Effect of Ce Doping on the Structure and Chemical Stability of Nano-α-Fe<sub>2</sub>O<sub>3</sub>
Junxiang Ning,
Peiyang Shi,
Maofa Jiang,
Chengjun Liu,
Xiaoliang Li
Affiliations
Junxiang Ning
Key Laboratory for Ecological Metallurgy of Multimetallic Ores (Ministry of Education), School of Metallurgy, Northeastern University, Wenhua Road, Heping District, Shenyang 110819, China
Peiyang Shi
Key Laboratory for Ecological Metallurgy of Multimetallic Ores (Ministry of Education), School of Metallurgy, Northeastern University, Wenhua Road, Heping District, Shenyang 110819, China
Maofa Jiang
Key Laboratory for Ecological Metallurgy of Multimetallic Ores (Ministry of Education), School of Metallurgy, Northeastern University, Wenhua Road, Heping District, Shenyang 110819, China
Chengjun Liu
Key Laboratory for Ecological Metallurgy of Multimetallic Ores (Ministry of Education), School of Metallurgy, Northeastern University, Wenhua Road, Heping District, Shenyang 110819, China
Xiaoliang Li
School of Metallurgical Engineering, Liaoning Institute of Science and Technology, Liaoning, Fragrance of huaihe road, High-tech Industrial Development District, Benxi 117004, China
Ce-doped nano-α-Fe2O3 was successfully synthesized via the hydrothermal method. The properties of the prepared particles were studied by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS) and electrochemical methods. It was found that the Ce element can be doped into the α-Fe2O3 lattice resulting in lattice distortion, which can refine the grain and improve the crystal surface’s integrity significantly. In addition, doping of Ce element can shorten the Fe−O bond length in the α-Fe2O3 crystal, cause a blue shift of the stretching vibration band, enhance binding energy of Fe−O and the chemical stability of the α-Fe2O3 crystal.
