PEG Polymer-assisted Synthesis Of Molybdenum Oxides:Structure Diversity And Mechanism Research

Molybdenum oxide is a kind of transition metal oxide with multiple properties of electroluminescence,photoluminescence and light catalytic,which is widely used in sensors,catalysis,energy storage,etc.M0O3 have various kinds of structures and crystal forms which can directly affect the usability.With the widespread use of MoO3,new requirements of the MoO3 materials have been raised,especially the micro-nano material.Thus,it is one of the frontiers and hotspots of the research field that how to regulate the composition,shape and particle size of MoO3 to get the ideal powder in convenient ways.The synthesis of polymer’s inducement of metallic-oxide regulates itself by utilizing the possibiity of its own character of self-assembling.Template method is an effective technology of synthesizing nanomaterials with good controllability.Its space limitation effect and the commissioning effect of template agent can be made use of to control the size,appearance,structure and arrangement of synthesized materials.This article discusses about using hydrogen peroxide and Molybdenum powder as raw materials to prepare Molybdenum precursor solution,then compounding PEG-MoOx hybrid material in various texture through PEG’s induction in PEG solution system,and developing MoOx powder in distinguished texture through calcination.It also discusses about the micelle of PEG in aqueous solution as well as the mechanism of PEG regulating the production of oxide.Focusing on the effects of the PEG polymer concentration,of the temperature and time of PEG molecular weight and other aspects on the profile of PEG-MoOx hybrid materials and the effects of calcination temperature and calcination atmosphere on the profile and structure of MoOx.The result shows that:when the concentration of PEG is lower and less than 0.001 g/ml,the PEG-molybdenum oxide compound obtained is fibrous;while the concentration of GEP is higher and more than 0.1 g/ml,the PEG-molybdenum oxide compound obtained is quasi sphere;The subject establishes suitable control conditions of experiment by changing the identity of PEG in the reaction system and the average molecular weight to effectively regulate the shape of the PEG-molybd-oxide hybrid and explore it’s mechanism of regulation.