Effect of the reduction condition on the catalytic activity for steam reforming process using Ni doped LaAlO3 nano-particles

• La(Al0.5Ni0.5)O3 perovskite catalyst was deposited by chemical solution deposition.
• Catalytic activity of the Ni doped LaAlO3 catalyst was higher than that of the conventional Ni/LaAlO3 catalyst.
• Reduction condition was one of the key factors to determine the catalytic activity.

Ni doped lanthanum aluminate (LAO) was prepared by chemical solution deposition, and the Ni component was generated on the surface of Ni doped LAO by the H2 reduction process. The obtained Ni doped LAO was perovskite mono-phase. The specific surface area and the reduction degree of the obtained catalyst was controlled by control the reduction conditions. As a result, almost the all Ni component near the surface was reduced by H2 reduction process even in the case of low H2 reduction temperature, although the catalytic activity changed depends on the reduction temperature. Thus, we concluded that the reduced perovskite part was also important factor to determine the catalytic activity in the case of Ni doped LAO catalyst. The highest catalytic activity (H2 yield) was attained under the 873 K reduction temperature.

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