论文部分内容阅读
实验针对酸性电解体系中阳极的析氧过程,研究制备出适应于在此类介质中使用的Ti/SnO2+Sb2O4/PbO2阳极。采用SEM、XRD法表征了阳极的表面形貌、组成元素和元素化学态;并用快速电极寿命法测试该阳极在65℃、1.0mol/LH2SO4溶液中的使用寿命通过对电极极化曲线的测试,考察其电催化性能;将试样放大后在酸性电解体系中进行模拟电解生产试验。结果表明,此类阳极与传统铅阳极相比,在提高电流效率,降低单耗以及提高阴极产品纯度方面效果显著,且降低了阳极制作成本。
In the experiment, the anodic oxygen evolution process in acidic electrolysis system was studied and a Ti / SnO2 + Sb2O4 / PbO2 anode suitable for use in such a medium was prepared. The surface morphology, compositional elements and elemental chemical states of the anode were characterized by SEM and XRD. The service life of the anode in the solution of 1.0 mol / LH 2 SO 4 at 65 ℃ was tested by the rapid electrode life test. By testing the polarization curve of the electrode, The electrocatalytic performance was investigated. After the sample was enlarged, the simulated electrolysis production test was carried out in acidic electrolysis system. The results show that compared with the traditional lead anodes, these anodes are effective in improving the current efficiency, reducing the unit consumption and improving the purity of the cathode products, and the anode production cost is reduced.