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Revision as of 07:32, 25 January 2026
Chemical compound
Sodium antimonide is a binary inorganic chemical compound with the molecular formula Na3Sb.[1][2]
Synthesis
The compound is often synthesized by fusing the elements together at 900 °C in an inert atmosphere (Ar), resulting in a crystalline phase that facilitates Li or Na-ion storage.
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- 3Na + Sb → Na3Sb
Physical properties
The compound forms bluish-black cystals of hexagonal crystal system, space group P 63/mmc, cell parameters a = 0.532 nm, c = 0.947 nm, Z = 2.[3]
At high pressures (3 GPa), the transition to the cubic system occurs.
Chemical properties
Sodium antimonide кeacts with water:
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- Na3Sb + 3H2O → H3Sb + 3NaOH
Uses
The compound is known for its application as a high-capacity, rechargeable anode material in sodium-ion batteries.
It is also used as a light-emitting component in photocathodes.
References
