title: Design and synthesis of self-ordered mesoporous nanocomposite through controlled in-situ crystallization.
abstract: Mesoporous materials are of technological interest because of their applications ranging from catalysts, molecular sieves, separation technology and gas sensors, to batteries and electronics. Here we demonstrate a synthetic methodology that allows us to create an ordered mesoporous nanocomposite with a crystalline oxide framework. We design a 'nanocrystal-glass' configuration to build a nanoarchitecture by means of surfactant-templated self-assembly followed by the controlled in-situ crystallization of materials. Functional nanocrystals are used as the building blocks of ordered mesopores, and the glass phase can act both as the 'glue' between nanocrystals and as a functionalized component in the composites. Specifically, we demonstrate this methodology for ordered mesoporous nanocomposites consisting of electrochemically active nanocrystals and semiconductive glass in the TiO2-P2O5-M(x)O(y) systems (where M is a metal ion). This approach could be applied to many other multicomponent oxides to fabricate mesoporous nanocomposites for numerous uses.
authors.affiliation: Energy Electronics Institute, National Institute of Advanced Industrial Science and Technology (AIST), Umezono, 1-1-1, Tsukuba 305-8568, Japan.
authors.forename: Donglin
authors.initials: D
authors.lastname: Li
authors.forename: Haoshen
authors.initials: H
authors.lastname: Zhou
authors.forename: Itaru
authors.initials: I
authors.lastname: Honma
mesh_terms: D003460:Crystallization / Q000295:instrumentation* / Q000379:methods*; D003461:Crystallography / Q000379:methods*; D004867:Equipment Design; D046911:Macromolecular Substances; D008420:Manufactured Materials; D008422:Materials Testing; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods*; D016062:Porosity; D014025:Titanium / Q000737:chemistry*
chemical_list: D046911:Macromolecular Substances; C009495:titanium dioxide; D014025:Titanium