Desiraju, Gautam R. ; Rao, Madan (1982) A mild transformation of γ-FeOOH to γ-Fe2O3 using organic reagents Materials Research Bulletin, 17 (4). pp. 443-449. ISSN 0025-5408
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/002554...
Related URL: http://dx.doi.org/10.1016/0025-5408(82)90098-8
Abstract
The layered compound, FeOCl is known to form stable intercalates with a large number of organic molecules. When the isostructural γ-FeOOH is treated with organic bases at temperatures of-140°C, it is quantitatively converted to the topotactically related γ -Fe2O3. The first step in this base assisted dehydration is presumed to be an intercalation. The second and possibly faster step could be a sequential elimination of water from the interlayer, the role of the base being catalytic. Slightly impure samples of γ-FeOOH that contain a small (5%) amount of α -FeOOH are transformed quantitatively into α -Fe2O3 under the above conditions but pure α-FeOOH is unaffected. A possible rationale for this observation is given.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 10956 |
| Deposited On: | 08 Nov 2010 04:58 |
| Last Modified: | 28 May 2011 11:15 |
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