当前位置: X-MOL 学术Indian J. Phys. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effect of Mg doping on the electrical, dielectric and relaxation properties of LiMnPO 4 nanoparticles
Indian Journal of Physics ( IF 2 ) Pub Date : 2021-03-08 , DOI: 10.1007/s12648-021-02023-2
B. Nageswara Rao , D. Narsimulu , N. Satyanarayana

LiMnPO4 and LiMn0.9Mg0.1PO4 nanostructures were synthesized by a rapid microwave-assisted solvothermal method. Powder X-ray diffraction (XRD) studies confirmed the orthorhombic crystal structure of LiMnPO4 and LiMn0.9Mg0.1PO4 nanostructures. It is also noticed that the Mg2+ ions doping into manganese sites did not affect the crystal structure of LiMnPO4. The scanning electron microscope (SEM) micrographs of LiMnPO4 and LiMn0.9Mg0.1PO4 showed the formation of nanoparticles with mixed morphology, i.e., spherical particle morphology and one-dimensional nanorod morphology. The LiMn0.9Mg0.1PO4 nanoparticles exhibited an improved electrical properties compared to that of LiMnPO4 nanoparticles. At room temperature, LiMn0.9Mg0.1PO4 nanoparticles exhibited an electrical conductivity of 3.705 × 10–7 S cm−1. The dielectric constant of LiMnPO4 and LiMn0.9Mg0.1PO4 nanostructures is high at low frequencies and decreases gradually towards high frequencies. The LiMnPO4 and LiMn0.9Mg0.1PO4 nanostructures are found to exhibit non-Debye-type relaxation behavior.



中文翻译:

镁掺杂对LiMnPO 4纳米粒子电,介电和弛豫性能的影响

通过微波辅助溶剂热法合成了LiMnPO 4和LiMn 0.9 Mg 0.1 PO 4纳米结构。粉末X射线衍射(XRD)研究证实了LiMnPO 4和LiMn 0.9 Mg 0.1 PO 4纳米结构的正交晶体结构。还注意到,掺杂到锰位点中的Mg 2+离子不影响LiMnPO 4的晶体结构。LiMnPO 4和LiMn 0.9 Mg 0.1 PO 4的扫描电子显微镜(SEM)显微照片显示出具有混合形态的纳米粒子的形成,即球形粒子形态和一维纳米棒形态。与LiMnPO 4纳米颗粒相比,LiMn 0.9 Mg 0.1 PO 4纳米颗粒表现出改善的电性能。在室温下,LiMn 0.9 Mg 0.1 PO 4纳米颗粒的电导率为3.705×10 –7 S cm -1。LiMnPO 4和LiMn 0.9 Mg 0.1 PO 4的介电常数纳米结构在低频时较高,并向高频逐渐减小。发现LiMnPO 4和LiMn 0.9 Mg 0.1 PO 4纳米结构表现出非德拜型弛豫行为。

更新日期:2021-03-09
down
wechat
bug