Holmium nitride is a binary inorganic compound of holmium and nitrogen with the chemical formula HoN.[2][3][4][5]
| Names | |
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| Other names
holmium mononitride, azanylidyneholmium | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.031.565 |
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PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| HoN | |
| Molar mass | 178.937 g·mol−1 |
| Density | 10.6 g/cm3[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis
editTo produce holmium nitride nanoparticles, a plasma arc discharge technique can be employed.
In this process, holmium granules are placed in a copper crucible, which acts as the anode, while a tungsten cathode is used. Before starting, the furnace is evacuated, and this step is repeated twice to eliminate most of the air. Afterward, the furnace is filled with argon and nitrogen gas to a partial pressure of 4 kPa and a mixture ratio of 80% nitrogen to 20% argon.
Once the furnace is prepared, a current of ~220 A is applied along ~50 V, creating an arc plasma that generates holmium vapor. The holmium vapor then continues to react with the nitrogen gas in the surrounding environment, resulting in the formation of holmium nitride nanoparticles.[6]
- 2 Ho (g) + N2 (g) → 2 HoN (s)
Physical properties
editThe compound forms crystals of cubic system.[1]
References
edit- 1 2 Lide, David R. (29 June 2004). CRC Handbook of Chemistry and Physics, 85th Edition. CRC Press. p. 4-60. ISBN 978-0-8493-0485-9. Retrieved 30 January 2024.
- ↑ "Holmium Nitride". American Elements. Retrieved 30 January 2024.
- ↑ "WebElements Periodic Table » Holmium » holmium nitride". webelements.com. Retrieved 30 January 2024.
- ↑ Toxic Substances Control Act (TSCA) Chemical Substance Inventory. Cumulative Supplement to the Initial Inventory: User Guide and Indices. U.S. Environmental Protection Agency, Office of Toxic Substances. 1980. p. 175. Retrieved 30 January 2024.
- ↑ Perry, Dale L. (19 April 2016). Handbook of Inorganic Compounds. CRC Press. p. 193. ISBN 978-1-4398-1462-8. Retrieved 30 January 2024.
- ↑ "Magnetocaloric properties of TbN, DyN and HoN nanopowders prepared by the plasma arc discharge method".
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