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用磁控溅射法在钛基体表面溅射TiB2中间层,以此为基体用热分解法制备了(Ru,Ti)氧化物涂层钛电极,用SEM、XRD、电化学工作站等手段对样品的性能和结构进行了表征。结果表明,含TiB2中间层的钛阳极表面涂层具有非连续状裂纹结构,钛基体和氧化物涂层的界面呈现紧密结合的状态,其电催化析氯性能优于传统钛阳极。选用TiB2中间层作为催化电极的载体,可改善基体和氧化物涂层的结合,延缓涂层的脱落,可避免基体和涂层间生成TiO2电阻膜,延缓涂层的失效;加入TiB2中间层可降低内阻,改善电子的传输能力,降低析氯电位,提高电极的催化活性和节能降耗。
The TiB2 intermediate layer was sputtered on the surface of titanium substrate by magnetron sputtering method. The (Ru, Ti) oxide coated titanium electrodes were prepared by thermal decomposition method. The samples were characterized by SEM, XRD and electrochemical workstation The performance and structure were characterized. The results show that the titanium anode coating with TiB2 intermediate layer has a discontinuous crack structure and the interface between the titanium substrate and the oxide coating is tightly bonded, and the electrocatalytic chlorine evolution performance is better than that of the traditional titanium anode. The use of TiB2 intermediate layer as a carrier for the catalytic electrode can improve the combination of the substrate and the oxide coating, retard the detachment of the coating, avoid the formation of a TiO2 resistive film between the substrate and the coating, and delay the failure of the coating. The addition of the TiB2 intermediate layer Reduce internal resistance, improve the electronic transmission capacity, reduce the chlorine potential, improve the electrode catalytic activity and energy saving.