Visualizing adsorption/reaction of gas molecules on catalytic surface by energy-filtering environmental TEM

2014 Fiscal Year Final Research Report

• Project/Area Number: 25630280
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties
• Research Institution: Nagoya University
• Principal Investigator: MUTO Shunsuke 名古屋大学, エコトピア科学研究所, 教授 (20209985)
• Research Collaborator: ARAI Shigeo 名古屋大学, エコトピア科学研究所, 特任准教授 ; 山本 悠太 名古屋大学, エコトピア科学研究所, 技術職員 ; 樋口 公孝 名古屋大学, エコトピア科学研究所, 技術職員
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 微粒子触媒 / 電子顕微鏡 / 電子分光

Outline of Final Research Achievements

The purpose of this study is to visulaize gas molecules adsorbed on a ceramics-supporting fine metal particle surface, using the Reaction Science Ultra-High Voltage Scanning Transmission Electron Microscope in Nagoya University and to identify the reaction active site.
We applied an energy-filtering spectral imaging technique to Au-Ni bimetallic fine particles supported by SiO2 and were successful in visualizing NO and CO gas adsorption on their surface. In addition, we applied a multivariate analysis to the obtained data, resolving the spectrum of the gas molecules for identifying which gas specie is actually adsorbed. A research paper reporting the results above is now in preparation.

Free Research Field

ナノ材料科学