| DOI | Resolve DOI: https://doi.org/10.1557/jmr.2015.150 |
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| Author | Search for: Karim, Mohammad Rezaul; Search for: Bhuiyan, Mohammad Tauhidul Islam; Search for: Dar, Mushtaq Ahmad; Search for: Seikh, Asiful Hossain; Search for: Shar, Muhammad Ali; Search for: Zaman, Mohammed Badruz1; Search for: Lee, Chul Jae; Search for: Kim, Hee Jin; Search for: Lee, Mu Sang |
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| Affiliation | - National Research Council of Canada
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| Format | Text, Article |
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| Subject | Crystalline materials; Crystallite size; Dielectric properties; Dissolution; Metals; Microporosity; MOS devices; Nanoparticles; Nanostructures; Semiconductor materials; Synthesis (chemical); X ray diffraction; Dissolution-reprecipitation; Flower-like structures; High specific surface area; Interconnected network; Metal oxide semiconductor; Rutile TiO; Synthesis and characterizations; Transmission electron micrograph; Oxide minerals |
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| Abstract | Rutile nanoparticles have been synthesized by acid hydrolysis of titanium isopropoxide by low-temperature dissolution-reprecipitation process. High-resolution transmission electron micrographs of the rutile colloidal solution show needle-shaped rutile nanoparticles with the dimensions of 10-30 nm in diameter and 100-150 nm in length. X-ray diffraction (XRD) data show the existence of only the rutile polymorph in TiO<inf>2</inf> powder with a crystallite size of 11.3 nm. The dielectric constant of rutile nanoparticles has been found to be 57 at 10 MHz AC frequency and DC conductance as 2.3 × 10-6 S/cm. Transmission electron micrographs and XRD data analysis imply that the rutile crystallites are self-organized in a regular fashion to produce multilayer three-dimensional linear clusters. The clusters have been found to be microporous (average porosity 1.4 nm) with high specific surface area (132.2 m2/g). At higher concentration, the clusters aggregate to produce interconnected network of star- or flower-like structures. This organized crystalline microporous metal-oxide semiconductor might find various practical applications. |
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| Publication date | 2015-06-28 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21275655 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 68f1e0b4-14a6-49c0-a34a-1c8cc289d3f6 |
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| Record created | 2015-07-14 |
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| Record modified | 2020-04-22 |
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