Nanoscale Metastable ε-Fe 3 N Ferromagnetic Materials by Self-Sustained Reactions
| العنوان: | Nanoscale Metastable ε-Fe 3 N Ferromagnetic Materials by Self-Sustained Reactions |
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| المؤلفون: | Mukasyan, Alexander S., Roslyakov, Sergey, Pauls, Joshua M., Gallington, Leighanne C., Orlova, Tatyana, Liu, Xinyu, Dobrowolska, Margaret, Furdyna, Jacek K., Manukyan, Khachatur V. |
| سنة النشر: | 2020 |
| المجموعة: | SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
| مصطلحات موضوعية: | 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY |
| الوصف: | A single-step method for the preparation of metastable ε-Fe 3 N nanoparticles by combustion of reactive gels containing iron nitrate (Fe(NO 3 ) 3 ) and hexamethylenetetramine (C 6 H 12 N 4 ) in an inert atmosphere is reported. The results of Fourier transform infrared spectroscopy (FTIR) and thermal analysis coupled with dynamic mass spectrometry revealed that the exothermic decomposition of a coordination complex formed between Fe(NO 3 ) 3 and HMTA is responsible for the formation of ε-Fe 3 N nanoscale particles with sizes of 5-15 nm. The magnetic properties between 5 and 350 K are characterized using a superconducting quantum interference device (SQUID) magnetometer, revealing a ferromagnetic behavior with a low-temperature magnetic moment of 1.09 μB/Fe, high room temperature saturation magnetization (~80 emu/g), and low remanent magnetization (~15 emu/g). The obtained value for the Curie temperature of ~522 K is close to that (~575 K) for bulk ε-Fe 3 N reported in the literature. |
| نوع الوثيقة: | other/unknown material |
| وصف الملف: | application/pdf |
| اللغة: | unknown |
| العلاقة: | http://www.osti.gov/servlets/purl/1530155Test; https://www.osti.gov/biblio/1530155Test; https://doi.org/10.1021/acs.inorgchem.8b03553Test |
| DOI: | 10.1021/acs.inorgchem.8b03553 |
| الإتاحة: | https://doi.org/10.1021/acs.inorgchem.8b03553Test http://www.osti.gov/servlets/purl/1530155Test https://www.osti.gov/biblio/1530155Test |
| رقم الانضمام: | edsbas.117F5C5F |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acs.inorgchem.8b03553 |
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