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在BMIC离子液体中利用恒电压电沉积的方法在Pt基体上制备出表面平整且相对比较致密的Ir层。利用扫描电子显微镜和能谱仪(EDS)对Ir层的表面形貌和成分进行了分析。结果表明:在纯BMIC离子液体中恒电压电沉积时无法获得Ir层;加入乙二醇和提高温度均能够有效提高IrCl3在BMIC离子液体中的溶解度,从而有利于电沉积获得Ir层;Ir层表面随着BMIC与乙二醇的摩尔比的增大而变得粗糙;过低的恒电压电沉积时无法获得Ir层,而过高的恒电压又会使获得的Ir层非常疏松;较低的电沉积温度得不到Ir层,而较高的电沉积温度所获得的Ir层裂纹较大。
In the BMIC ionic liquid by constant voltage electrodeposition method on the Pt substrate prepared flat and relatively dense surface Ir layer. The surface morphology and composition of the Ir layer were analyzed by scanning electron microscopy and energy dispersive spectroscopy (EDS). The results show that the Ir layer can not be obtained by galvanostatic deposition in a pure BMIC ionic liquid. The addition of ethylene glycol and increasing the temperature can effectively increase the solubility of IrCl3 in the BMIC ionic liquid and thus facilitate the electrodepositing of the Ir layer. The surface of the Ir layer With the increase of the molar ratio of BMIC to ethylene glycol becomes rough; too low constant voltage electrodeposition can not get Ir layer, and too high constant voltage will make the Ir layer obtained will be very loose; lower The Ir deposition temperature was not obtained, while the higher electrodeposition temperature resulted in larger cracks in the Ir layer.