Study On Preparation And Application Of Nitride And Carbide In High Specific Surface Area

G-C₃N₄ is a very unique,because it's only with carbon and nitrogen element,the structure is relatively simple,so in some practical applications,C₃N₄ is often as carbon source or nitrogen source in the reaction process for the synthesis of some compounds.WC has the properties of platinum-like catalysis and has some catalytic activity in many chemical reactions.By controlling the surface structure of WC and particle size,the electrocatalytic performance can be improved.As a new kind of metal air battery,lithium O₂ battery has attracted wide attention,but it still faces many practical problems.?1?Electronic structure of graphite carbon nitride is very unique and excellent electronic stability,this article template,SBA-15 single precursors cyanogen amine system for high specific surface area of graphite,C₃N₄ characterization of materials,the results prove that synthetic g-C₃N₄ has the relative rules of morphology,ordered pore structure,specific surface area can reach 336 m² g^-1,aperture can reach 0.36 m ² g^-1.Thus,it can be used as a template and the carbon source,for the synthesis of tungsten carbide.?2?As a transition metal carbide,tungsten carbide has been widely used in chemical and electrocatalysis.In this paper,the high specific surface area graphite-nitride carbon materials are prepared as template,tungsten hexachloride is the tungsten source,and the high specific surface area of tungsten carbide material is synthesized.By means of TEM,XRD and physical adsorption,it can be proved that WC has high specific surface area,smaller particle size,and can effectively reduce impurity generation.?3?In this study,the electrocatalytic performance of WC was studied by synthesizing the high specific surface area and small particle size of WC.Through Swagelok battery assembly,test cycle performance of battery,a discharge capacity,etc.,it can prove that the high specific surface area of tungsten carbide material has excellent electric catalytic activity in lithium air batteries,battery can remain stable for a long time,the number of cycle can reach 100 times.