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Title: The effect of different annealing temperatures on tin and cadmium telluride phases obtained by a modified chemical route

Abstract

Graphical abstract: Display Omitted Highlights: ► Synthesis of cadmium and tin telluride. ► Chemical route to obtain pure crystalline cadmium and tin telluride. ► Effect of the annealing temperature on the crystalline phases. ► Removal of tin oxide as side product through thermal treatment. -- Abstract: In this work tin and cadmium telluride were prepared by a modification of a chemical route reported in the literature to obtain metallacycles formed by oxidative addition of tin-tellurium bonds to platinum (II). Through this procedure it was possible to obtain tin and cadmium telluride. X-ray diffraction and X-ray photoelectron spectroscopy were used to identify the crystalline phases obtained as well as the presence of side products. In the case of tin telluride it was identified potassium chloride, metallic tellurium and tin oxide as contaminants. The tin oxidation states were also monitored by {sup 119}Sn Mössbauer spectroscopy. The annealing in hydrogen atmosphere was chosen as a strategy to reduce the tin oxide and promote its reaction with the excess of tellurium present in the medium. The evolution of this tin oxide phase was studied through the annealing of the sample at different temperatures. Cadmium telluride was obtained with high degree of purity (98.5% relativemore » weight fraction) according to the Rietveld refinement of X-ray diffraction data. The modified procedure showed to be very effective to obtain amorphous tin and cadmium telluride and the annealing at 450 °C has proven to be useful to reduce the amount of oxide produced as side product.« less

Authors:
 [1];  [2];  [2];  [3];  [4]
  1. Departamento de Química, CCE, Universidade Federal do Espírito Santo, Campus Goiabeiras, 29075-910 Vitória, Espírito Santo (Brazil)
  2. Departamento de Química, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil)
  3. Departamento de Física, ICEx, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais (Brazil)
  4. Centro de Desenvolvimento da Tecnologia Nuclear, CDTN/CNEN, Belo Horizonte, Minas Gerais (Brazil)
Publication Date:
OSTI Identifier:
22215628
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; OXIDATION; POTASSIUM CHLORIDES; SYNTHESIS; TELLURIDES; TELLURIUM; TIN; TIN OXIDES; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY

Citation Formats

Mesquita, Anderson Fuzer, Porto, Arilza de Oliveira, E-mail: arilzaporto@yahoo.com.br, Magela de Lima, Geraldo, Paniago, Roberto, and Ardisson, José Domingos. The effect of different annealing temperatures on tin and cadmium telluride phases obtained by a modified chemical route. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.06.074.
Mesquita, Anderson Fuzer, Porto, Arilza de Oliveira, E-mail: arilzaporto@yahoo.com.br, Magela de Lima, Geraldo, Paniago, Roberto, & Ardisson, José Domingos. The effect of different annealing temperatures on tin and cadmium telluride phases obtained by a modified chemical route. United States. doi:10.1016/J.MATERRESBULL.2012.06.074.
Mesquita, Anderson Fuzer, Porto, Arilza de Oliveira, E-mail: arilzaporto@yahoo.com.br, Magela de Lima, Geraldo, Paniago, Roberto, and Ardisson, José Domingos. Thu . "The effect of different annealing temperatures on tin and cadmium telluride phases obtained by a modified chemical route". United States. doi:10.1016/J.MATERRESBULL.2012.06.074.
@article{osti_22215628,
title = {The effect of different annealing temperatures on tin and cadmium telluride phases obtained by a modified chemical route},
author = {Mesquita, Anderson Fuzer and Porto, Arilza de Oliveira, E-mail: arilzaporto@yahoo.com.br and Magela de Lima, Geraldo and Paniago, Roberto and Ardisson, José Domingos},
abstractNote = {Graphical abstract: Display Omitted Highlights: ► Synthesis of cadmium and tin telluride. ► Chemical route to obtain pure crystalline cadmium and tin telluride. ► Effect of the annealing temperature on the crystalline phases. ► Removal of tin oxide as side product through thermal treatment. -- Abstract: In this work tin and cadmium telluride were prepared by a modification of a chemical route reported in the literature to obtain metallacycles formed by oxidative addition of tin-tellurium bonds to platinum (II). Through this procedure it was possible to obtain tin and cadmium telluride. X-ray diffraction and X-ray photoelectron spectroscopy were used to identify the crystalline phases obtained as well as the presence of side products. In the case of tin telluride it was identified potassium chloride, metallic tellurium and tin oxide as contaminants. The tin oxidation states were also monitored by {sup 119}Sn Mössbauer spectroscopy. The annealing in hydrogen atmosphere was chosen as a strategy to reduce the tin oxide and promote its reaction with the excess of tellurium present in the medium. The evolution of this tin oxide phase was studied through the annealing of the sample at different temperatures. Cadmium telluride was obtained with high degree of purity (98.5% relative weight fraction) according to the Rietveld refinement of X-ray diffraction data. The modified procedure showed to be very effective to obtain amorphous tin and cadmium telluride and the annealing at 450 °C has proven to be useful to reduce the amount of oxide produced as side product.},
doi = {10.1016/J.MATERRESBULL.2012.06.074},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}