Rare Earth Metal - Alfa Chemistry

Rare Earth Sulfide

Rare earth sulfides are composed of rare earth elements (cerium (Ce), europium (Eu), lanthanum (La), neodymium (Nd), praseodymium (Pr), ytterbium (Yb), gadolinium (Gd), holmium (Ho), ytterbium ( Yb), thulium (Tm), scandium (Sc), terbium (Tb), samarium (Sm), lutetium (Lu), erbium (Er) and dysprosium (Dy)) and sulfur compounds. Rare earth sulfides have more complex structures. Rare earth sesquisulfides RE2S3 (RE is a rare earth element, the same below) have various crystal structures such as orthorhombic, tetragonal, cubic, and monoclinic, and ternary and multicomponent rare earth sulfides have more complex structures. for abundance. Rare earth sulfides are a new class of functionalized materials with complex crystal structures and unique advantages in electrical, optical and magnetic properties. Rare earth sulfides are widely used in the fields of pigments, new energy materials and catalysis, and have broad development prospects. They are research hotspots in recent years.

Rare Earth Sulfide

What can we offer

The related products we can provide include:

Controllable synthesis of target products

In recent years, with the in-depth study of the structure of rare earth sulfides, the means of regulating the vacancies and defects in the lattice of rare earth sulfides are gradually enriched. Researchers can control the crystal structure by adjusting the preparation method, so as to enhance the performance of the material, so as to be widely used in the fields of new energy, catalysis, electrochemistry and magnetism.

Preparation of rare earth sulfides

  • Solid phase synthesis method
  • Gas-solid synthesis method
  • Liquid phase synthesis method
  • Gas phase synthesis method
  • Other synthetic methods

Rare earth sulfide morphology control

Rare earth sulfides with different morphologies exhibit different properties and have different uses. For the preparation of rare earth sulfides, their synthesis method is very important. In recent years, researchers have developed a variety of synthetic methods to synthesize rare earth sulfides with various shapes, such as spheres, flakes, plates, rectangular microrods, and nanowire bundles.

Rare earth sulfides have many different morphologiesFigure 2. Rare earth sulfides have many different morphologies

Application of rare earth sulfide

  • Inorganic pigments: Rare earth sulfides have the advantages of bright colors and a wide range, strong anti-corrosion ability and high dispersibility, and have become substitutes for inorganic pigments. For example, γ-Ce2S3 is considered as a candidate to replace cadmium and organic red pigments because of its non-toxicity and bright colors.
  • Energy materials: Rare earth sulfides have attracted extensive attention due to their excellent capacitance parameters (potential window, specific capacitance, power density, energy density, etc.).
  • Photocatalyst: The photocatalytic material rare earth sulfide has good thermal stability and good absorption performance in the range of visible light and infrared light, and has great application potential in the field of photocatalysis.

Product customization

Rare earth sulfides have complex structures, and their crystal structures can be controlled by synthesis conditions. Alfa Chemistry is equipped with advanced laboratories and has the ability to customize the synthesis of rare earth sulfides according to customer needs. If you are interested in our products, please contact us immediately.


  1. Lou. C.J et al. Preparation and application of rare earth sulfides. Chinese Science: Chemistry. 2021, 51(7): 803-830.

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