{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T16:14:00Z","timestamp":1790784840064,"version":"4.1.0"},"reference-count":57,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2004,2,16]],"date-time":"2004-02-16T00:00:00Z","timestamp":1076889600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Chemistry A European J"],"published-print":{"date-parts":[[2004,2,20]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Pure maghemite, \u03b3\u2010Fe\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    , was prepared as ultra fine particles in the nanometer\u2010sized range via the forced precipitation method in an organic solvent. The precipitation of iron(\n                    <jats:sc>III<\/jats:sc>\n                    ) ions, from iron(\n                    <jats:sc>III<\/jats:sc>\n                    ) chloride in 2\u2010propanol led selectively to highly dispersed particles of ferrihydrite, which upon treatment with temperatures higher than 200\u2009\u00b0C under dynamic vacuum resulted in high\u2010surface\u2010area particles of \u03b3\u2010Fe\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    . Precipitation in water also led to ferrihydrite, but the final product, after heating at 300\u2009\u00b0C, contained a mixture of \u03b3\u2010Fe\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    and \u03b1\u2010Fe\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    (hematite). The precipitation from iron(\n                    <jats:sc>III<\/jats:sc>\n                    ) nitrate in water resulted in goethite which was converted to hematite upon heating. On the other hand, the final product in 2\u2010propanol was a mixture of maghemite and hematite. The products were characterized by FTIR, TGA, XRD, and gas sorption analysis. Nitrogen gas adsorption studies for the pure \u03b3\u2010Fe\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    samples revealed mesoporous particles with high surface areas in the range of 70\u2013120 m\n                    <jats:sup>2<\/jats:sup>\n                    \u2009g\n                    <jats:sup>\u22121<\/jats:sup>\n                    after heat treatment at 300\u2009\u00b0C. The \u03b3\u2010Fe\n                    <jats:sub>2<\/jats:sub>\n                    O\n                    <jats:sub>3<\/jats:sub>\n                    particles retained their \u03b3\u2010phase as well as their mesoporous structure at relatively high temperatures, as high as 400\u2009\u00b0C.\n                  <\/jats:p>","DOI":"10.1002\/chem.200305135","type":"journal-article","created":{"date-parts":[[2004,2,17]],"date-time":"2004-02-17T04:00:34Z","timestamp":1076990434000},"page":"925-932","source":"Crossref","is-referenced-by-count":58,"title":["Nanostructured Pure \u03b3\u2010Fe\n                    <sub>2<\/sub>\n                    O\n                    <sub>3<\/sub>\n                    via Forced Precipitation in an Organic Solvent"],"prefix":"10.1002","volume":"10","author":[{"given":"Abbas A.","family":"Khaleel","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2004,2,16]]},"reference":[{"key":"e_1_2_6_1_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0304-8853(00)01226-9"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1006\/jcis.1998.6053"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1021\/cm960157j"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/0471220620.ch6"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0926-3373(01)00224-7"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1381-1169(99)00297-6"},{"key":"e_1_2_6_7_2","unstructured":"\u00a0"},{"key":"e_1_2_6_8_2","first-page":"99","volume":"33","author":"Khaleel A.","year":"1995","journal-title":"High Temp. 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