Akaganeite-type b-FeO(OH) nanocrystals: preparation and characterization
The preparation of nanocrystalline b-FeO(OH) by precipitation from an aqueous solution of the chloride salt and the investigation of relative surface properties of the iron oxyhydroxide gel were the aims of this study. A new advantageous method using ammonium carbonate as precipitating agent is presented by which the synthesis of akaganeite(b-FeO(OH) was accomplished. Akaganeite was transformed to iron oxide hydroxide (FeOOH) and ®nally to hematite(a-Fe2O3) after thermal treatment at 473 and 673 K, respectively. The use of a volatile agent for the hydrolysis process, the special method of chloride ion removal, as well as the freeze-drying technique, led to the production of a material consisting of nanocrystals with high surface area and defined pore size distribution.
Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης, Σχολή Θετικών Επιστημών, Τμήμα Χημείας
Microporous and Mesoporous Materials, vol.42  p.49-57 [Published Version]
This record is part of 'IKEE', the Institutional Repository of Aristotle University of Thessaloniki's Library and Information Centre found at http://ikee.lib.auth.gr. Unless otherwise stated above, the record metadata were created by and belong to Aristotle University of Thessaloniki Library, Greece and are made available to the public under Creative Commons Attribution-ShareAlike 4.0 International license (http://creativecommons.org/licenses/by-sa/4.0).
Unless otherwise stated in the record, the content and copyright of files and fulltext documents belong to their respective authors. Out-of-copyright content that was digitized, converted, processed, modified, etc by AUTh Library, is made available to the public under Creative Commons Attribution-ShareAlike 4.0 International license (http://creativecommons.org/licenses/by-sa/4.0). You are kindly requested to make a reference to AUTh Library and the URL of the record containing the resource whenever you make use of this material.
*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)