Abstract
Measurements of contact potential difference (CPD) and effluent oxygen concentration were used to monitor oscillations in the surface state and reaction rate during the oxidation of hydrogen over a nickel plate in a continuous flow reactor. CPD measurements indicate that the system oscillates between and active state in which the reduced surface is covered mainly by chemisorbed oxygen and a less active oxidized state. Heat and mass transfer limitations affect the shape, amplitude and period of the oscillations. However, the oscillations do not disappear when transport limitations become negligible.
| Original language | English |
|---|---|
| Pages (from-to) | 374-377 |
| Number of pages | 4 |
| Journal | Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics |
| Volume | 84 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1980 |
| Externally published | Yes |