Sulphur poisoning of alumina supported Rh catalyst during dry reforming of methane

- Rh on La-γ-Al2O3 is highly stable and active catalyst for CH4 dry reforming.
- Severe inhibition of dry reforming at 800 °C upon sulphur addition already at 1 ppmv.
- Transient carbon formation on Rh induced by S addition.
- Reversible S-poisoning effect.