title: Low temperature biosynthesis of Li2O-MgO-P2O5-TiO2 nanocrystalline glass with mesoporous structure exhibiting fast lithium ion conduction.
abstract: We demonstrate a biomimetic synthesis methodology that allows us to create Li2O-MgO-P2O5-TiO2 nanocrystalline glass with mesoporous structure at lower temperature. We design a 'nanocrystal-glass' configuration to build a nanoarchitecture by means of yeast cell templates self-assembly followed by the controlled in-situ biomineralization of materials on the cell wall. Electrochemically active nanocrystals are used as the lamellar building blocks of mesopores, and the semiconductive glass phase can act both as the 'glue' between nanocrystals and functionalized component. The Li2O-MgO-P2O5-TiO2 nanocrystalline glass exhibits outstanding thermal stability, high conductivity and wide potential window. This approach could be applied to many other multicomponent glass-ceramics to fabricate mesoporous conducting materials for solid-state lithium batteries.
authors.affiliation: Shandong Provincial Key Laboratory of Processing and Testing Technology of Glass and Functional Ceramics, Shandong Polytechnic University, Jinan, 250353, China.
authors.forename: Xiaoyong
authors.initials: X
authors.lastname: Du
authors.forename: Wen
authors.initials: W
authors.lastname: He
authors.forename: Xudong
authors.initials: X
authors.lastname: Zhang
authors.forename: Jinyun
authors.initials: J
authors.lastname: Ma
authors.forename: Chonghai
authors.initials: C
authors.lastname: Wang
authors.forename: Chuanshan
authors.initials: C
authors.lastname: Li
authors.forename: Yuanzheng
authors.initials: Y
authors.lastname: Yue
mesh_terms: D000327:Adsorption; D002152:Calorimetry, Differential Scanning; D002516:Ceramics / Q000737:chemistry; D003460:Crystallization; D004055:Differential Thermal Analysis; D004553:Electric Conductivity; D055664:Electrochemical Techniques; D005898:Glass / Q000737:chemistry*; D007477:Ions; D008094:Lithium / Q000737:chemistry*; D008422:Materials Testing; D008670:Metals / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D008903:Minerals / Q000737:chemistry; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D009584:Nitrogen / Q000737:chemistry; D010087:Oxides / Q000737:chemistry*; D016062:Porosity; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D013818:Thermogravimetry; D044366:Transition Temperature; D014961:X-Ray Diffraction; D015003:Yeasts / Q000166:cytology / Q000648:ultrastructure
chemical_list: D007477:Ions; D008670:Metals; D008903:Minerals; D010087:Oxides; C023506:Glass ceramics; D008094:Lithium; D009584:Nitrogen
keywords: Li(2)O–MgO–P(2)O(5)–TiO(2) nanocrystalline glass; Lithium ionic conductor; Mesoporous structure; Yeast cell template