Effects of the pretreatment of CuNi/SiO2 on ethanol steam reforming: Influence of bimetal morphology

- Calcination changed the alloy phase of the prepared CuNi/SiO2 catalysts into mixed phases of Cu-rich particles and NiO phase.
- ESR performance improved after further reduction, especially in the acetaldehyde steam reforming selectivity.
- The interface between NiO and Cu-rich nanoparticles may contribute to the enhanced acetaldehyde steam reforming selectivity.