Tuning the microstructure of BaTiO3@FeO core-shell nanoparticles with low temperatures sintering dense nanocrystalline ceramics for high energy storage capability and stability

Enhanced Energy Storage Performance of MnO2-Modified 0.92BaTiO3–0.08Bi(Mg0.5Ce0.5)O3 Ceramics for Capacitor Applications

“…The overlapping of all curves at high frequency at all temperatures may be ascribed to the possible release of space charges. With increasing temperature, the decrease in Z ′ suggests the behavior of semiconductors …”

“…With increasing temperature, the decrease in Z′ suggests the behavior of semiconductors. 19 The Z″ as a function of frequency for BTBMC-x wt % Mn ceramics at temperatures of 500−600 °C is displayed in Figure 6d−f. At lower temperatures, the low Z″ values exhibit the small relaxation behavior, evidence of immobile defects.…”

“…18 Similarly, 0.85BaTiO 3 −0.15CaSnO 3 ceramic also reported a W rec of 1.57 J cm −3 at 230 kV cm −1 . 19 22 In a previous study, the ferroelectric and dielectric behavior of Ce-doped BaTiO 3 ceramics received much attention due to their fundamental and application interests. 23,24 Li et al investigated the doping effect of Mn on dielectric breakdown strength and the decrease of the dielectric loss of BT-BMO ceramics.…”

“…Li et al reported a high recoverable energy density of ∼1.33 J cm –3 at 180 kV cm –1 for 0.9BT–0.1BNIZ ceramics . Similarly, 0.85BaTiO 3 –0.15CaSnO 3 ceramic also reported a W rec of 1.57 J cm –3 at 230 kV cm –1 . Xuewei et al investigated the ceramic 0.88BaTiO 3 –0.12Bi­(Mg 0.5 Sn 0.5 )­O 3 having a W rec of 1.31 J cm –3 at BDS (200 kV cm –1 ) .…”

Multi-scale synergic optimization strategy for dielectric energy storage ceramics

“…Based on this, Bi 3+ and Sc 3+ are introduced, and E b is further increased to 322 kV/cm, while P max is increased to 45 μC/cm 2 [27]. Wang et al [151] prepared BaTiO 3 @3% FeO (BT@FeO) ceramics with grain sizes of ~70 nm by coating the FeO layer on the surface of BT particles via the sol-gel method. The energy density and energy efficiency are 1.5 J/cm 3 and 88%, respectively, which are 500% and 175% higher compared to those of the uncoated one, respectively.…”