用电沉积法制备钛基二氧化铅电极,以Nd(NO3)3、Ce(NO3)3、Gd2O3和Sm2O3分别对电极进行改性研究.采用XRD、SEM、EDS等方法考察稀土改性对PbO2电极物相结构、表面形貌、元素组成的影响规律.XRD分析表明,改性电极的表面晶型没有改变,并且PbO2表层的结晶纯度提高;SEM结果显示,改性电极的表面形貌有不同程度的改变;EDS结果表明,添加的稀土可能进入了PbO2表层内部.苯酚降解试验和强化寿命测试说明改性PbO2电极具有更好的电催化活性和稳定性.
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