Enhancing electrochemical performance and magnetic properties of FeVO_(4) nanoparticles by Ni-doping: The role of Ni contents  

作　　者：Jessada Khajonrit Thongsuk Sichumsaeng Pinit Kidkhunthod Supree Pinitsoontorn Niwat Hemha Kittima Salangsing Anissa Srisongmueang Santi Maensiri 

机构地区：[1]Department of Science and Mathematics,Faculty of Science and Health Technology,Kalasin University,Kalasin 46000,Thailand [2]The Office of Disease Prevention and Control-Region 4,Department of Disease Control,Ministry of Public Health,Saraburi 18120,Thailand [3]Synchrotron Light Research Institute(Public Organisation),Nakhon Ratchasima 30000,Thailand [4]Department of Physics,Faculty of Science,Khon Kaen University,Khon Kaen 40002,Thailand [5]School of Physics,Institute of Science,Suranaree University of Technology,Nakhon Ratchasima,30000 Thailand

出　　处：《International Journal of Minerals,Metallurgy and Materials》2025年第4期944-953,共10页矿物冶金与材料学报(英文版)

摘　　要：The Fe_(1−x)Ni_(x)VO_(4)(x=0,0.05,0.10,and 0.20)nanoparticles in this work were successfully synthesized via a co-precipitation method.The structural,magnetic and electrochemical properties of the prepared Fe_(1−x)Ni_(x)VO_(4) nanoparticles were studied as a function of Ni content.The experimental results show that the prepared Ni-doped FeVO_(4) samples have a triclinic structure.Scanning electron microscopy(SEM)images reveal a decrease in average nanoparticle size with increasing Ni content,leading to an enhancement in both specific surface area and magnetization values.X-ray absorption near edge structure(XANES)analysis confirms the substitution of Ni^(2+)ions into Fe^(3+)sites.The magnetic investigation reveals that Ni-doped FeVO_(4) exhibits weak ferromagnetic behavior at room temperature,in contrast to the antiferromagnetic behavior observed in the undoped FeVO_(4).Electrochemical studies demonstrate that the Fe_(0.95)Ni_(0.05)VO_(4) electrode achieves the highest specific capacitance of 334.05 F·g^(−1) at a current density of 1 A·g^(−1),which is attributed to its smallest average pore diameter.In addition,the enhanced specific surface of the Fe_(0.8)Ni_(0.2)VO_(4) electrode is responsible for its outstanding cyclic stability.Overall,our results suggest that the magnetic and electrochemical properties of FeVO_(4) nanoparticles could be effectively tuned by varying Ni doping contents.

关 键 词：iron vanadate(FeVO_(4)) co-precipitation method Ni doping content magnetic properties electrochemical properties 

分 类 号：O61[理学—无机化学]