Physiochemical Characterization of Iodine (V) Oxide Part II: Morphology and Crystal Structure of Particulate Films
In this study, the production of particulate films of iodine (V) oxides is investigated. The influence that sonication and solvation of suspended particles in various alcohol/ketone/ester solvents have on the physical structure of spin or drop cast films is examined in detail with electron microscop...
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-11-01
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| Series: | Crystals |
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| Online Access: | http://www.mdpi.com/2073-4352/5/4/534 |
| _version_ | 1811184952025284608 |
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| author | Brian K. Little Samuel B. Emery C. Michael Lindsay |
| author_facet | Brian K. Little Samuel B. Emery C. Michael Lindsay |
| author_sort | Brian K. Little |
| collection | DOAJ |
| description | In this study, the production of particulate films of iodine (V) oxides is investigated. The influence that sonication and solvation of suspended particles in various alcohol/ketone/ester solvents have on the physical structure of spin or drop cast films is examined in detail with electron microscopy, powder x-ray diffraction, and UV-visible absorption spectroscopy. Results indicate that sonicating iodine oxides in alcohol mixtures containing trace amounts of water decreases deposited particle sizes and produces a more uniform film morphology. UV-visible spectra of the pre-cast suspensions reveal that for some solvents, the iodine oxide oxidizes the solvent, producing I2 and lowering the pH of the suspension. Characterizing the crystals within the cast films reveal their composition to be primarily HI3O8, their orientations to exhibit a preferential orientation, and their growth to be primarily along the ac-plane of the crystal, enhanced at higher spin rates. Spin-coating at lower spin rates produces laminate-like particulate films versus higher density, one-piece films of stacked particles produced by drop casting. The particle morphology in these films consists of a combination of rods, plates, cubes, and rhombohedra structure. |
| first_indexed | 2024-04-11T13:22:01Z |
| format | Article |
| id | doaj.art-0a494769120b49fd9a74884ebb787316 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-11T13:22:01Z |
| publishDate | 2015-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-0a494769120b49fd9a74884ebb7873162022-12-22T04:22:11ZengMDPI AGCrystals2073-43522015-11-015453455010.3390/cryst5040534cryst5040534Physiochemical Characterization of Iodine (V) Oxide Part II: Morphology and Crystal Structure of Particulate FilmsBrian K. Little0Samuel B. Emery1C. Michael Lindsay2University of Dayton Research Institute, U.S. Air Force Research Laboratory, Eglin AFB, FL 32542, USANaval Surface Warfare Center Indian Head Explosive Ordinance Technology Division, Indian Head, MD 20640, USAAir Force Research Laboratory, Energetic Materials Branch, Eglin AFB, FL 32542, USAIn this study, the production of particulate films of iodine (V) oxides is investigated. The influence that sonication and solvation of suspended particles in various alcohol/ketone/ester solvents have on the physical structure of spin or drop cast films is examined in detail with electron microscopy, powder x-ray diffraction, and UV-visible absorption spectroscopy. Results indicate that sonicating iodine oxides in alcohol mixtures containing trace amounts of water decreases deposited particle sizes and produces a more uniform film morphology. UV-visible spectra of the pre-cast suspensions reveal that for some solvents, the iodine oxide oxidizes the solvent, producing I2 and lowering the pH of the suspension. Characterizing the crystals within the cast films reveal their composition to be primarily HI3O8, their orientations to exhibit a preferential orientation, and their growth to be primarily along the ac-plane of the crystal, enhanced at higher spin rates. Spin-coating at lower spin rates produces laminate-like particulate films versus higher density, one-piece films of stacked particles produced by drop casting. The particle morphology in these films consists of a combination of rods, plates, cubes, and rhombohedra structure.http://www.mdpi.com/2073-4352/5/4/534iodine (V) oxideiodine pentoxideI2O5hydrogen iodatetriperiodic acidHI3O8HIO3-I2O5iodic acidHIO3spin coatingdrop castingfilm |
| spellingShingle | Brian K. Little Samuel B. Emery C. Michael Lindsay Physiochemical Characterization of Iodine (V) Oxide Part II: Morphology and Crystal Structure of Particulate Films Crystals iodine (V) oxide iodine pentoxide I2O5 hydrogen iodate triperiodic acid HI3O8 HIO3-I2O5 iodic acid HIO3 spin coating drop casting film |
| title | Physiochemical Characterization of Iodine (V) Oxide Part II: Morphology and Crystal Structure of Particulate Films |
| title_full | Physiochemical Characterization of Iodine (V) Oxide Part II: Morphology and Crystal Structure of Particulate Films |
| title_fullStr | Physiochemical Characterization of Iodine (V) Oxide Part II: Morphology and Crystal Structure of Particulate Films |
| title_full_unstemmed | Physiochemical Characterization of Iodine (V) Oxide Part II: Morphology and Crystal Structure of Particulate Films |
| title_short | Physiochemical Characterization of Iodine (V) Oxide Part II: Morphology and Crystal Structure of Particulate Films |
| title_sort | physiochemical characterization of iodine v oxide part ii morphology and crystal structure of particulate films |
| topic | iodine (V) oxide iodine pentoxide I2O5 hydrogen iodate triperiodic acid HI3O8 HIO3-I2O5 iodic acid HIO3 spin coating drop casting film |
| url | http://www.mdpi.com/2073-4352/5/4/534 |
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