From Wikipedia, the free encyclopedia
Molybdenum monophosphide
Names
IUPAC name
Phosphanylidynemolybdenum
Identifiers
ECHA InfoCard
100.032.090
EC Number
InChI=1S/Mo.P
Key: AMWVZPDSWLOFKA-UHFFFAOYSA-N
Properties
Mo P
Molar mass
126.92 g·mol−1
Appearance
black crystals
Density
7.34 g/cm3
insoluble
Hazards
GHS labelling :
Warning
H319 ,
H335
P261 ,
P280 ,
P304 ,
P305 ,
P338 ,
P340 ,
P351 ,
P405 ,
P501
Related compounds
Related compounds
Trimolybdenum phosphide ,
molybdenum diphosphide
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
Chemical compound
Molybdenum monophosphide is a binary
inorganic compound of
molybdenum metal and
phosphorus with the chemical formula MoP .
[1]
[2]
[3]
Preparation
Molybdenum monophosphide can be obtained from electrolysis of molten molybdenum hexametaphosphate:
[4]
4 Mo(PO3 )6 → 4 MoP + 10 P2 O5 + 9 O2
It can also be prepared from heating of a mixture of molybdenum and
metaphosphoric acid in a carbon crucible:
2 Mo + 2 HPO3 + 5 C → 2 MoP + 5 CO + H2 O
Other reactions are known too.
[5]
[6]
Properties
Molybdenum monophosphide forms black crystals of
hexagonal crystal system with
space group P6m2 .
[7] It is insoluble in water. Molybdenum monophosphide decomposes when heated in air:
4 MoP + 11 O2 → 4 MoO3 + 2 P2 O5
Uses
Molybdenum monophosphide can be used as a
catalyst .
[8]
[9]
References
^
"Molybdenum Phosphide" .
American Elements . Retrieved 8 March 2024 .
^
Toxic Substances Control Act (TCSA) Chemical Substance Inventory: Cumulative Supplement to the Original Inventory. User Guide and Indices . U.S. Environment Protection Agency, Office of Toxic Substances. 1980. p. 14. Retrieved 8 March 2024 .
^ Lide, David R. (29 June 2004).
CRC Handbook of Chemistry and Physics, 85th Edition .
CRC Press . p. 4-70.
ISBN
978-0-8493-0485-9 . Retrieved 8 March 2024 .
^ Conrad, Ulrich (1935).
Die Elektrolyse von Molybdänsäure in Phosphatschmelzen (in German). Technische Hochschule zu Breslau. p. 13. Retrieved 8 March 2024 .
^ Yao, Z. W.; Wang, Li; Dong, Haitao (3 April 2009).
"A new approach to the synthesis of molybdenum phosphide via internal oxidation and reduction route" .
Journal of Alloys and Compounds . 473 (1): L10–L12.
doi :
10.1016/j.jallcom.2008.05.048 .
ISSN
0925-8388 . Retrieved 8 March 2024 .
^ Hui, Ge; Xingchen, Liu; Shanmin, Wang; Tao, Yang; Xiaodong, Wen (8 February 2017).
Innovative Applications of Mo(W)-Based Catalysts in the Petroleum and Chemical Industry: Emerging Research and Opportunities: Emerging Research and Opportunities . IGI Global. p. 66.
ISBN
978-1-5225-2275-1 . Retrieved 8 March 2024 .
^
"mp-219: MoP (Hexagonal, P-6m2, 187)" .
Materials Project . Retrieved 8 March 2024 .
^ Xiao, Peng; Sk, Mahasin Alam; Thia, Larissa; Ge, Xiaoming; Lim, Rern Jern; Wang, Jing-Yuan; Lim, Kok Hwa; Wang, Xin (18 July 2014).
"Molybdenum phosphide as an efficient electrocatalyst for the hydrogen evolution reaction" .
Energy & Environmental Science . 7 (8): 2624–2629.
doi :
10.1039/C4EE00957F .
hdl :
10356/103094 .
ISSN
1754-5706 . Retrieved 8 March 2024 .
^
Issues in Chemical Engineering and other Chemistry Specialties: 2011 Edition . ScholarlyEditions. 9 January 2012. p. 560.
ISBN
978-1-4649-6354-4 . Retrieved 8 March 2024 .
Mo(0) Mo(II) Mo(III) Mo(IV) Mo(V) Mo(VI)