炭素資源からの水素製造を指向した新規触媒の開発

抄録

In this research project, we attempted to prepare the novel catalyst for steam reforming process by chemical solution deposition. Perovskite material such as barium titanate (BTO) has been widely incorporated into the long life catalyst for steam reforming process. However, this material is well known as the low surface area, resulting in the low catalytic activity. In our previous study, BTO hollow particles with high surface area was prepared by template method, and this material has relatively good catalytic activity. However, the preparation method for the BTO hollow particle was quite complicate process for mass production. To solve this subject, we attempted to prepare the barium titanate with high surface area be one step chemical solution deposition in this research. We selected SiO₂ nano-particle as a core particle, and barium titanate was nano-coated on a core-particle using double alkoxide precursor solution. As a result, BTO/SiO₂ core-shell hybrid particle with 33 m²/g surface area was obtained by one step chemical solution deposition. Subsequently, metal component such as Ni and Co was loaded on a obtained BTO/SiO₂ hybrid particle to estimate the catalytic activity for the ethanol steam reforming process. As a result, the catalytic activity of the obtained hybrid materials was nearly equal to that of the BTO hollow particle.