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.

引用

页数：14

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