Analysis of atomic arrangement structure of novel nanoparticles and thin films of a non-long periodic system

2018 Fiscal Year Final Research Report

• Project/Area Number: 15K04616
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials chemistry
• Research Institution: National Institute for Materials Science
• Principal Investigator: Sakata Osami 国立研究開発法人物質・材料研究機構, 技術開発・共用部門, ステーション長 (40215629)
• Research Collaborator: Song Chulho ; Kumara Loku Singgappulige Rosantha ; Chen Yanna ; Yang Anli ; Okkyun Seo ; Hiroi Satoshi ; Kim Jaemyung ; Akhil Tayal ; Natalia Palina
• Project Period (FY): 2015-04-01 – 2019-03-31
• Keywords: 金属ナノ粒子 / 酸化物薄膜 / シンクロトロンX線 / 原子配列構造 / 電子構造 / X線全散乱 / X線分光 / 構造秩序

Outline of Final Research Achievements

We investigated the relationship of the atomic arrangement and the electronic structure of metal nanoparticles, nanostructures and oxide thin film materials with the functions and properties. After analyzing the average structure, local structure and electronic structure of nanometer-sized metal particles (Ru, Rh, Pd-Pt, Rh-Cu) with hydrogen storage characteristics and CO oxidation performance using synchrotron X-ray techniques, we discussed the correlation with the characteristic properties. Moreover, the electronic state was investigated also about the metal nanostructural materials. Furthermore, the structural order and the electronic state of the oxide thin films were examined, and the relationship with the optical characteristics was discussed. The utilized synchrotron X-ray techniques were high energy X-ray total scattering, Rietveld analysis, tpair distribution function, reverse Monte Carlo modeling, X-ray absorption fine structure, hard X-ray photoelectron spectroscopy.

Free Research Field

放射光ナノ構造科学

Academic Significance and Societal Importance of the Research Achievements

調べたナノ粒子、ナノ構造体、酸化物薄膜は工学的、あるいは産業応用的に重要な材料である。本研究で得られた、原子配列構造や電子構造の知見を材料の作成にフィードバックすることで、それらの材料の機能を向上させることに役立つと期待している。