Niobium nitride is a compound of niobium and nitrogen (nitride) with the chemical formula NbN. At low temperatures (about 16 K) NbN becomes a superconductor, and is used in detectors for infrared light.[1][2][3]
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Names | |
---|---|
IUPAC name Niobium nitride | |
Identifiers | |
ECHA InfoCard | 100.042.132 |
PubChem CID | |
Properties | |
NbN | |
Molar mass | 106.91 g/mol |
Appearance | gray solid |
Density | 8.470 g/cm3 |
Melting point | 2,573 °C (4,663 °F; 2,846 K) |
reacts to form ammonia | |
Structure | |
cubic, cF8 | |
Fm3m, No. 225 | |
Hazards | |
Flash point | Non-flammable |
Safety data sheet (SDS) | External MSDS |
Related compounds | |
Other cations | Vanadium nitride Tantalum nitride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Uses
- Niobium nitride's main use is as a superconductor.
- Detectors based on it can detect a single photon in the 1-10 micrometer section of the infrared spectrum,[4] which is important for astronomy and telecommunications. It can detect changes up to 25 gigahertz.
- Superconducting NbN nanowires can be used in particle detectors with high magnetic fields.[5]
- Niobium nitride is also used in absorbing anti-reflective coatings.
- In 2015, it was reported that Panasonic Corp. has developed a photocatalyst based on niobium nitride that can absorb 57% of sunlight to support the decomposition of water to produce hydrogen gas as fuel for electrochemical fuel cells.[6]
References
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