2 results about "Sodium zirconate" patented technology

The application discloses a high-voltage lithium cobaltate composite material and a preparation method thereof, and the preparation method comprises the following steps: uniformly mixing tricobalt tetroxide, sodium carbonate and nano zirconium dioxide to obtain mixed raw materials; after sintering and crushing, the mixed raw materials are used to obtain tricobalt tetroxide powder coated with sodium zirconate; the tricobalt tetroxide powder coated with sodium zirconate is uniformly mixed with lithium carbonate, and then calcination is carried out; air is introduced during the calcination; and after the calcination is completed, the obtained material is crushed to obtain the target product. According to the application, the zirconium dioxide is reacted with the sodium carbonate to form a sodium zirconate coating layer on the surface of the tricobalt tetroxide, the sodium zirconate can absorb carbon dioxide, the contact between the material and oxygen in the reaction is indirectly improved, so that the oxygen is not needed to be additionally introduced, and the production cost of the material is reduced; meanwhile, the doping of the sodium zirconate can improve the cycle performance and the rate performance of the material, and the lithium cobaltate composite material with stable performance in a high-voltage environment is prepared.

The invention discloses a circulating hydrogen production and light condensation heat storage integrated method and system based on multifunctional catalysis-adsorbent sodium zirconate, and relates to the technical field of charcoal gasification circulating hydrogen production and light condensation heat storage. The method comprises the following steps: introducing Na2ZrO3, charcoal and water vapor into a hydrogen production reactor; reacting to generate a zirconium oxide-sodium carbonate compound, and recovering hydrogen by condensing water vapor; the method comprises the following steps: introducing a zirconium oxide-sodium carbonate compound into a heat storage reactor, providing energy by utilizing concentrated solar energy in a carrier gas atmosphere, and simultaneously realizing separation of CO2 and regeneration of Na2ZrO3 through a carrier gas separation device; and circularly introducing the regenerated Na2ZrO3 into the hydrogen production reactor, and repeating the steps to complete continuous hydrogen production and heat storage circulation. According to the method, the catalysis-adsorption hydrogen production performance and the heat storage performance of Na2ZrO3 are ingeniously coupled, an efficient circulating system is constructed, high-valued utilization of biochar resources and efficient conversion and storage of concentrated solar energy are achieved, and the method has remarkable resource utilization value and environmental protection significance.