Development of extremely thin Molecular-Net-Sieving membranes

2014 Fiscal Year Final Research Report

• Project/Area Number: 24246126
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Hiroshima University
• Principal Investigator: TSURU Toshinori 広島大学, 工学(系)研究科(研究院), 教授 (20201642)
• Co-Investigator(Kenkyū-buntansha): GUNGI Takahiro 東京理科大学, 理工学部, 教授 (20256663) ; ITO Kenji 独立行政法人産業技術総合研究所, 計測標準研究部, 研究室長 (90371020)
• Co-Investigator(Renkei-kenkyūsha): YOSHIOKA Tomohisa 広島大学, 大学院工学研究院, 准教授 (50284162) ; KANEZASHI Masakoto 広島大学, 大学院工学研究院, 助教 (10467764)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 膜分離 / Molecular-Net-Sieving / シリカ

Outline of Final Research Achievements

A novel concept of Molecular-Net-Sieving (MNS) where space consisting of networks can separate molecules based on the molecular sieving mechanism is proposed for the development of extremely high H2 permeable membranes. New silicon-based alkoxides and oligomers were prepared, and positron annihilation spectroscopy was applied to evaluate the pore structures. In addition, Molecular-Net-Sieving membranes were prepared from various types of precursors and characterized. Molecular-Net-Sieving membranes were confirmed to show higher hydrogen permeance higher than 1x10-6 mol m-2 Pa-1 s-1, and high separation factors for H2/propane (>1,000) and H2/SF6 (>10,000).

Free Research Field

分離，膜分離工学，