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Printable version; In other projects ... Copper(II) telluride is an inorganic compound with the chemical formula CuTe that occurs in nature as a rare mineral vulcanite.
Copper telluride may refer to: Weissite, a mineral, Cu 2−x Te; Rickardite, a mineral, Cu 7 Te 5 (or Cu 3−x (x = 0 to 0.36) Te 2) Copper(I) telluride, Cu 2 Te; Copper(II) telluride, CuTe, which occurs as the mineral vulcanite; Copper ditelluride, CuTe 2; Tellurium copper, copper alloy with tellurium
Copper(I) telluride is an inorganic compound with the chemical formula Cu 2 Te. It can be synthesized by reacting elemental copper and tellurium with a molar ratio of 2:1 at 1200 °C in a vacuum. [3] Cu 2 Te has potential applications in thermoelectric elements and in solar cells, where it is alloyed with cadmium telluride to create a ...
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Copper ditelluride is an inorganic compound with the chemical formula CuTe 2.It is a superconductor with a C18 structure and a transition temperature of 1.3 K. [2] CuTe 2 crystals can be synthesized by reacting elemental copper and tellurium with a molar ratio of 1:2 at a pressure of 65 kbar for 1–3 hours at 1000–1200 °C, followed by slow cooling.
The other halogens do not form halides with tellurium in the +6 oxidation state, but only tetrahalides (TeCl 4, TeBr 4 and TeI 4) in the +4 state, and other lower halides (Te 3 Cl 2, Te 2 Cl 2, Te 2 Br 2, Te 2 I and two forms of TeI). In the +4 oxidation state, halotellurate anions are known, such as TeCl 2− 6 and Te 2 Cl 2− 10.
The telluride ion is the anion Te 2− and its derivatives. It is analogous to the other chalcogenide anions, the lighter O 2−, S 2−, and Se 2−, and the heavier Po 2−. [1] In principle, Te 2− is formed by the two-e − reduction of tellurium. The redox potential is −1.14 V. [2] Te(s) + 2 e − ↔ Te 2−
Dysprosium(III) telluride reacts with copper(II) telluride at high temperature to obtain phases such as DyCuTe 2, DyCu 5 Te 4, and Dy 7 Cu 3 Te 12. [2] It and cadmium telluride can form CdDy 2 Te 4 at high temperatures: [ 3 ]