Synthesis and characterisation of FeTiO3 perovskite nanomaterials for electrochemical energy storage application

Srither, Satturappa Ravisekaran1; Dhineshbabu, Nattanmai Raman2

2019-05

10.1049/mnl.2018.5646

Micro & Nano Letters   影响因子和分区

1750-0443

In this study, ilmenite [iron titanate (FeTiO3)] perovskite nanoparticles were synthesised by wet chemical method and sintered at two temperatures, namely 350 degrees C (FT350) and 500 degrees C (FT500). The phase structure, crystallinity, microstructure, particle size, and purity of the sintered samples were extensively studied. Electrochemical measurements such as cyclic voltammetric studies, electrochemical impedance spectroscopy (EIS), and discharge measurements were carried out. The results of the cyclic voltammetric studies showed that sample prepared at 500 degrees C delivers high specific capacitance (42 F g(-1)), which is significantly greater as compared to that of 350 degrees C sample. Moreover, the results of the EIS study show that 500 degrees C delivers better capacitance than 350 degrees C. The FeTiO3 samples sintered at 350 and 500 degrees C used as cathodes in a novel Mg/FeTiO3 cell delivered a discharge capacity of 129 and 90 mA h g(-1), respectively. According to the study's data, for the first time it has confirmed that FeTiO3 is suitable for using it as a cathode material in Mg/FeTiO3 primary cell. The discharge capacity of 500 degrees C was found to be 70% higher when compared to 350 degrees C. Thus, the proposed results show that the electrochemical behaviour of the sintered sample 500 degrees C is superior to that of 350 degrees C.

electrochemical impedance spectroscopy sintering nanofabrication nanoparticles electrochemical electrodes particle size voltammetry (chemical analysis) capacitance magnesium iron compounds crystal microstructure primary cells perovskite nanoparticles wet chemical method phase structure discharge capacity electrochemical energy storage ilmenite cyclic voltammetry specific capacitance EIS primary cell iron titanate crystallinity microstructure cathode material temperature 350 0 degC temperature 500 Mg-FeTiO3

SCI ; EI

英语

第一 ; 通讯

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000472681500003

INST ENGINEERING TECHNOLOGY-IET

20191906893993

Capacitance ; Cathodes ; Crystallinity ; Digital storage ; Electric discharges ; Electrochemical impedance spectroscopy ; Particle size ; Perovskite ; Sintering

Minerals:482.2 ; Electricity: Basic Concepts and Phenomena:701.1 ; Data Storage, Equipment and Techniques:722.1 ; Chemistry:801

Web of Science

1.South Univ Sci & Technol, Dept Phys, Shenzhen, Peoples R China
2.Indian Inst Sci, Dept Mat Engn, Bangalore, Karnataka, India

Srither, Satturappa Ravisekaran,Dhineshbabu, Nattanmai Raman. Synthesis and characterisation of FeTiO3 perovskite nanomaterials for electrochemical energy storage application[J]. Micro & Nano Letters,2019,14(5):475-478.

Srither, Satturappa Ravisekaran,&Dhineshbabu, Nattanmai Raman.(2019).Synthesis and characterisation of FeTiO3 perovskite nanomaterials for electrochemical energy storage application.Micro & Nano Letters,14(5),475-478.

Srither, Satturappa Ravisekaran,et al."Synthesis and characterisation of FeTiO3 perovskite nanomaterials for electrochemical energy storage application".Micro & Nano Letters 14.5(2019):475-478.