Synthesis of hydrogen-selective sub-nanoporous membranes from the polymeric metal oxide precursors

2013 Fiscal Year Final Research Report

• Project/Area Number: 24656462
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Utsunomiya University
• Principal Investigator: MATSUMOTO TAKI 宇都宮大学, 地域共生研究開発センター, 准教授 (00419417)
• Co-Investigator(Kenkyū-buntansha): SATO Takaaki 信州大学, 繊維学部, 准教授 (20373029) ; ITO Naotsugu 宇都宮大学, 工学研究科, 教授 (90356478)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Keywords: 水素選択透過 / ジルコニア薄膜 / 分子ふるい / ゾル-ゲルプロセス / 鎖状酸化物

Research Abstract

Zirconia membranes having sub-nano pores with the smaller pore size than 1nm were successfully prepared on porous alumina substrate by dip coating technique from the 1-butanol solution containing zirconium tetra-n-butoxide, diethylene glycol and 1-penten-3-ol. Installation of buffer layer constructed by gamma-alumina fine particles and post-hydrolysis process by steam treatment inhibited the peeling and cracking of the formed membranes, improving permselectivity of hydrogen gas.