Enhanced electrocaloric, pyroelectric and energy storage performance of BaCe Ti1−O3 ceramics

Srikanth, K. S.; Vaish, Rahul

doi:10.1016/j.jeurceramsoc.2017.04.058

Cited by 88 publications

(27 citation statements)

References 48 publications

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“…Figure 3b shows energy-storage performance of some lead-based and lead-free ferroelectrics and antiferroelectrics [17,19,20,21,22,23,24,25,26]. Considering the electric field used in this work, the energy-storage density of the 0.25 mol% Y 2 O 3 -doped PSLZSnT ceramics is far larger than these materials, and the energy-storage efficiency exceeds most of these materials.…”

Section: Resultsmentioning

confidence: 99%

Analogous Anti-Ferroelectricity in Y2O3-Coated (Pb0.92Sr0.05La0.02)(Zr0.7Sn0.25Ti0.05)O3 Ceramics and Their Energy-Storage Performance

et al. 2019

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Antiferroelectric analogous (Pb0.92Sr0.05La0.02)(Zr0.7Sn0.25Ti0.05)O3 (PSLZSnT) ceramics were prepared by the solid-state sintering method by introducing a Y2O3-coating via the self-combustion method. The synthesized Y2O3-doped PSLZSnT ceramics present pseudo-cubic structure and rather uniform microstructural morphology accompanied by relatively small grain size. Excellent energy-storage performance is obtained in the Y2O3-doped PSLZSnT ceramics, in which the value of the energy-storage density presents a linearly increasing trend within the electric field measurement range. Such excellent performance is considered as relating to the rather pure perovskite structure, high relative density accompanied by relatively small grain size, and the antiferroelectric-like polarization-electric field behavior.

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Section: Resultsmentioning

confidence: 99%

Analogous Anti-Ferroelectricity in Y2O3-Coated (Pb0.92Sr0.05La0.02)(Zr0.7Sn0.25Ti0.05)O3 Ceramics and Their Energy-Storage Performance

et al. 2019

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“…Bulk densities for KNN-xLS; x = 0.015, 0.03, 0.045, 0.06 are 4.22, 4.38, 4.40, 4.39 g/cm 3 respectively. The specific heat capacity has calculated to be 0.55 J/g.K at 345 K for KNN-0.03LS using differential scanning calorimeter (DSC) measurements and was used for other composition 23 , 36 . The maximum Δ S and Δ T are found to be 8.03 J/kg.K and 3.33 K at 345 K for 40 kV/cm using eqs 1 and 2 for KNN-0.03LS.…”

Section: Resultsmentioning

confidence: 99%

“…However, the giant ECE have been observed for lead-based material which is again hazardous and carcinogenic. In order to overcome this problem lead-free material like (Na 0.5 Ba 0.5 )TiO 3 18 , 19 , BaTiO 3 20 – 23 , (K 0.5 Na 0.5 )NbO 3 9 , 13 , 24 , Ba 0.65 Sr 0.35 TiO 3 25 , 26 ferroelectric-based compounds are the better candidates. There had been a various report on the mentioned materials, but achieved EC temperature change (Δ T ) is very less.…”

Section: Introductionmentioning

confidence: 99%

Giant electrocaloric and energy storage performance of [(K0.5Na0.5)NbO3](1−x)-[LiSbO3] x nanocrystalline ceramics

Kumar

Singh

2018

Sci Rep

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Electrocaloric (EC) refrigeration, an EC effect based technology has been accepted as an auspicious way in the development of next generation refrigeration due to high efficiency and compact size. Here, we report the results of our experimental investigations on electrocaloric response and electrical energy storage properties in lead-free nanocrystalline (1 − x)K0.5Na0.5NbO3-xLiSbO3 (KNN-xLS) ceramics in the range of 0.015 ≤ x ≤ 0.06 by the indirect EC measurements. Doping of LiSbO3 has lowered both the transitions (TC and TO–T) of KNN to the room temperature side effectively. A maximal value of EC temperature change, ΔT = 3.33 K was obtained for the composition with x = 0.03 at 345 K under an external electric field of 40 kV/cm. The higher value of EC responsivity, ζ = 8.32 × 10−7 K.m/V is found with COP of 8.14 and recoverable energy storage of 0.128 J/cm3 with 46% efficiency for the composition of x = 0.03. Our investigations show that this material is a very promising candidate for electrocaloric refrigeration and energy storage near room temperature.

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“…Some materials in this family are PbZr x Ti 1− x O 3 (PZT), Sr 0.5 Ba 0.5 Nb 2 O 6 , Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 , LiNbO 3 ,LiTaO 3 , and triglycine sulfate (TGS). The performance of these materials largely depends upon their dielectric constant, specific heat, and pyroelectric coefficient, as directed by pyroelectric energy harvesting figure of merit values . To improve energy harvesting performance, various materials engineering based physical and chemical methods have been explored.…”

Section: Introductionmentioning

confidence: 99%

Large Gain in Pyroelectric Energy Conversion through a Candle Soot Coating

et al. 2018

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A large gain in pyroelectric voltage and current when exposed to infrared radiation after candle soot coating on material surfaces is reported. A piezoelectric buzzer is selected to quantify the effect of candle soot on pyroelectric output. For a given temperature change, the peak value of the open‐circuit voltage is enhanced from 2 V to 8 V and electric current is boosted from 15 nA to 95 nA. A load capacitor is also connected through a full wave rectifier. Energy storage in a 10 μF load capacitor is increased from 5 nJ to 70 nJ.

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Enhanced electrocaloric, pyroelectric and energy storage performance of BaCe Ti1−O3 ceramics

Cited by 88 publications

References 48 publications

Analogous Anti-Ferroelectricity in Y2O3-Coated (Pb0.92Sr0.05La0.02)(Zr0.7Sn0.25Ti0.05)O3 Ceramics and Their Energy-Storage Performance

Analogous Anti-Ferroelectricity in Y2O3-Coated (Pb0.92Sr0.05La0.02)(Zr0.7Sn0.25Ti0.05)O3 Ceramics and Their Energy-Storage Performance

Giant electrocaloric and energy storage performance of [(K0.5Na0.5)NbO3](1−x)-[LiSbO3] x nanocrystalline ceramics

Large Gain in Pyroelectric Energy Conversion through a Candle Soot Coating

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