In Situ Synthesis of Alumina Nanoparticles in a Binary Carbonate Salt Eutectic for Enhancing Heat Capacity.
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| Title: | In Situ Synthesis of Alumina Nanoparticles in a Binary Carbonate Salt Eutectic for Enhancing Heat Capacity. |
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| Authors: | Nayfeh, Yousof1 (AUTHOR) nayfe1y@cmich.edu, Rizvi, Syed Muhammad Mujtaba1 (AUTHOR), El Far, Baha1 (AUTHOR), Shin, Donghyun1 (AUTHOR) shin1d@cmich.edu |
| Source: | Nanomaterials (2079-4991). Nov2020, Vol. 10 Issue 11, p2131-2131. 1p. |
| Subjects: | Heat capacity, Alumina composites, Nanofluids, Transmission electron microscopes, Nanoparticles, Scanning electron microscopes, Melting points, Aluminum oxide |
| Abstract: | A binary carbonate salt eutectic (Li2CO3-K2CO3)-based nanofluid was in situ synthesized by mixing with a precursor material, aluminum nitrate nonahydrate (Al(NO3)3·9H2O). Thermal decomposition of the precursor was successfully carried out to synthesize alumina (Al2O3) nanoparticles at 1 wt.% concentration. A thermogravimetric analysis (TGA) confirmed a complete thermal decomposition of aluminum nitrate nonahydrate to alumina nanoparticles. A transmission electron microscope (TEM) was employed to confirm the size and shape of the in situ formed nanoparticles; the result showed that they are spherical in shape and the average size was 28.7 nm with a standard deviation of 11.7 nm. Electron dispersive X-ray spectroscopy (EDS) confirmed the observed nanoparticles are alumina nanoparticles. A scanning electron microscope (SEM) was employed to study microstructural changes in the salt. A differential scanning calorimeter (DSC) was employed to study the heat capacity of the in situ synthesized nanofluid. The result showed that the heat capacity was enhanced by 21% at 550 °C in comparison with pure carbonate salt eutectic. About 10–11 °C decrease of the onset melting point of the binary carbonate salt eutectic was observed for the in situ synthesized nanofluids. [ABSTRACT FROM AUTHOR] |
| Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 147204905 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: In Situ Synthesis of Alumina Nanoparticles in a Binary Carbonate Salt Eutectic for Enhancing Heat Capacity. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Nayfeh%2C+Yousof%22">Nayfeh, Yousof</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> nayfe1y@cmich.edu</i><br /><searchLink fieldCode="AR" term="%22Rizvi%2C+Syed+Muhammad+Mujtaba%22">Rizvi, Syed Muhammad Mujtaba</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22El+Far%2C+Baha%22">El Far, Baha</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shin%2C+Donghyun%22">Shin, Donghyun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> shin1d@cmich.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Nov2020, Vol. 10 Issue 11, p2131-2131. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Heat+capacity%22">Heat capacity</searchLink><br /><searchLink fieldCode="DE" term="%22Alumina+composites%22">Alumina composites</searchLink><br /><searchLink fieldCode="DE" term="%22Nanofluids%22">Nanofluids</searchLink><br /><searchLink fieldCode="DE" term="%22Transmission+electron+microscopes%22">Transmission electron microscopes</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopes%22">Scanning electron microscopes</searchLink><br /><searchLink fieldCode="DE" term="%22Melting+points%22">Melting points</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+oxide%22">Aluminum oxide</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A binary carbonate salt eutectic (Li2CO3-K2CO3)-based nanofluid was in situ synthesized by mixing with a precursor material, aluminum nitrate nonahydrate (Al(NO3)3·9H2O). Thermal decomposition of the precursor was successfully carried out to synthesize alumina (Al2O3) nanoparticles at 1 wt.% concentration. A thermogravimetric analysis (TGA) confirmed a complete thermal decomposition of aluminum nitrate nonahydrate to alumina nanoparticles. A transmission electron microscope (TEM) was employed to confirm the size and shape of the in situ formed nanoparticles; the result showed that they are spherical in shape and the average size was 28.7 nm with a standard deviation of 11.7 nm. Electron dispersive X-ray spectroscopy (EDS) confirmed the observed nanoparticles are alumina nanoparticles. A scanning electron microscope (SEM) was employed to study microstructural changes in the salt. A differential scanning calorimeter (DSC) was employed to study the heat capacity of the in situ synthesized nanofluid. The result showed that the heat capacity was enhanced by 21% at 550 °C in comparison with pure carbonate salt eutectic. About 10–11 °C decrease of the onset melting point of the binary carbonate salt eutectic was observed for the in situ synthesized nanofluids. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/nano10112131 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: 2131 Subjects: – SubjectFull: Heat capacity Type: general – SubjectFull: Alumina composites Type: general – SubjectFull: Nanofluids Type: general – SubjectFull: Transmission electron microscopes Type: general – SubjectFull: Nanoparticles Type: general – SubjectFull: Scanning electron microscopes Type: general – SubjectFull: Melting points Type: general – SubjectFull: Aluminum oxide Type: general Titles: – TitleFull: In Situ Synthesis of Alumina Nanoparticles in a Binary Carbonate Salt Eutectic for Enhancing Heat Capacity. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Nayfeh, Yousof – PersonEntity: Name: NameFull: Rizvi, Syed Muhammad Mujtaba – PersonEntity: Name: NameFull: El Far, Baha – PersonEntity: Name: NameFull: Shin, Donghyun IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 20794991 Numbering: – Type: volume Value: 10 – Type: issue Value: 11 Titles: – TitleFull: Nanomaterials (2079-4991) Type: main |
| ResultId | 1 |
