Isomorphism and solid solutions among Ag- and Au-selenides

Galina A. Palyanova; Yurii V. Seryotkin; Konstantin A. Kokh; Vladimir V. Bakakin

doi:10.1016/j.jssc.2016.06.008

Isomorphism and solid solutions among Ag- and Au-selenides

Galina A. Palyanova, Yurii V. Seryotkin, Konstantin A. Kokh, Vladimir V. Bakakin

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

5 Цитирования (Scopus)

Аннотация

Au-Ag selenides were synthesized by heating stoichiometric mixtures of elementary substances of initial compositions Ag_2-xAu_xSe with a step of x=0.25 (0≤x≤2) to 1050 °C and annealing at 500 °C. Scanning electron microscopy, optical microscopy, electron microprobe analysis and X-ray powder diffraction methods have been applied to study synthesized samples. Results of studies of synthesized products revealed the existence of three solid solutions with limited isomorphism Ag Au: naumannite Ag₂Se - Ag_1.94Au_0.06Se, fischesserite Ag₃AuSe₂ - Ag_3.2Au_0.8Se₂ and gold selenide AuSe - Au_0.94Ag_0.06Se. Solid solutions and AgAuSe phases were added to the phase diagram of Ag-Au-Se system. Crystal-chemical interpretation of Ag-Au isomorphism in selenides was made on the basis of structural features of fischesserite, naumannite, and AuSe.

Язык оригинала	английский
Страницы (с-по)	157-163
Число страниц	7
Журнал	Journal of Solid State Chemistry
Том	241
DOI	https://doi.org/10.1016/j.jssc.2016.06.008
Состояние	Опубликовано - 1 сен 2016

Доступ к документу

10.1016/j.jssc.2016.06.008

Link to publication in Scopus

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title = "Isomorphism and solid solutions among Ag- and Au-selenides",

abstract = "Au-Ag selenides were synthesized by heating stoichiometric mixtures of elementary substances of initial compositions Ag2-xAuxSe with a step of x=0.25 (0≤x≤2) to 1050 °C and annealing at 500 °C. Scanning electron microscopy, optical microscopy, electron microprobe analysis and X-ray powder diffraction methods have been applied to study synthesized samples. Results of studies of synthesized products revealed the existence of three solid solutions with limited isomorphism Ag Au: naumannite Ag2Se - Ag1.94Au0.06Se, fischesserite Ag3AuSe2 - Ag3.2Au0.8Se2 and gold selenide AuSe - Au0.94Ag0.06Se. Solid solutions and AgAuSe phases were added to the phase diagram of Ag-Au-Se system. Crystal-chemical interpretation of Ag-Au isomorphism in selenides was made on the basis of structural features of fischesserite, naumannite, and AuSe.",

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Isomorphism and solid solutions among Ag- and Au-selenides. / Palyanova, Galina A.; Seryotkin, Yurii V.; Kokh, Konstantin A.; Bakakin, Vladimir V.

В: Journal of Solid State Chemistry, Том 241, 01.09.2016, стр. 157-163.

Результат исследования: Научные публикации в периодических изданиях › статья › рецензирование

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AU - Palyanova, Galina A.

AU - Seryotkin, Yurii V.

AU - Kokh, Konstantin A.

AU - Bakakin, Vladimir V.

PY - 2016/9/1

Y1 - 2016/9/1

N2 - Au-Ag selenides were synthesized by heating stoichiometric mixtures of elementary substances of initial compositions Ag2-xAuxSe with a step of x=0.25 (0≤x≤2) to 1050 °C and annealing at 500 °C. Scanning electron microscopy, optical microscopy, electron microprobe analysis and X-ray powder diffraction methods have been applied to study synthesized samples. Results of studies of synthesized products revealed the existence of three solid solutions with limited isomorphism Ag Au: naumannite Ag2Se - Ag1.94Au0.06Se, fischesserite Ag3AuSe2 - Ag3.2Au0.8Se2 and gold selenide AuSe - Au0.94Ag0.06Se. Solid solutions and AgAuSe phases were added to the phase diagram of Ag-Au-Se system. Crystal-chemical interpretation of Ag-Au isomorphism in selenides was made on the basis of structural features of fischesserite, naumannite, and AuSe.

AB - Au-Ag selenides were synthesized by heating stoichiometric mixtures of elementary substances of initial compositions Ag2-xAuxSe with a step of x=0.25 (0≤x≤2) to 1050 °C and annealing at 500 °C. Scanning electron microscopy, optical microscopy, electron microprobe analysis and X-ray powder diffraction methods have been applied to study synthesized samples. Results of studies of synthesized products revealed the existence of three solid solutions with limited isomorphism Ag Au: naumannite Ag2Se - Ag1.94Au0.06Se, fischesserite Ag3AuSe2 - Ag3.2Au0.8Se2 and gold selenide AuSe - Au0.94Ag0.06Se. Solid solutions and AgAuSe phases were added to the phase diagram of Ag-Au-Se system. Crystal-chemical interpretation of Ag-Au isomorphism in selenides was made on the basis of structural features of fischesserite, naumannite, and AuSe.

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KW - Isomorphism

KW - Silver

KW - Solid solutions (Ag,Au)Se

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