为了提高电极的析氯活性并降低生产成本，采用热分解法制备低Ir掺杂的Ti/IrRuSnSbO_x电极，通过材料表征和电化学测试研究了电极的微观结构和电化学性能。结果表明，在0~30%范围内，随着Ir摩尔分数的增加，表面裂纹逐渐增多且加深，增大了内表面活性面积占比，而析氯活性和析氯效率均先升高后降低，其中，掺杂摩尔分数10%的电极具有最低的电荷转移电阻、最高的反应速率，电流密度为10 mA/cm²时析氯电位为1.118 V vs.SCE，析氯效率为99.6%。

In order to improve the chlorine evolution activity of the electrode and reduce the production cost, Ti/IrRuSnSbO_x electrode with low Ir-doping amount is prepared via thermal decomposition method, and its microstructure and electrochemical properties are investigated by means of material characterization and electrochemical tests.The results indicate that with the increasing Ir content in the range of 0%-30%, the surface cracks increase and deepen gradually, the active area ratio of the inner surface rises, while both the activity and efficiency of chlorine evolution increases firstly and decreases then.Among them, the electrode with 10% of Ir-doping content exhibits the lowest charge transfer resistance and the highest reaction rate.Its chlorine evolution potential is 1.118 V vs.SCE and chlorine evolution efficiency is 99.6% at a current density of 10 mA·cm^-2.

戚卉(1997-),女,硕士生,研究方向为钛阳极材料,854389491@qq.com。