Effect of Na<sup>2+</sup> and Bi<sup>3+</sup> substitution in lead-free BZT-Pr multifunctional ceramics for energy storage and thermal energy conversion

For this study, Ba<sub>1-<i>y</i>-<i>x</i></sub> Pr<sub>2<i>y</i>/3</sub>□ <sub><i>y</i>/3</sub>(Na<sub>0.5</sub>Bi<sub>0.5</sub>) <sub><i>x</i></sub> Ti<sub>0.9</sub>Zr<sub>0.1</sub>O<sub>3</sub> (<i>y</i> = 0.5%; <i>x</i> = 0.05, 0.1 and 0.15) (abbreviated as BZT-Pr-<i>x</i>NBT) ceramics were prepared by a solid state reaction method. The samples were structurally characterized by X-ray diffraction (XRD) and the software Fullprof, which showed the atomic positions, bond distances, and bond angles of these materials in the tetragonal structure. The crystallite size, determined by both the Williamson-Hall and Debye-Scherrer methods, increases with increasing Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub> (abbreviated as NBT) content in Ba<sub>1-<i>y</i></sub> Pr<sub>2<i>y</i>/3</sub>□ <sub><i>y</i>/3</sub>Ti<sub>0.9</sub>Zr<sub>0.1</sub>O<sub>3</sub> (<i>y</i> = 0.5%) (abbreviated as BZT-Pr) ceramic. The ultraviolet-visible (UV-Vis) diffuse reflectance spectrum indicated that the BZT-Pr-<i>x</i>NBT ceramics exhibited direct band gap values in the range of 2.90-2.78 eV. Moreover, this study investigates the ferroelectric, energy storage, and pyroelectric energy harvesting properties of BZT-Pr-<i>x</i>NBT ceramics with varying NBT contents (<i>x</i> = 0.05, 0.10 and 0.15). The results reveal that NBT substitution significantly influences the ferroelectric characteristics and enhances recoverable energy storage density (<i>W</i> <sub>rec</sub>) and energy storage efficiency (<i>η</i>). Temperature-dependent scaling relations for the coercive field (<i>E</i> <sub>C</sub>) and remnant polarization (<i>P</i> <sub>r</sub>) were derived for all samples. For BZT-Pr-0.15NBT ceramic, the scaling relation for <i>E</i> <sub>C</sub> and <i>P</i> <sub>r</sub> (<i>E</i> <sub>C</sub> ∝ <i>T</i> <sup>-0.089</sup>, <i>P</i> <sub>r</sub> ∝ <i>T</i> <sup>-0.233</sup>) highlights improved thermal stability in this composition. Pyroelectric energy harvesting under the Olsen cycle identified BZT-Pr-0.05NBT as the most efficient composition. These findings emphasize the crucial impact of NBT substitution in optimizing the ferroelectric and pyroelectric properties of BZT-Pr-<i>x</i>NBT ceramics.

Authors

Institutions

Publication Details

Journal
RSC Advances
Published
2025-01-01
DOI
https://doi.org/10.1039/d5ra00245a
Primary Topic
Magnetic and transport properties of perovskites and related materials
Type
article
Field-Weighted Citation Impact
0.00

Funders

Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

Effect of Na2+ and Bi3+ substitution in lead-free BZT-Pr multifunctional ceramics for energy storage and thermal energy conversion

N. Abdelmoula, I. Zouari, Z. Sassi, L. Seveyrat et al.
RSC Advances
Magnetic and transport properties of perovskites and related materials
article

Effect of Na2+ and Bi3+ substitution in lead-free BZT-Pr multifunctional ceramics for energy storage and thermal energy conversion

N. Abdelmoula, I. Zouari, Z. Sassi, L. Seveyrat, H. Khemakhem, Asma Dahri
article en

Abstract

For this study, Ba<sub>1-<i>y</i>-<i>x</i></sub> Pr<sub>2<i>y</i>/3</sub>□ <sub><i>y</i>/3</sub>(Na<sub>0.5</sub>Bi<sub>0.5</sub>) <sub><i>x</i></sub> Ti<sub>0.9</sub>Zr<sub>0.1</sub>O<sub>3</sub> (<i>y</i> = 0.5%; <i>x</i> = 0.05, 0.1 and 0.15) (abbreviated as BZT-Pr-<i>x</i>NBT) ceramics were prepared by a solid state reaction method. The samples were structurally characterized by X-ray diffraction (XRD) and the software Fullprof, which showed the atomic positions, bond distances, and bond angles of these materials in the tetragonal structure. The crystallite size, determined by both the Williamson-Hall and Debye-Scherrer methods, increases with increasing Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub> (abbreviated as NBT) content in Ba<sub>1-<i>y</i></sub> Pr<sub>2<i>y</i>/3</sub>□ <sub><i>y</i>/3</sub>Ti<sub>0.9</sub>Zr<sub>0.1</sub>O<sub>3</sub> (<i>y</i> = 0.5%) (abbreviated as BZT-Pr) ceramic. The ultraviolet-visible (UV-Vis) diffuse reflectance spectrum indicated that the BZT-Pr-<i>x</i>NBT ceramics exhibited direct band gap values in the range of 2.90-2.78 eV. Moreover, this study investigates the ferroelectric, energy storage, and pyroelectric energy harvesting properties of BZT-Pr-<i>x</i>NBT ceramics with varying NBT contents (<i>x</i> = 0.05, 0.10 and 0.15). The results reveal that NBT substitution significantly influences the ferroelectric characteristics and enhances recoverable energy storage density (<i>W</i> <sub>rec</sub>) and energy storage efficiency (<i>η</i>). Temperature-dependent scaling relations for the coercive field (<i>E</i> <sub>C</sub>) and remnant polarization (<i>P</i> <sub>r</sub>) were derived for all samples. For BZT-Pr-0.15NBT ceramic, the scaling relation for <i>E</i> <sub>C</sub> and <i>P</i> <sub>r</sub> (<i>E</i> <sub>C</sub> ∝ <i>T</i> <sup>-0.089</sup>, <i>P</i> <sub>r</sub> ∝ <i>T</i> <sup>-0.233</sup>) highlights improved thermal stability in this composition. Pyroelectric energy harvesting under the Olsen cycle identified BZT-Pr-0.05NBT as the most efficient composition. These findings emphasize the crucial impact of NBT substitution in optimizing the ferroelectric and pyroelectric properties of BZT-Pr-<i>x</i>NBT ceramics.

RSC AdvancesVol. 15(12)
Université Claude Bernard Lyon 1 (FR), University of Sfax (TN), Research and Technology Center of Energy (TN), Institut National des Sciences Appliquées de Lyon (FR)
Ministère de l’Enseignement Supérieur et de la Recherche Scientifique
Affordable and clean energy
Openalex Percentile: Top 97%
Magnetic and transport properties of perovskites and related materials
DOIOpen Access PDFOpenAlex
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.