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Lead-free AgNbO3 anti-ferroelectric ceramics with an enhanced energy storage performance using MnO2 modification

Journal Article


Abstract


  • Dielectric ceramic materials have been actively studied for advanced pulsed power capacitor applications. Despite the good properties obtained in lead-based ceramics, lead-free counterparts are highly desired due to environmental regulations. This study revealed the potential of AgNbO3 to be a promising lead-free ceramic for energy storage applications. AgNbO3 ceramics fabricated using a conventional solid-state reaction method under an O2 atmosphere show a characteristic anti-ferroelectric (AFE) double hysteresis loop at an electric field of >130 kV cm-1, with a peak recoverable energy storage density (Wrec) of 1.6 J cm-3 at 140 kV cm-1. In addition, the incorporation of MnO2 into AgNbO3 can further increase Wrec, exceeding 2.3 J cm-3 at 150 kV cm-1 by the reduction of the remnant polarization, which is due to the enhanced AFE stability induced by the addition of MnO2. Of particular importance is that the 0.1 wt% MnO2-doped AgNbO3 ceramics were found to possess a good thermal stability with Wrec = 2.5-2.9 J cm-3 over a temperature range of 20-180 °C at 150 kV cm-1 and 1 Hz.

UOW Authors


  •   Zhao, Lei (external author)
  •   Liu, Qing (external author)
  •   Zhang, Shujun
  •   Li, Jing-Feng (external author)

Publication Date


  • 2016

Citation


  • Zhao, L., Liu, Q., Zhang, S. & Li, J. (2016). Lead-free AgNbO3 anti-ferroelectric ceramics with an enhanced energy storage performance using MnO2 modification. Journal of Materials Chemistry C, 4 (36), 8380-8384.

Scopus Eid


  • 2-s2.0-84988490349

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2237

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 8380

End Page


  • 8384

Volume


  • 4

Issue


  • 36

Place Of Publication


  • United Kingdom

Abstract


  • Dielectric ceramic materials have been actively studied for advanced pulsed power capacitor applications. Despite the good properties obtained in lead-based ceramics, lead-free counterparts are highly desired due to environmental regulations. This study revealed the potential of AgNbO3 to be a promising lead-free ceramic for energy storage applications. AgNbO3 ceramics fabricated using a conventional solid-state reaction method under an O2 atmosphere show a characteristic anti-ferroelectric (AFE) double hysteresis loop at an electric field of >130 kV cm-1, with a peak recoverable energy storage density (Wrec) of 1.6 J cm-3 at 140 kV cm-1. In addition, the incorporation of MnO2 into AgNbO3 can further increase Wrec, exceeding 2.3 J cm-3 at 150 kV cm-1 by the reduction of the remnant polarization, which is due to the enhanced AFE stability induced by the addition of MnO2. Of particular importance is that the 0.1 wt% MnO2-doped AgNbO3 ceramics were found to possess a good thermal stability with Wrec = 2.5-2.9 J cm-3 over a temperature range of 20-180 °C at 150 kV cm-1 and 1 Hz.

UOW Authors


  •   Zhao, Lei (external author)
  •   Liu, Qing (external author)
  •   Zhang, Shujun
  •   Li, Jing-Feng (external author)

Publication Date


  • 2016

Citation


  • Zhao, L., Liu, Q., Zhang, S. & Li, J. (2016). Lead-free AgNbO3 anti-ferroelectric ceramics with an enhanced energy storage performance using MnO2 modification. Journal of Materials Chemistry C, 4 (36), 8380-8384.

Scopus Eid


  • 2-s2.0-84988490349

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2237

Has Global Citation Frequency


Number Of Pages


  • 4

Start Page


  • 8380

End Page


  • 8384

Volume


  • 4

Issue


  • 36

Place Of Publication


  • United Kingdom