Low temperature oxidation catalysts based on the formation of effective boundary between noble metal and low-dimensional metal oxide

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420790
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Catalyst/Resource chemical process
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Tomita Atsuko 国立研究開発法人産業技術総合研究所, 無機機能材料研究部門, 主任研究員 (70392636)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 貴金属 / ナノ界面制御 / 低温酸化触媒

Outline of Final Research Achievements

The purpose of this study is to fabricate highly active catalysts for low temperature oxidation based on the formation of effective boundary between noble metal and metal oxide. Pt-FeOx/γ-Al2O3 with our original preparation method, the water-pretreatment, was employed as a base catalyst system. From structural studies, the Fe moiety in the FeOx/γ-Al2O3 samples with low Fe loadings (below 9wt%) were suggested to take the form in which an isolated iron-oxide monomers are supported on theγ-Alumina surface. Catalytic CO oxidation below 120°C was maximized at the Fe content where Fe to Pt molar ratio was 1, whereas above 120°C the conversion increased monotonically with Fe content. In the case of propane oxidation, Fe contents lowered the oxidation temperature. This is probably due to the promotion of C-H dissociative adsorption of propane on Pt during the oxidation reaction.

Free Research Field

触媒の構造と反応