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采用电化学阳极氧化和高温碳酸盐氧化两种方法制备IrO2 - pH微电极 ,其特点是对氢离子响应快、线性范围宽、机械性能好、具有长期稳定性 .考察了该电极的 pH响应特性、化学成分、机械性能等 .结果表明 ,这种IrO2 -pH微电极适用于钢筋 /混凝土界面 pH值的原位测量
Electrochemical anodic oxidation and high temperature carbonate oxidation are two methods to prepare IrO2 - pH microelectrode, which is characterized by fast response to hydrogen ions, a wide linear range, good mechanical properties, and long - term stability. The electrode pH response Properties, chemical composition, mechanical properties, etc. The results show that this IrO2-pH microelectrode is suitable for in-situ measurement of pH value at the interface of steel bar / concrete