Antimony (III) telluride

Crystal structure
	__ Sb 3+ __ Te 2−
General
Surname	Antimony (III) telluride
other names	Antimony trelluride; Antimony telluride;
Ratio formula	Sb 2 Te 3
Brief description	odorless solid
External identifiers / databases
EC number	215-480-9
ECHA InfoCard	100.014.074
PubChem	6369653
ChemSpider	21241420
Wikidata	Q3517399
properties
Molar mass	626.30 g mol −1
Physical state	firmly
density	6.50 g cm −3
Melting point	629 ° C
safety instructions
H and P phrases	H: 302-332-411
	P: 261-264-273-301 + 330 + 331-304 + 340-312-391-501
Thermodynamic properties
ΔH f 0	−56.5 kJ mol −1
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Antimony (III) telluride is an inorganic chemical compound of antimony from the telluride group .

Extraction and presentation

Antimony (III) telluride can be obtained by reacting antimony with tellurium .

{\ displaystyle {\ ce {2Nb + 3Te -> Nb2Te3}}}

It can also be made from antimony (III) oxide with tellurium and sodium formate at high pressure.

properties

Antimony (III) telluride is a gray, odorless solid. The compound has a rhombohedral crystal structure with the space group R 3 m (space group no. 166) . A hexagonal cell contains 15 atoms grouped in three layers. There is also a monoclinic high pressure modification. Template: room group / 166

use

Antimony (III) telluride , along with bismuth telluride and other structurally analogous semiconductors, is one of the best materials for room temperature thermoelectric devices. It is a key component of thermoelectric materials whose ZT values could reach 2.4 at room temperature.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g Entry on antimony (III) telluride in the GESTIS substance database of the IFA , accessed on January 28, 2020(JavaScript required) .
↑ M. Binnewies, E. Milke: Thermochemical Data of Elements and Compunds . 2nd Edition. Wiley-VCH, weinheim 2002, ISBN 3-527-30524-6 , pp. 829 .
↑ Jane E. Macintyre: Dictionary of Inorganic Compounds . CRC Press, 1992, ISBN 978-0-412-30120-9 , pp. 3807 ( limited preview in Google Book Search).
↑ B. Yu. Yavorsky, NF Hinsche, I. Mertig, P. Zahn: Electronic structure and transport anisotropy of Bi2Te3 and Sb2Te3. In: Physical Review B. 84, 2011, doi : 10.1103 / PhysRevB.84.165208 .
↑ SM Souza, CM Poffo, DM Trichês, JC de Lima, TA Grandi, A. Polian, M. Gauthier: High pressure monoclinic phases of Sb2Te3. In: Physica B: Condensed Matter. 407, 2012, p. 3781, doi : 10.1016 / j.physb.2012.05.061 .
↑ R. Venkatasubramanian, E. Siivola, T. Colpitts & B. O'Quinn: Thin-film thermoelectric devices with high room-temperature figures of merit, In: Nature 413 , 597-602, doi : 10.1038 / 35098012

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g Entry on antimony (III) telluride in the GESTIS substance database of the IFA , accessed on January 28, 2020(JavaScript required) .

[2] M. Binnewies, E. Milke: Thermochemical Data of Elements and Compunds . 2nd Edition. Wiley-VCH, weinheim 2002, ISBN 3-527-30524-6 , pp. 829 .

[Jane_E._Macintyre-3] Jane E. Macintyre: Dictionary of Inorganic Compounds . CRC Press, 1992, ISBN 978-0-412-30120-9 , pp. 3807 ( limited preview in Google Book Search).

[DOI10.1103/PhysRevB.84.165208-4] B. Yu. Yavorsky, NF Hinsche, I. Mertig, P. Zahn: Electronic structure and transport anisotropy of Bi2Te3 and Sb2Te3. In: Physical Review B. 84, 2011, doi : 10.1103 / PhysRevB.84.165208 .

[DOI10.1016/j.physb.2012.05.061-5] SM Souza, CM Poffo, DM Trichês, JC de Lima, TA Grandi, A. Polian, M. Gauthier: High pressure monoclinic phases of Sb2Te3. In: Physica B: Condensed Matter. 407, 2012, p. 3781, doi : 10.1016 / j.physb.2012.05.061 .

[Sigma-6] R. Venkatasubramanian, E. Siivola, T. Colpitts & B. O'Quinn: Thin-film thermoelectric devices with high room-temperature figures of merit, In: Nature 413 , 597-602, doi : 10.1038 / 35098012