Fig. 1

The illustration of (a) Ni/CeO2 catalyst preparation by wetness to dryness impregnation method, (b) Preparation of activated spiral Al plate, and (c) Preparation of spiral-structured Ni/CeO2 catalyst by wash-coat method.

The illustration of (a) Ni/CeO2 catalyst preparation by wetness to dryness impregnation method, (b) Preparation of activated spiral Al plate, and (c) Preparation of spiral-structured Ni/CeO2 catalyst by wash-coat method.