Synthesis of transition metal atomsheets and creation of functions based on their two-dimensional structures

2022 Fiscal Year Final Research Report

• Project/Area Number: 21K19028
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 36:Inorganic materials chemistry, energy-related chemistry, and related fields
• Research Institution: Kumamoto University
• Principal Investigator: Ida Shintaro 熊本大学, 産業ナノマテリアル研究所, 教授 (70404324)
• Project Period (FY): 2021-07-09 – 2023-03-31
• Keywords: ナノシート / 遷移金属 / ニッケル

Outline of Final Research Achievements

Research on two-dimensional materials has been carried out in various material systems since the advent of graphene, but the synthesis of "metallic atom sheets", which consist of a two-dimensional array of metallic atoms with a thickness of one atom, is extremely difficult and has not yet been achieved. Atom sheets consisting of a single layer of metal atoms are expected to enable the reactivity of atoms, which are points, to be extracted as surfaces, as well as the chemical reactivity that is characteristic of atom sheets. In this study, the synthesis of atomic layer nickel nanosheets and their chemical reactivity were investigated in comparison with bulk nickel as a reaction to demonstrate these possibilities. As a result, the predicted atomic layer Ni nanosheets were successfully synthesized and their special reactivity was revealed.

Free Research Field

ナノ材料化学

Academic Significance and Societal Importance of the Research Achievements

二次元物質はバルク物質とは異なる物性を示すため科学分野でそのような特性に注目した研究が進められてきた。しかしながら、依然として材料合成が殆ど進展していない二次元物質として、金属原子1個が二次方向に規則的に配列した金属アトムシートがあった。本研究成果はこのような二次元材料群であった金属アトムシートの合成と応用の先駆けを研究しその構造や物性の一部を初めて明らかにした学術的意義の高い研究と考える。