Preparation of thin films of semi-conductive pillared layered materials for selective gas sensors

2015 Fiscal Year Final Research Report

• Project/Area Number: 25410242
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic industrial materials
• Research Institution: University of Hyogo
• Principal Investigator: Matsuo Yoshiaki 兵庫県立大学, 工学(系)研究科(研究院), 准教授 (20275308)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: ピラー化層状化合物 / ガスセンサ / 薄膜

Outline of Final Research Achievements

Thin films of semi-conducting pillared layered materials were successfully prepared from the thermal or photo reduction of layered materials silylated with octyltrichlorosilane and then with silylating reagents containing methyl or 3-aminopropyl groups. This method was available for the preparation of pillared carbons or layered titanates.
It was possible to size-selectively detect organic vapors even at room temperature using pillared carbon film with high conductivity. By using various silylating reagents under different reaction conditions, the density of pillars, the distance between them and the interlayer spacings of pillared carbon were widely controlled. Selective detection of acetone molecules in the presence of water vapor was also achieved when pillared carbon prepared from the silylated graphite oxide reacted with dimethyldichlorosilane.

Free Research Field

工業物理化学