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Título: | Operando exploration of tribochemical decomposition of FeS2 thin films and mineral iron pyrite |
Autor: | Muñoz-Cortés, Esmeralda; Sánchez-Prieto, Jesús; Zabala, Borja; Sánchez, Carlos; Flores, Eduardo CSIC ORCID; Flores, Araceli CSIC ORCID; Román García, Elisa Leonor CSIC; Ares, José R.; Nevshupa, Roman CSIC ORCID | Palabras clave: | Iron sulfide Iron pyrite Tribochemical reactions Gas emissions Mass-spectrometry |
Fecha de publicación: | 11-mar-2024 | Editor: | Royal Society of Chemistry (UK) | Citación: | RSC Mechanochemistry (2024) | Resumen: | Tribochemical decomposition of thin-film synthetic iron disulfide and mineral iron pyrite was studied using a combination of operando mass-spectrometry coupled to ultrahigh vacuum tribochemical cell and these gas expansion system. The composition and kinetics of gas emission were analyzed using an original methodology. It was found that carbon-containing gases were dominating. The sulfur-containing gases comprised H2S, COS and CS2. The latter two were unexpected. The emission of the gases was traced back to solid-state chemical reactions kinetically controlled by the precursor concentrations and driven through non-thermal mechanisms, which we tentatively assigned to formation of sulfur radicals. | Versión del editor: | https://doi.org/10.1039/D3MR00027C | URI: | http://hdl.handle.net/10261/350030 | DOI: | 10.1039/D3MR00027C | E-ISSN: | 2976-8683 |
Aparece en las colecciones: | (IETCC) Artículos (CFMAC-IEM) Artículos (ICTP) Artículos (ICMM) Artículos |
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mineral-iron-pyrite.pdf | 6,83 MB | Adobe PDF | Visualizar/Abrir |
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