Abstract:
Disclosed is a method for preparing a semi-furanic copolyamide containing at least one furanic dicarboxylic acid moiety and at least one aliphatic diamine moiety in the backbone. The method is based on solid-state polymerization. Particularly, the method uses a biomass-derived furanic dicarboxylic acid as a raw material. A semi-furanic copolyamide prepared by the method has molecular weight and color levels that are practically required in industrial applications. In addition, the semi-furanic copolyamide can replace fossil fuels due to its good thermal stability and is suitable for use as an environmentally friendly bioplastic.
Abstract:
Disclosed is a method for carbon coating on lithium titanium oxide-based anode active material nanoparticles. The method includes (a) introducing a lithium precursor solution, a titanium precursor solution and a surface modifier solution into a reactor, and reacting the solutions under supercritical fluid conditions to prepare a solution including nanoparticles of an anode active material represented by Li4Ti5O12, (b) separating the anode active material nanoparticles from the reaction solution, and (c) calcining the anode active material nanoparticles to uniformly coat the surface of the nanoparticles with carbon. Further disclosed are carbon-coated lithium titanium oxide-based anode active material nanoparticles produced by the method. In the anode active material nanoparticles, lithium ions are transferred rapidly. In addition, the uniform carbon coating ensures high electrical conductivity, allowing the anode active material nanoparticles to have excellent electrochemical properties.
Abstract translation:公开了一种在基于二氧化钛的阳极活性材料纳米颗粒上涂覆碳的方法。 该方法包括(a)将锂前体溶液,钛前体溶液和表面改性剂溶液引入反应器中,并在超临界流体条件下使溶液反应以制备包含由Li 4 Ti 5 O 12表示的负极活性物质的纳米颗粒的溶液(b )从反应溶液中分离阳极活性材料纳米颗粒,和(c)煅烧阳极活性材料纳米颗粒以均匀地涂覆纳米颗粒的表面。 进一步公开了通过该方法制备的碳涂覆的基于二氧化钛的负极活性材料纳米颗粒。 在阳极活性材料纳米颗粒中,锂离子迅速转移。 此外,均匀的碳涂层确保高导电性,允许阳极活性材料纳米颗粒具有优异的电化学性质。
Abstract:
The present disclosure relates to a molybdenum carbide catalyst used in a process for preparing hydrocarbons, in particular diesel-grade hydrocarbons, from biooils and fatty acids released therefrom through hydrodeoxygenation and a method for preparing same.
Abstract:
Provided is a method for deoxygenating an oxygenated hydrocarbon compound using a hydrogenation catalyst of immersing a metal in a carrier comprising a metal oxide and a hydrodeoxygenation catalyst of immersing a metal in a carrier comprising a metal oxide. It is possible to increase deoxygenation efficiency by combining the hydrogenation catalyst and the hydrodeoxygenation catalyst.