Novel method for insertion of Pt/CeZrO2 nanoparticles into mesoporous SBA-16 using hydrothermal treatment

Hiroaki Yotou, Takumi Okamoto, Miho Ito, Tohru Sekino, Shun Ichiro Tanaka

研究成果: Article査読

12 被引用数 (Scopus)

抄録

An investigation was performed to evaluate the possibility of using hydrothermal treatment for inserting Pt/CeZrO2 nanoparticles into the mesopores of the previously reported SBA-16 mesoporous silica. The results showed that the Pt/CeZrO2 nanoparticles were successfully inserted into the mesopores of SBA-16 by the hydrothermal treatment, and the highly ordered mesostructure of SBA-16 was retained after the insertion of the nanoparticles. The obtained material was used as a catalyst for the CO oxidation reaction. The catalytic activity and thermal stability of Pt/CeZrO2, inserted via hydrothermal treatment, were higher than those of the mixture of Pt/CeZrO2 and SBA-16. Specifically, the temperature at which 50% CO oxidation was achieved after the catalyst was annealed at 800 C was 290 C for the sample prepared via hydrothermal treatment at 140 C. This temperature at which 50% CO oxidation was achieved is significantly lower than 480 C required for the catalyst prepared via simple mixing.

本文言語English
ページ(範囲)137-144
ページ数8
ジャーナルApplied Catalysis A: General
458
DOI
出版ステータスPublished - 2013 5 10
外部発表はい

ASJC Scopus subject areas

  • 触媒
  • プロセス化学およびプロセス工学

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