Preparation of large,ultra-flexible and free-standing nanomembranes of metal oxide-polymer composite and their gas permeation properties

作     者：Anteneh Mersha Roman Selyanchyn Shigenori Fujikawa 

作者机构：Graduate School of EngineeringKyushu UniversityFukuoka 819-0395Japan WPI International Institute for Carbon-Neutral Energy Research(WPI-I2CNER)Kyushu UniversityFukuoka 819-0395Japan Center for Molecular Systems(CMS)Kyushu UniversityFukuoka 819-0395Japan Laboratory for Chemistry and Life ScienceTokyo Institute of Technology4259 NagatsutachoMidori-kuYokohama226-8503Japan 

出 版 物：《Clean Energy》 (清洁能源（英文）)

年 卷 期：2017年第1卷第1期

页      面：80-89页

核心收录：

学科分类：040106[教育学-高等教育学] 0401[教育学-教育学] 04[教育学] 

基　　金：This work was supported by the World Premier International Research Center Initiative(WPI),MEXT,Japan.The work was also supported by a Grant-in-Aid for Scientific Research(B)(No.26286016) Grant-in-Aid for Scientific Research(S)(No.25220805)from the Ministry of Education,Culture,Sports,Science and Technology(MEXT)of Japan and a JSPS Kakenhi Grant(no.16H06513) We gratefully acknowledge the financial support from JST ACT-C(No.24550126) The work was also supported by the Japanese government(MEXT)scholarship program and by the Japanese Society for the Promotion of Science(JSPS Grant-in-aid for Research Activity Start-up,No.26889045) 

主　　题：nanomembranes free-standing film ultrathin film layer-by-layer assembly metal oxide gas permeation 

摘      要：In this work,fabrication of free-standing nanomembranes of metal oxide(MO_(x))and polymers by simple spin-coating method is ***,double-layer nanomembranes containing MO_(x) and epoxy resin of polyethyleneimine and poly[(o-cresyl glycidyl ether)-co-formaldehyde]were ***-standing nanomembranes were successfully prepared,but defects formed in the metal oxide nanolayer during sharp bending of the *** overcome fragility of MO_(x) nanolayer,poly(vinyl alcohol)nanolayers were introduced between MO_(x) nanolayers by layer-by-layer(LbL)assembly *** LbL nanomembrane was also free-standing and was highly flexible during macroscopic membrane *** after transfer of the LbL nanomembrane onto a porous support,it did not have apparent cracks,confirmed by scanning electron microscopy(SEM).The LbL nanomembrane sustained low gas permeance,confirming the absence of significant defects,although it shows excellent *** believe that the presented LbL nanomembrane could be a platform useful for the design of molecular nanochannels,which is the next challenge for efficient gas separation.