Fuel Processing Technology, Vol.193, 94-101, 2019
Embedded Ni catalysts in Ni-O-Ce solid solution for stable hydrogen production from ethanol steam reforming reaction
Developing thermal resistant catalysts is of great interest in heterogeneous catalysis for high temperature catalytic reactions. In this study, embedded Ni catalysts were prepared by co-precipitation method, and were studied for hydrogen production from ethanol steam reforming. The catalysts were characterized by BET, XRD, TEM, H-2-TPR and Raman. The results showed that the more Ni embedding and the lower carbon deposits in the 20Ni@CeO2 catalyst exhibited a more stable hydrogen production performance, which should be originated from the more richness of active sites and metal-support interface than that in the 10Ni@CeO2 catalyst, and the more sintering-resistant than that in the 30Ni@CeO2 catalyst. The work provided a potential thermally stable embedded Ni catalyst for stable hydrogen production from ethanol.