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Título: | An introductory TEM study of Fe-nanominerals within coal fly ash |
Autor: | Silva, L.F.O.; Moreno, Teresa CSIC ORCID ; Querol, Xavier CSIC ORCID | Fecha de publicación: | 2009 | Editor: | Elsevier | Citación: | Science of the Total Environment 407 (17): 4972-4974 (2009) | Resumen: | The investigation presented here was conducted during a wider experiment on the technical feasibility and environmental impacts of tire combustion in a Brazilian coal-fired power station. Nanometric-sized crystalline phases in fly ash were characterised using energy-dispersive X-ray spectrometer (EDS) and high-resolution transmission electron microscopy (HR-TEM) images. The nanoparticles, which register abundance peaks at 10 nm and 100 nm, include iron-rich oxide (e.g. hematite), Fe-sulphate (e.g., yavapaiite: KFe(SO4)2), and Fe-aluminumsilicate glass. Individual metalliferous nanoparticles have a heterogeneous microstructure in which elements such as iron, aluminum and silicon are not uniformly distributed. HR-TEM offers a powerful analytical technique in the study of fly ash nanoparticles, providing a better understanding of the detailed chemistry of this potentially strongly bioreactive component of atmospheric particulate matter. © 2009 Elsevier B.V. All rights reserved. | URI: | http://hdl.handle.net/10261/63260 | DOI: | 10.1016/j.scitotenv.2009.05.044 | Identificadores: | doi: 10.1016/j.scitotenv.2009.05.044 issn: 0048-9697 e-issn: 1879-1026 |
Aparece en las colecciones: | (IDAEA) Artículos |
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