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Synthesis and characterization of nanocrystalline MnFe2O 4: Advances in thermochemical water splitting

TitoloSynthesis and characterization of nanocrystalline MnFe2O 4: Advances in thermochemical water splitting
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2005
AutoriAlvani, C., Ennas G., La Barbera A., Marongiu G., Padella F., and Varsano F.
RivistaInternational Journal of Hydrogen Energy
Volume30
Paginazione1407-1411
ISSN03603199
Parole chiaveAgglomeration, Ball milling, High-energy ball milling, Hydrogen energy, Manganese compounds, Manganese ferrite, Nanostructured materials, Stoichiometric mixtures, Stoichiometry, Synthesis (chemical), Thermal effects, Thermogravimetric analysis, Transmission electron microscopy
Abstract

Nanostructured MnFe2O4 was prepared by high-energy ball milling of a stoichiometric mixture of MnO and Fe2O3 powders and characterized by XRD, TEM and TGA techniques. The ball milling process leads to strained nanocrystals with an average size of about 5 nm, agglomerated in sizes of about 100 nm. It was used with mechanically activated Na2CO3 to produce hydrogen from water in the temperature range 973-1073 K. At 1023 K the mixture shows a hydrogen production five times higher than that obtained with manganese ferrite prepared by thermally activated solid-state reaction. © 2004 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

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cited By 33

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-26444480239&doi=10.1016%2fj.ijhydene.2004.10.020&partnerID=40&md5=2387879c946f921d4280d78678b81fd3
DOI10.1016/j.ijhydene.2004.10.020
Citation KeyAlvani20051407