Molybdenum phosphide
Crystal structure | ||||||||||||||||
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__ Mon __ P | ||||||||||||||||
General | ||||||||||||||||
Surname | Molybdenum phosphide | |||||||||||||||
other names |
Molybdenum monophosphide |
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Ratio formula | Mop | |||||||||||||||
Brief description |
gray to black solid |
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properties | ||||||||||||||||
Molar mass | 126.91 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
7.34 g cm −3 |
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Melting point |
1100 ° C |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Molybdenum phosphide is an inorganic chemical compound of molybdenum from the group of phosphides . In addition to this, at least two further molybdenum phosphides are known with trimolybdenum phosphide Mo 3 P and molybdenum diphosphide MoP 2 .
Extraction and presentation
Molybdenum phosphide can be obtained by reacting molybdenum with phosphorus . Wöhler and Rautenberg obtained the compound by reacting molybdenum trioxide with phosphoric acid in a carbon crucible.
There are also other synthesis options known.
properties
Molybdenum phosphide is a gray to black solid. It has a crystal structure with space group P 6 m 2 (space group no. 187) which corresponds to that of tungsten carbide WC.
use
Molybdenum phosphide can be used as a catalyst .
Individual evidence
- ↑ a b c d e data sheet Molybdenum phosphide, 99.5% (metals basis) from AlfaAesar, accessed on December 30, 2017 ( PDF )(JavaScript required) .
- ↑ a b c d e f Jane E. Macintyre: Dictionary of Inorganic Compounds . CRC Press, 1992, ISBN 978-0-412-30120-9 , pp. 3594 ( limited preview in Google Book Search).
- ^ Dale L. Perry: Handbook of Inorganic Compounds, Second Edition . CRC Press, 2016, ISBN 978-1-4398-1462-8 , pp. 489 ( limited preview in Google Book search).
- ↑ Stig Rundqvist, Torsten Lundström: X-Ray Studies of Molybdenum and Tungsten Phosphides. In: Acta Chemica Scandinavica. 17, 1963, p. 37, doi : 10.3891 / acta.chem.scand.17-0037 .
- ↑ Ulrich Conrad: The electrolysis of molybdic acid in phosphate melts . Triltsch, 1935, p. 13 ( limited preview in Google Book search).
- ↑ ZW Yao, L. i. Wang, Haitao Dong: A new approach to the synthesis of molybdenum phosphide via internal oxidation and reduction route. In: Journal of Alloys and Compounds. 473, 2009, p. L10, doi : 10.1016 / j.jallcom.2008.05.048 .
- ^ Francis S. Galasso: Structure and Properties of Inorganic Solids International Series of Monographs in Solid State Physics . Elsevier, 2016, ISBN 978-1-4831-5541-8 , pp. 121 ( limited preview in Google Book search).
- ↑ Peng Xiao, Mahasin Alam Sk, Larissa Thia, Xiaoming Ge, Rern Jern Lim, Jing-Yuan Wang, Kok Hwa Lim, Xin Wang: Molybdenum phosphide as an efficient electrocatalyst for the hydrogen evolution reaction. In: Energy Environ. Sci .. 7, 2014, p. 2624, doi : 10.1039 / C4EE00957F .