NiO在Li₂CO₃-Na₂CO₃熔盐中的溶解度在CO₂气氛和650℃条件下约为5×10^-6(摩尔分数)。LiFeO₂或NaFeO₂的添加虽能降低NiO浓度，但在CO₂气氛下会分解生成α-Fe₂O₃。

Abstract: The dissolution of NiO cathode is one of the "bottleneck" problems in the commercialization of molten carbonate fuel cell. It has been found that the solubility of NiO in Li₂CO₃-Na₂CO₃ melt is around 5×10^-6(mole fraction) under CO₂ atmosphere and 650℃. And the additives LiFeO₂ or NaFeO₂ for the hindrance of NiO dissolution in MCFC tend to react with CO₂ to form the α-Fe₂O₃ in the operation of MCFC.