Synthesis and characterization of Nano NiCo2O4 by microwave promoted precipitation method

6th Annual International Conference on Material Science and Engineering

Yang, M.^1 ; Chen, A.^1 ; Zhang, Y.^1 ; Le, L.^1

School of Environment and Chemical Engineering, Dalian Jiaotong University, Dalian

116028, China^1

关键词: Brunauer-Emmett-Teller techniques;    Calcination treatment;    Field emission scanning electron microscopy;    Narrow pore size distributions;    Optimal reaction condition;    Precipitation methods;    Structure and morphology;    Synthesis and characterizations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/397/1/012087/pdf
DOI  :  10.1088/1757-899X/397/1/012087

来源: IOP

【 摘 要 】

Nanostructured spinel NiCo2O4 was synthesized via a facile and effective microwave promoted precipitation method with a simple post-calcination treatment. The crystalline and textural structure and morphology of the samples were characterized by X-ray diffraction, field-emission scanning electron microscopy, and Brunauer-Emmett-Teller techniques. The influence of several parameters on the morphology of NiCo2O4, such as Ni/Co mole ratio, amount of precipitation agent urea, amount of ethylene glycol (EG), were investigated, and the optimal reaction conditions (Ni/Co = 1.0:2.5, urea 0.30 g, and EG 30 ml) were obtained. Under the optimal reaction conditions, the prepared spinel NiCo2O4 has a regular porous nanosheet structure. The nanosheet spinel NiCo2O4 possesses a high surface area of 124.8 m2/g, a narrow pore size distribution of 3-10 nm, and a mean pore diameter of 5.4 nm.