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Title: Effect of doping on the performance of high-crystalline SrMnO 3 perovskite nanofibers as a supercapacitor electrode

Abstract

Perovskite oxides are promising multi-functional materials with enhanced physical and chemical properties. In this study, high-crystalline SrMnO 3 perovskite oxide nanofibers have been successfully synthesized by sol–gel electrospinning followed by calcination at different temperatures, using polyvinylpyrrolidone as a sacrificial polymeric binder. The change in porosity and grain size with calcination temperature imparted a substantial effect on the electrochemical properties of the obtained SrMnO 3 nanofibers. The SrMnO 3 nanofiber electrode calcined at 700 °C exhibits an electrochemical capacitance of 321.7 F g –1 at a discharge current density of 0.5 A g –1. Here, the effect of doping Ba/Ca on Sr, and Co/Fe/Ni on Mn, respectively, on the specific capacitance of SrMnO 3 nanofibers is studied. 20 mol% Ba loading shows the best performance as a supercapacitor electrode with a specific capacitance of 446.8 F g –1 at a discharge current density of 0.5 A g –1. The nanofibers retained 87% its initial capacitance after 5000 successive cycles. The device fabricated using the nanofibers show an energy density of 37.3 W h kg –1 at a power density of 400 W kg –1, and it is retained as 15.7 W h kg –1 even at a high-power density of 8006more » W kg –1, indicating the potential of this electrode material for high-rate charge/discharge operations in supercapacitors.« less

Authors:
 [1];  [1];  [1];  [2];  [3];  [3];  [3];  [1]
  1. Fayetteville State Univ., Fayetteville, NC (United States)
  2. Kunming Univ. of Science and Technology, Kunming (People's Republic of China)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Science Foundation (NSF); U.S. Department of Defense (DOD); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1572464
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Ceramics International
Additional Journal Information:
Journal Volume: 44; Journal Issue: 17; Journal ID: ISSN 0272-8842
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; SrMnO3; doping; electrode; electrospun nanofiber; perovskite; supercapacitor

Citation Formats

George, Gibin, Jackson, Shanell L., Luo, Charles Q., Fang, Dong, Luo, Duan, Hu, Dongli, Wen, Jianguo, and Luo, Zhiping. Effect of doping on the performance of high-crystalline SrMnO3 perovskite nanofibers as a supercapacitor electrode. United States: N. p., 2018. Web. doi:10.1016/j.ceramint.2018.08.313.
George, Gibin, Jackson, Shanell L., Luo, Charles Q., Fang, Dong, Luo, Duan, Hu, Dongli, Wen, Jianguo, & Luo, Zhiping. Effect of doping on the performance of high-crystalline SrMnO3 perovskite nanofibers as a supercapacitor electrode. United States. doi:10.1016/j.ceramint.2018.08.313.
George, Gibin, Jackson, Shanell L., Luo, Charles Q., Fang, Dong, Luo, Duan, Hu, Dongli, Wen, Jianguo, and Luo, Zhiping. Tue . "Effect of doping on the performance of high-crystalline SrMnO3 perovskite nanofibers as a supercapacitor electrode". United States. doi:10.1016/j.ceramint.2018.08.313. https://www.osti.gov/servlets/purl/1572464.
@article{osti_1572464,
title = {Effect of doping on the performance of high-crystalline SrMnO3 perovskite nanofibers as a supercapacitor electrode},
author = {George, Gibin and Jackson, Shanell L. and Luo, Charles Q. and Fang, Dong and Luo, Duan and Hu, Dongli and Wen, Jianguo and Luo, Zhiping},
abstractNote = {Perovskite oxides are promising multi-functional materials with enhanced physical and chemical properties. In this study, high-crystalline SrMnO3 perovskite oxide nanofibers have been successfully synthesized by sol–gel electrospinning followed by calcination at different temperatures, using polyvinylpyrrolidone as a sacrificial polymeric binder. The change in porosity and grain size with calcination temperature imparted a substantial effect on the electrochemical properties of the obtained SrMnO3 nanofibers. The SrMnO3 nanofiber electrode calcined at 700 °C exhibits an electrochemical capacitance of 321.7 F g–1 at a discharge current density of 0.5 A g–1. Here, the effect of doping Ba/Ca on Sr, and Co/Fe/Ni on Mn, respectively, on the specific capacitance of SrMnO3 nanofibers is studied. 20 mol% Ba loading shows the best performance as a supercapacitor electrode with a specific capacitance of 446.8 F g–1 at a discharge current density of 0.5 A g–1. The nanofibers retained 87% its initial capacitance after 5000 successive cycles. The device fabricated using the nanofibers show an energy density of 37.3 W h kg–1 at a power density of 400 W kg–1, and it is retained as 15.7 W h kg–1 even at a high-power density of 8006 W kg–1, indicating the potential of this electrode material for high-rate charge/discharge operations in supercapacitors.},
doi = {10.1016/j.ceramint.2018.08.313},
journal = {Ceramics International},
number = 17,
volume = 44,
place = {United States},
year = {2018},
month = {8}
}

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