氧化锰型固态pH电极的研制

Fabrication of MnO2-based Solid pH Electrode

中文关键词:  氧化锰  pH电极

英文关键词:MnO₂  pH electrode

中文摘要:

      以超细MnO₂粉末为敏感材料制备了两种固体pH电极.涂层电极可以在水溶液中呈现出快速稳定的pH响应。响应的线性范围为pH2～12,响应灵敏度为-81.5mV/pH.印刷电极的线性响应范围要略窄于涂层电极,但响应灵敏度近似.

英文摘要:

      Ultrafine MnO₂ powders were used to fabricate two kinds of solid pH electrodes. The electrode coated with a thin film of MnO₂ could exhibit a fast,stable pH-response in aqueous solution. A linear pH-potential curve was observed over the range of pH 2～12 with a sensitivity of -81.5 mV/pH at room temperature. However,the electrode fabricated with screen-printed method had a little poor than the coated electrode.