Introducing Materials Science: Experimenting with Magnetic Nanomaterials in the Undergraduate Chemistry Laboratory.
| Autor: | Regan A; School of Chemistry, Trinity College Dublin, College Green, Dublin D02 PN40, Ireland.; CDT ACM, AMBER, Trinity College Dublin, College Green, Dublin D02 PN40, Ireland., O'Donoghue J; School of Chemistry, Trinity College Dublin, College Green, Dublin D02 PN40, Ireland., Poree C; School of Chemistry, Trinity College Dublin, College Green, Dublin D02 PN40, Ireland., Dunne PW; School of Chemistry, Trinity College Dublin, College Green, Dublin D02 PN40, Ireland. |
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| Jazyk: | angličtina |
| Zdroj: | Journal of chemical education [J Chem Educ] 2023 May 08; Vol. 100 (6), pp. 2387-2393. Date of Electronic Publication: 2023 May 08 (Print Publication: 2023). |
| DOI: | 10.1021/acs.jchemed.3c00121 |
| Abstrakt: | Materials science research has expanded significantly in recent years; a multidisciplinary field, home to an ever-growing number of chemists. However, our general chemistry degree courses have not changed to reflect the rise in interest in this topic. In this paper, we propose a laboratory experiment for the undergraduate chemistry practical course, which may serve as a hands-on introduction to this field. The experiment involves the synthesis and characterization of magnetic materials via commonly employed techniques in materials science. Students begin by producing three metal ferrite spinels using a sol-gel combustion synthesis. They must then characterize the differing magnetic properties across their three samples using a magnetic susceptibility balance. In the second part of the experiment, students must create a ferrofluid via coprecipitation, from which they may observe the phenomenon of "spiking" in response to an external magnet. Additional data such as X-ray diffraction (XRD) patterns and transmission electron microscopy (TEM) images corresponding to these materials are also provided, and students are tasked with the interpretation of these data in their writeup report. Upon completion, students should gain a new-found understanding of materials science and its fundamental overlap with chemistry. Competing Interests: The authors declare no competing financial interest. (© 2023 The Authors. Published by American Chemical Society and Division of Chemical Education, Inc.) |
| Databáze: | MEDLINE |
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