Sentetik Nanofabrikasyon Yöntemiyle Silika Kaplı Kobalt Nanoparçacıklarının Üretimi

Yıl 2023, Cilt: 39 Sayı: 2, 217 - 222, 31.08.2023

Yavuz Nuri Ertaş

Öz

Kobalt, periyodik tablodaki elementler arasında, oda sıcaklığında en yüksek ikinci manyetik elementtir ve bu, onu manyetik sensörler ve hafıza cihazlarından kataliz ve manyetik rezonans görüntülemeye kadar birçok uygulamada tercih edilen bir malzeme haline getirmiştir. Kobalt nanoparçacıkları genel itibariyle kimyasal yöntemlerle sentezlenmiştir. Bununla birlikte, sınırlı nanoparçacık boyutları ve saflık limitleri, geleneksel kimyasal sentez yaklaşımları göz önüne alındığında karşılaşılan en büyük zorluklardır. Kobalt nanoparçacıklarının potansiyelini tam olarak gerçekleştirmek için, bu araştırma, yüksek derecede manyetik ve yüzeyi pasifleştirilmiş kobalt nanoparçacıkları üretmek için ıslak kimya temelli olmayan, sentetik bir nanofabrikasyon yaklaşımını rapor etmektedir.

Anahtar Kelimeler

Nanoparçacık, Kobalt, Nanofabrikasyon, Manyetizma

Destekleyen Kurum

Tübitak

Proje Numarası

118C346

Production of Silica Coated Cobalt Nanoparticles Via A Synthetic Nanofabrication Method

Öz

Among the elements in the periodic table, cobalt is the second highest magnetic element at room temperature, which makes it a material of choice in many applications ranging from magnetic sensors and memory devices to catalysis and magnetic resonance imaging. Cobalt nanoparticles have been synthesized via chemical methods to further capitalize on its properties. However, limited range of nanoparticle sizes and purity is the biggest challenges encountered when traditional synthesis approaches are considered. In order to fully realize the potential of cobalt nanoparticles, this research repors a non chemistry based, synthetic nanofabrication approach to produce highly magnetic and surface passivated cobalt nanoparticles.

Anahtar Kelimeler

Nanoparticle, Cobalt, Nanofabrication, Magnetism

Proje Numarası

118C346

Kaynakça

• [1] Ansari, S. M., Bhor, R. D., Pai, K. R., Sen, D., Mazumder, S., Ghosh, K., Kolekar, Y. D., Ramana, C. V. Cobalt nanoparticles for biomedical applications: Facile synthesis, physiochemical characterization, cytotoxicity behavior and biocompatibility. Applied Surface Science, 414(2017), 171-187.
• [2] He, C., Song Q., Xinzhen W., Jiurong L., Liqiang L., Wei L., Masahiro I., Ken-ichi M. Facile synthesis of hollow porous cobalt spheres and their enhanced electromagnetic properties. Journal of Materials Chemistry, 22(2012), 22160-22166.
• [3] Wang, H., Xiang, L., Wei, W., An, J., He, J., Gong, C. and Hou, Y. Efficient and lightweight electromagnetic wave absorber derived from metal organic framework-encapsulated cobalt nanoparticles. ACS applied materials & interfaces, 9(2017), 42102-42110.
• [4] Thanh, N. T., Green, L. A. Functionalisation of nanoparticles for biomedical applications. Nano today, 5(2010), 213-230.
• [5] Panigrahi, S., Basu, S., Praharaj, S., Pande, S., Jana, S., Pal, A., Ghosh, S. K., Pal, T. Synthesis and size-selective catalysis by supported gold nanoparticles: study on heterogeneous and homogeneous catalytic process. The Journal of Physical Chemistry C, 111(2007), 4596-4605.
• [6] Kobayashi, Y., Horie, M., Konno, M., Rodríguez-González, B., Liz-Marzán, L. M. Preparation and properties of silica-coated cobalt nanoparticles. The Journal of Physical Chemistry B, 107(2003), 7420-7425.
• [7] Khusnuriyalova, A. F., Caporali, M., Hey‐Hawkins, E., Sinyashin, O. G., Yakhvarov, D. G. Preparation of cobalt nanoparticles. European Journal of Inorganic Chemistry, (30)2021, 3023-3047.
• [8] Salgueiriño-Maceira, V., Correa-Duarte, M. A. Cobalt and silica based core–shell structured nanospheres. Journal of Materials Chemistry, 16(2006), 3593-3597.
• [9] Srinivasan, S. Y., Paknikar, K. M., Bodas, D., Gajbhiye, V. Applications of cobalt ferrite nanoparticles in biomedical nanotechnology. Nanomedicine, 13(2018), 1221-1238.
• [10] Morcos, B., Lecante, P., Morel, R., Haumesser, P. H., Santini, C. C. Magnetic, structural, and chemical properties of cobalt nanoparticles synthesized in ionic liquids. Langmuir, 34(2018), 7086-7095.
• [11] Ertas, Y. N., Jarenwattananon, N. N., Bouchard, L. S. Oxide-free gadolinium nanocrystals with large magnetic moments. Chemistry of Materials, 27(2015), 5371-5376.
• [12] Ertas, Y. N., Bouchard, L. S. Controlled nanocrystallinity in Gd nanobowls leads to magnetization of 226 emu/g. Journal of Applied Physics, 121(2017), 093902.