publication . Article . 2020

Electrochemical deposition of zero-valent iron from alkaline ceramic suspensions of Fe2-xAlxO3 for iron valorisation

Daniela Lopes; Daniela Lopes; Margarida Quina; Margarida Quina; Margarida Quina; Andrei Kovalevsky; Andrei Kovalevsky; Andrei Kovalevsky;
Open Access English
  • Published: 29 Oct 2020 Journal: Journal of the Electrochemical Society (issn: 0013-4651, eissn: 1945-7111, Copyright policy)
  • Publisher: The Electrochemical Society
Abstract
Electrochemical reduction of iron oxides into zero-valent iron (ZVI, Fe0) is a promising alternative to the traditional methods used for iron production. The electrochemical deposition of Fe0 from hematite and hematite-based Fe2−xAlxO3 ceramic in alkaline suspensions (10 M of NaOH) was assessed at relatively low temperature (90 °C). Ceramic compositions aimed to mimic the main components of red mud waste from the alumina refining industry for iron valorisation purposes. The impact of aluminium content on the electroreduction and microstructure of the deposited Fe0 films was demonstrated and discussed. Trapping and following the leaching of the aluminium species ...
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Subjects
free text keywords: Renewable Energy, Sustainability and the Environment, Electrochemistry, Materials Chemistry, Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films, Condensed Matter Physics, Refining (metallurgy), Valorisation, Aluminium, chemistry.chemical_element, chemistry, Hematite, visual_art.visual_art_medium, visual_art, Zerovalent iron, Materials science, Red mud, Ceramic, Chemical engineering, Electrowinning
Funded by
EC| SIDERWIN
Project
SIDERWIN
Development of new methodologies for industrial CO2-free steel production by electrowinning
  • Funder: European Commission (EC)
  • Project Code: 768788
  • Funding stream: H2020 | RIA
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