研制了一种能在NaCl水溶液中电解生产NaClO的低成本镍钴锰锡复合氧化物涂层阳极.考察了涂层中不同SnO2摩尔分数对电极表面形貌的影响.分别研究了不同锡含量涂层电极在氯化钠溶液中和在硫酸溶液中的电流密度随析氯电位和析氧电位的变化情况以及电极的强化寿命.结果表明,电极的表面形貌受锡含量的影响,当涂层中锡的摩尔分数为14.28%时,涂层最致密;而且,在此含量下,溶液中的电流密度随析氯电位以及析氧电位的变化率较小,电极寿命也最长.当在基体和涂层之间加上导电中间层时,电极寿命超过110 h.使用该电极电解氯化钠溶液,所得次氯酸钠的生成速率为19.14 mg/(L·cm2·min).
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