Ag, Cu, Hg, Pt, Sb and Te substitutions in the synthetic analogue of palladseite, Pd17Se15: an experimental mineralogical study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F21%3A00000263" target="_blank" >RIV/00025798:_____/21:00000263 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/21:10436680

Výsledek na webu

<a href="http://www.jgeosci.org/detail/jgeosci.333" target="_blank" >http://www.jgeosci.org/detail/jgeosci.333</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3190/jgeosci.333" target="_blank" >10.3190/jgeosci.333</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ag, Cu, Hg, Pt, Sb and Te substitutions in the synthetic analogue of palladseite, Pd17Se15: an experimental mineralogical study

Popis výsledku v původním jazyce

The solubility of Ag, Cu, Hg, Pt, Sb and Te in the synthetic analogue of palladseite was experimentally studied at 3 °C.To document the impact of these elements on the palladseite crystal structure, Rietveld refinement analysis of experimentalproducts was performed. The synthetic Pd17Se15 dissolves at 400 °C 3.6, 6.4, 8.8, 9.7, 6.1 wt. percent of Cu, Ag, Hg, Pt andTe, respectively. The solubility of Sb in synthetic Pd17Se15 is less than 0.03 wt. percent. Three different types of incorporationof the above-mentioned elements to the palladseite structure have been observed. Ag, Cu and Hg occupy a position 3dof the Pm–3m space group, which was empty in the unsubstituted Pd17Se15. Consequently, Pd occupancy of adjacent[Pd(4)Se6] octahedron is reduced to 0.46 and 0.51 for Cu and Ag-bearing palladseite, respectively. Incorporation of Hgto the palladseite structure causes vacancy of this Pd(4) position. Pt partially substitutes Pd at the Pd(2) position (6f ),forming Pd0.41/Pt0.59 mix site showing square-planar coordination by Se atoms. Te atoms substitute for Se. The refinedunit-cell parameter increased from the initial value of a = 10.6074(1) angstroem for Pd17Se15 to 10.6680(1) angstroem for Te-bearingpalladseite. Incorporation of Cu, Ag and Hg to the palladseite causes significant changes of its powder X-ray diffractionpattern and hence can be detected by PXRD.

Název v anglickém jazyce

Ag, Cu, Hg, Pt, Sb and Te substitutions in the synthetic analogue of palladseite, Pd17Se15: an experimental mineralogical study

Popis výsledku anglicky

The solubility of Ag, Cu, Hg, Pt, Sb and Te in the synthetic analogue of palladseite was experimentally studied at 3 °C.To document the impact of these elements on the palladseite crystal structure, Rietveld refinement analysis of experimentalproducts was performed. The synthetic Pd17Se15 dissolves at 400 °C 3.6, 6.4, 8.8, 9.7, 6.1 wt. percent of Cu, Ag, Hg, Pt andTe, respectively. The solubility of Sb in synthetic Pd17Se15 is less than 0.03 wt. percent. Three different types of incorporationof the above-mentioned elements to the palladseite structure have been observed. Ag, Cu and Hg occupy a position 3dof the Pm–3m space group, which was empty in the unsubstituted Pd17Se15. Consequently, Pd occupancy of adjacent[Pd(4)Se6] octahedron is reduced to 0.46 and 0.51 for Cu and Ag-bearing palladseite, respectively. Incorporation of Hgto the palladseite structure causes vacancy of this Pd(4) position. Pt partially substitutes Pd at the Pd(2) position (6f ),forming Pd0.41/Pt0.59 mix site showing square-planar coordination by Se atoms. Te atoms substitute for Se. The refinedunit-cell parameter increased from the initial value of a = 10.6074(1) angstroem for Pd17Se15 to 10.6680(1) angstroem for Te-bearingpalladseite. Incorporation of Cu, Ag and Hg to the palladseite causes significant changes of its powder X-ray diffractionpattern and hence can be detected by PXRD.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10504 - Mineralogy

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Geosciences

ISSN

1802-6222

e-ISSN

—

Svazek periodika

66

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

205–213

Kód UT WoS článku

000738385300005

EID výsledku v databázi Scopus

2-s2.0-85122007488