Precise Synthesis of Inorganic Nanostructured Materials and Their Thermoelectric Properties

2016 Fiscal Year Final Research Report

• Project/Area Number: 26248060
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Inorganic industrial materials
• Research Institution: Waseda University
• Principal Investigator: Kuroda Kazuyuki 早稲田大学, 理工学術院, 教授 (90130872)
• Co-Investigator(Kenkyū-buntansha): 森 孝雄 国立研究開発法人物質・材料研究機構, その他部局等, その他 (90354430)
• Co-Investigator(Renkei-kenkyūsha): SHIMOJIMA Atsushi 早稲田大学, 理工学術院, 教授 (90424803)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: メソポーラス物質 / 熱電変換材料 / ナノ構造体 / 鋳型合成法

Outline of Final Research Achievements

Inorganic nanostructured materials were precisely synthesized and their properties were characterized to study the contribution of inorganic nanostructures to the development of new inorganic thermoelectric materials. A dramatic increase in the thermoelectric property, by downsizing of Bi nanowires down to smaller than 10 nm, is theoretically expected. In this study we have succeeded in synthesizing Bi nanowires with 6 -9 nm in diameter. In addition, a large decrease in the thermal conductivity, owing to the presence of ordered mesopores, was observed for mesoporous Nb-doped TiO2. On the basis of these results we have clarified the critical role of precise synthesis of inorganic nanostructured materials on the study of the relationship between nanostructures and thermoelectric properties.

Free Research Field

無機合成化学