Abstract
The influences of the reductant concentration of NaBH4 and the quantity of Pd loading on the active surface area and the sensitivity of the Pd/Nafton electrodes prepared by an impregnation-reduction method in detecting oxygen were investigated in this study. The Pd/Nafion electrodes with Pd loading of 6.90 mg cm-2 obtained at 0.006 MPd(NH3)4Cl2 and 0.06 MNaBH4 show maximum sensitivities of 0.0198 μA ppm-1 and 0.0280 μA ppm-1 obtained in O2 concentration regions of 0∼5000 and 5000∼50000ppm, respectively. A sensing model was also proposed to illustrate the sensing phenomenon.
| Original language | English |
|---|---|
| Pages (from-to) | 33-38 |
| Number of pages | 6 |
| Journal | Journal of New Materials for Electrochemical Systems |
| Volume | 2 |
| Issue number | 1 |
| Publication status | Published - 1999 |
| Externally published | Yes |
Keywords
- Impregnation-reduction method
- Nafion
- Oxygen
- Pd
- Sensor
ASJC Scopus subject areas
- Electrochemistry
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Materials Chemistry