Fabrication of MnO<sub>2</sub>-based Solid pH Electrode

SHU You-qin, YUAN Dao-qiang. Fabrication of MnO2-based Solid pH Electrode[J]. Analysis and Testing Technology and Instruments, 2000, (2): 109-111.

Citation:

SHU You-qin, YUAN Dao-qiang. Fabrication of MnO2-based Solid pH Electrode[J]. Analysis and Testing Technology and Instruments, 2000, (2): 109-111.

Citation:

SHU You-qin, YUAN Dao-qiang. Fabrication of MnO2-based Solid pH Electrode[J]. Analysis and Testing Technology and Instruments, 2000, (2): 109-111.

Fabrication of MnO₂-based Solid pH Electrode

Abstract

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.

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