【摘要】 利用热化学方法合成了NaFeO2。实验在14mol/L NaOH溶液中分别采用ClO-作为氧化剂和粉末微电极技术对3种Fe(Ⅲ)化合物———Fe2O3、Fe(OH)3和NaFeO2的化学行为以及电化学行为进行了研究,结果表明:在本实验条件下,Fe2O3没有任何化学活性和电化学活性;Fe(OH)3和NaFeO2可以被ClO-氧化生成高铁酸盐,Fe(OH)3发生电化学氧化生成高铁酸盐的反应速度非常微弱并且不能与析氧反应(OER)区分;NaFeO2对OER表现出较高的超电势,并具有选择性电化学生成高铁酸盐的性能,从而认为NaFeO2有希望作为二次高铁电池的充电起始物质。实验考察了温度对其氧化过程的影响。更多还原

【Abstract】 NaFeO₂ was synthesized at the condition of high temperature and strong basic environment,from which,the faint character of Fe₂O₃ as an acidic oxide was proved.Hypochlorite and the technique of powder-microelectrode were used to investigate the chemical and electrochemical behavior of Fe₂O₃,Fe（OH）₃ and NaFeO₂ in 14mol/L NaOH solution,respectively.The results proved that ferrate could be made from Fe（OH）₃ and NaFeO₂ while Fe₂O₃ did not exhibit any chemical and electrochemical activity for the generation of ferrate.Furthermore,the selective electro-generation of ferrate could be realized on the electrode of NaFeO₂ from 293K to 333K in the same solution.更多还原