Synthesis of Anisotropic Metal Oxide Nanoparticles via Non-Aqueous and Non-Hydrolytic Routes
Due to their low cost, high stability and low toxicity, metal oxide nanomaterials are widely used for applications in various fields such as electronics, cosmetics and photocatalysis. There is an increasing demand thereby for nanoparticles with highly defined properties, in particular a narrow parti...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Hosokawa Powder Technology Foundation
2023-08-01
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| Series: | KONA Powder and Particle Journal |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/kona/41/0/41_2024014/_html/-char/en |
| _version_ | 1797290911637438464 |
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| author | Sherif Okeil Julian Ungerer Hermann Nirschl Georg Garnweitner |
| author_facet | Sherif Okeil Julian Ungerer Hermann Nirschl Georg Garnweitner |
| author_sort | Sherif Okeil |
| collection | DOAJ |
| description | Due to their low cost, high stability and low toxicity, metal oxide nanomaterials are widely used for applications in various fields such as electronics, cosmetics and photocatalysis. There is an increasing demand thereby for nanoparticles with highly defined properties, in particular a narrow particle size distribution and a well-defined morphology. Such products can be obtained under high control via bottom-up synthesis approaches. Although aqueous processes are largely found in literature, they often lead to particles with low crystallinity and broad size distribution. Thus, there has been a growing trend towards the use of non-aqueous and non-hydrolytic synthesis routes. Through variation of the reaction medium and the use of adequate additives, such non-aqueous systems can be tuned to adapt the product properties, and especially to yield anisotropic nanoparticles with peculiar shapes and even complex architectures. Anisotropic particle growth enables the exposure of specific facets of the oxide nanocrystal, leading to extraordinary properties such as enhanced catalytic activity. Thus, there is an increasing demand for anisotropic nanoparticles with tailored morphologies. In this review, the non-aqueous and non-hydrolytic synthesis of anisotropic metal oxide nanoparticles is presented, with a particular focus on the different parameters resulting in anisotropic growth to enable the rational design of specific morphologies. Furthermore, secondary phenomena occurring during anisotropic particle growth, such as oriented attachment mechanisms, will be discussed. |
| first_indexed | 2024-03-07T19:29:07Z |
| format | Article |
| id | doaj.art-96acfd7857fe411b9f89e1954d8dab1d |
| institution | Directory Open Access Journal |
| issn | 0288-4534 2187-5537 |
| language | English |
| last_indexed | 2024-03-07T19:29:07Z |
| publishDate | 2023-08-01 |
| publisher | Hosokawa Powder Technology Foundation |
| record_format | Article |
| series | KONA Powder and Particle Journal |
| spelling | doaj.art-96acfd7857fe411b9f89e1954d8dab1d2024-02-29T09:01:04ZengHosokawa Powder Technology FoundationKONA Powder and Particle Journal0288-45342187-55372023-08-0141019722010.14356/kona.2024014konaSynthesis of Anisotropic Metal Oxide Nanoparticles via Non-Aqueous and Non-Hydrolytic RoutesSherif Okeil0Julian Ungerer1Hermann Nirschl2Georg Garnweitner3Institute for Particle Technology, Technische Universität Braunschweig, GermanyInstitute for Mechanical Process Engineering and Mechanics, Karlsruhe Institute of Technology (KIT), GermanyInstitute for Mechanical Process Engineering and Mechanics, Karlsruhe Institute of Technology (KIT), GermanyInstitute for Particle Technology, Technische Universität Braunschweig, GermanyDue to their low cost, high stability and low toxicity, metal oxide nanomaterials are widely used for applications in various fields such as electronics, cosmetics and photocatalysis. There is an increasing demand thereby for nanoparticles with highly defined properties, in particular a narrow particle size distribution and a well-defined morphology. Such products can be obtained under high control via bottom-up synthesis approaches. Although aqueous processes are largely found in literature, they often lead to particles with low crystallinity and broad size distribution. Thus, there has been a growing trend towards the use of non-aqueous and non-hydrolytic synthesis routes. Through variation of the reaction medium and the use of adequate additives, such non-aqueous systems can be tuned to adapt the product properties, and especially to yield anisotropic nanoparticles with peculiar shapes and even complex architectures. Anisotropic particle growth enables the exposure of specific facets of the oxide nanocrystal, leading to extraordinary properties such as enhanced catalytic activity. Thus, there is an increasing demand for anisotropic nanoparticles with tailored morphologies. In this review, the non-aqueous and non-hydrolytic synthesis of anisotropic metal oxide nanoparticles is presented, with a particular focus on the different parameters resulting in anisotropic growth to enable the rational design of specific morphologies. Furthermore, secondary phenomena occurring during anisotropic particle growth, such as oriented attachment mechanisms, will be discussed.https://www.jstage.jst.go.jp/article/kona/41/0/41_2024014/_html/-char/ennon-aqueous synthesisnon-hydrolytic synthesisanisotropic nanoparticlesmetal oxidesoriented attachment |
| spellingShingle | Sherif Okeil Julian Ungerer Hermann Nirschl Georg Garnweitner Synthesis of Anisotropic Metal Oxide Nanoparticles via Non-Aqueous and Non-Hydrolytic Routes KONA Powder and Particle Journal non-aqueous synthesis non-hydrolytic synthesis anisotropic nanoparticles metal oxides oriented attachment |
| title | Synthesis of Anisotropic Metal Oxide Nanoparticles via Non-Aqueous and Non-Hydrolytic Routes |
| title_full | Synthesis of Anisotropic Metal Oxide Nanoparticles via Non-Aqueous and Non-Hydrolytic Routes |
| title_fullStr | Synthesis of Anisotropic Metal Oxide Nanoparticles via Non-Aqueous and Non-Hydrolytic Routes |
| title_full_unstemmed | Synthesis of Anisotropic Metal Oxide Nanoparticles via Non-Aqueous and Non-Hydrolytic Routes |
| title_short | Synthesis of Anisotropic Metal Oxide Nanoparticles via Non-Aqueous and Non-Hydrolytic Routes |
| title_sort | synthesis of anisotropic metal oxide nanoparticles via non aqueous and non hydrolytic routes |
| topic | non-aqueous synthesis non-hydrolytic synthesis anisotropic nanoparticles metal oxides oriented attachment |
| url | https://www.jstage.jst.go.jp/article/kona/41/0/41_2024014/_html/-char/en |
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