Outstanding supercapacitor performance of Nd-Mn co-doped perovskite LaFeO3@nitrogen-doped graphene oxide nanocomposites

被引：98
作者：
Rezanezhad, Armin [1 ,2 ]
Rezaie, Ehsan [1 ,2 ]
Ghadimi, Laleh Saleh [2 ]
Hajalilou, Abdollah [1 ,2 ]
Abouzari-Lotf, Ebrahim [3 ,4 ]
Arsalani, Nasser [2 ]
机构：
[1] Univ Tabriz, Dept Mat Sci & Engn, Fac Mech Engn, Tabriz 5166616471, Iran
[2] Univ Tabriz, Fac Chem, Dept Organ & Biochem, Res Lab Polymer, Tabriz, Iran
[3] Univ Technol Malaysia, Ctr Hydrogen Energy, Adv Mat Res Grp, Kuala Lumpur 54100, Malaysia
[4] Helmholtz Inst Ulm HIU HIU Electrochem Energy Sto, Helmholtzstr 11, D-89081 Ulm, Germany
来源：
ELECTROCHIMICA ACTA | 2020年 / 335卷
关键词：
Lanthanum ferrite; Co-doped perovskite; N-doped graphene oxide nanocomposite; Supercapacitor; ELECTRODE MATERIAL; ELECTROCHEMICAL PROPERTIES; HYDROTHERMAL SYNTHESIS; LAFEO3; NANOPARTICLES; MAGNETIC-PROPERTIES; CYCLIC VOLTAMMETRY; POROUS LAFEO3; CAPACITANCE; COMPOSITE; CHRONOPOTENTIOMETRY;
D O I：
10.1016/j.electacta.2020.135699
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Perovskites have been significantly considered as promising materials for electrochemical energy storage in the recent years. Co-doping of Mn and Nd with hydrothermally synthesized LaFeO3 (LF) perovskite resulted in La0.8Nd0.2Fe0.8Mn0.2O3 (LNFM) with significantly higher specific capacitance of 158 F/g at 50 mV/s compared to non-doped and single doped LF samples. Subsequently, LNFM/nitrogen-doped graphene oxide (NGO) nanocomposite was prepared and investigated. It was found out that the introducing of NGO substantially enhances the specific capacitance of the nanocomposite up to 1060 F/g at 50 mV/s. Besides, the composite revealed outstanding capacity retention as 92.4% after 10000 continuous cycle (85.37% for the LNFM sample). In overall, the electrochemical behavior of the composite with 1:1 ratio of LNFM/NGO confirms its high potential as supercapacitor for energy storage applications. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：14
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