论文部分内容阅读
钛基IrO2-Ta2O5涂层阳极的形状分别是板状和扩张网。采用涂覆了H2IrCl6.H2O的盐酸溶液和TaCl5乙醇溶液的混合溶液再进行热分解制备得到IrO2-Ta2O5涂层。分别采用SEM,EDX,CV和加速寿命测试对电极的微观结构和电化学性能进行分析。相对板状电极而言,由于较少的活性物质IrO2在电极表面结晶析出,扩张网状电极具有更低的电化学催化活性。但是由于表面的裂纹较为细密、表面活性元素分布也较为均匀,并且其纵截面的形状更有利于电解析出的气泡排出,扩张网状电极具有更长的加速寿命。
Titanium-based IrO2-Ta2O5 coated anodes were plate-shaped and dilated, respectively. An IrO2-Ta2O5 coating was obtained by thermal decomposition using a mixed solution of hydrochloric acid solution of H2IrCl6.H2O and TaCl5 ethanol solution. The microstructure and electrochemical properties of the electrode were analyzed by SEM, EDX, CV and accelerated life testing. Compared with the plate electrode, the expanded electrode has a lower electrochemical catalytic activity because less active material IrO2 crystallizes on the electrode surface. However, due to the surface cracks more closely, the distribution of surface active elements is also more uniform, and the shape of its longitudinal section is more conducive to the discharge of electrolyzed bubbles, expanded mesh electrode has a longer accelerated life.