Hydrothermal synthesis and indication of room temperature ferromagnetism in CeO2 nanowires |
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| Authors: | M.S. Anwar Shalendra Kumar Faheem Ahmed Nishat Arshi Gyung-Suk Kil Dae-Won Park Jiho Chang Bon Heun Koo |
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| Affiliation: | 1. School of Nano and Advanced Materials Engineering, Changwon National University, Changwon, Gyeongnam, 641-773, Republic of Korea;2. Division of Electrical and Electronics Engineering, Korea Maritime University, 1, Dongsam-Dong, Yeongdo-Gu, Busan 606-791, Republic of Korea;3. Major of Semiconductor Physics, Korea Maritime University, 1, Dongsam-Dong, Yeongdo-Gu, Busan 601-080, Republic of Korea;1. College of Materials and Chemical Engineering, China Three Gorges University 8 Daxue Road, Yichang, Hubei 443002, China;2. Collaborative Innovation Center for Microgrid of New Energy, Yichang, Hubei 443002, China;1. Material Science and Engineering School, Zhengzhou University, Zhengzhou, 450001, China;2. Chemical Engineering and Pharmaceutics School, Henan University of Science and Technology, Luoyang, 471023, China;1. College of Chemistry and Bioengineering, Guilin University of Technology, Collaborative Innovation Center for Exploration of Hidden Nonferrous Metal Deposits, Development of New Materials in Guangxi, Guilin 541004, China;2. Guangxi Solid Waste Management Center, Nanning 530028, China |
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| Abstract: | Bundle of CeO2 nanowires have been successfully synthesized by a simple hydrothermal process using Ce(NO3)3·6H2O as cerium source and NaH2PO4·2H2O as mineralizer, into which no surfactant or template was introduced. The synthesized nanowires were characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDS), Raman spectroscopy and magnetization measurements. The XRD results indicated that CeO2 nanowires have fluorite structure. Magnetization measurements indicate that CeO2 nanowires exhibit room temperature ferromagnetism with remanent magnetization (Mr) and coercivity (HC) of about 7.44 × 10? 4 (emu/g) and 27.19 Oe, respectively, which may results due to the presence of defects in the CeO2 nanowires. |
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