Tag: ytterbium oxide

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    What color are ytterbium oxide and erbium oxide?

    Introduction to the knowledge of ytterbium oxide and erbium oxide Ytterbium oxide , also called ytterbium trioxide, has the chemical formula Yb2O3. The pure product is a white powder, and it is yellowish-brown when it contains a small amount of thorium oxide. Insoluble in water and cold acid, soluble in warm dilute acid.
    Erbium oxide is a pink powder with the chemical formula Er2O3. It easily absorbs moisture and carbon dioxide, and becomes a hexagonal crystal when heated to 1300 , and does not melt. Then is synthesized from lanthanum metal. In 1843, it was partially isolated by Carl Gustaf Mosander. In 1905, Georges Urbain and Charles James proved for the first time that it has a pure pink cubic crystal structure. Oxidation can also be hexagonal under certain conditions.
    How to prepare ytterbium oxide and erbium oxide
    Preparation method of ytterbium oxide
    Taking brown yttrium niobium ore as raw material, through multi-step separation to obtain rich thulium and ytterbium aqueous solution, oxalic acid precipitation separation, filtration, and burning to prepare ytterbium oxide.
    Preparation method of erbium oxide
    After separation and burning, erbium oxide is obtained by reacting nitric acid or sulfuric acid solution with alkali.

    Uses of ytterbium oxide and erbium oxide
    Ytterbium Oxide: Mainly used in the manufacture of computer magnetic bubble materials, so that magnetic bubble storage has the characteristics of high speed, small size, large capacity, and multi-function.
    Erbium oxide: Erbium oxide is mainly used as an additive for yttrium iron garnet and as a control material for nuclear reactors. It is also used to make special light-emitting glass and infrared absorption glass. It is also used as a glass colorant. The only stable compound is Er2O3. Oxidation is a powdery substance with a cubic and monoclinic structure centered on the body. The magnetic moment of Er2O3 is also larger, 9.5MB. Other properties and preparation methods of oxidation properties are the same as those of lanthanides. Oxidation can be made into pink glass.

    How to store powder
    A humid environment will affect the dispersion performance and use the effect of the powder. Therefore, it should be sealed in a vacuum package and stored in a cool and dry room. It should not be exposed to the air. In addition, avoid using powder under pressure.
    The price of ytterbium oxide and erbium oxide
    In the market, the price of nano-powder raw materials is very transparent. We will provide you with high-quality powders. Please contact us to obtain a satisfactory quotation.
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    Application of graphene in lithium-ion batteries

    The unique physical and chemical characteristics of graphene make graphene a great candidate for research in the area of electrode material development. There are three main categories of graphene applications in lithium-ion cells. These are the anode and cathode material applications, as well as other applications.
    Application to graphene in cathode material
    The applicable cathode materials for lithium-ion battery batteries should have high reversible potential, stable potential, nontoxicity, and low cost of production. LiFePO4 (low lithium ion mobility) and lithium iron phosphate are the most popular cathode materials used for lithium-ion cells. It is possible to improve the conductivity and rate performance of LiFePO4 materials by adding graphene.
    A lack of research on graphene material positive electrodes is due to its uniqueness. Research has shown that hydrothermal methods of covering graphene directly on LiFePO4 surfaces to create composite materials have a poor rate of performance improvement. It could be because graphene structure is destroyed or stacked.
    The study showed that half-wrapping LiFePO4 in graphene can increase the conductivity, but that it decreases the ion transmission effectiveness after full-wrapping. This could be due to lithium ions not being able to pass through six-membered rings of graphene. To prepare LiFePO4/graphene hybrids, some researchers have ultrasonically mixed LiFePO4 Nanoparticles and graphite dioxide. The specificity of the lithium insertion is significantly increased after the material has been further coated with carbon. This can still be maintained at approximately 70mAh/g under high rates of 60C.

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