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This work offers a good paradigm for improving the energy storage properties of antiferroelectric multilayer capacitors to meet the demanding requirements of advanced energy storage applications. AgNbO3 has a potential for high power capacitors due to its antiferroelectric characteristics.
The phase structure of AgNbO 3 experiences consecutive complex alterations within a certain temperature span. At room temperature, it is often labeled as M1 phase, orthorhombic symmetry, and considered as a mixed phase consisting of the polar space group Pmc 2 1 and the non-polar space group Pbcm.
J. Gao, Y.C. Zhang, L. Zhao, K.Y. Lee, Q. Liu, A. Studer, M. Hinterstein, S.J. Zhang, J.F. Li, Enhanced antiferroelectric phase stability in La-doped AgNbO 3: perspectives from the microstructure to energy storage properties. J. Mater.
As a representative AFE system, the AgNbO 3 (AN) shows great potential for energy storage due to its large polarization up to 52 μC cm −2 and has been at the focal plane of the research since the first discovery of its AFE characteristics 23.
D.S. Fu, M. Endo, H. Taniguchi, T. Taniyama, M. Itoh, AgNbO 3: A lead-free material with large polarization and electromechanical response. Appl. Phys.
There is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled, “Enhanced energy storage performance in AgNbO 3 antiferroelectric ceramics via Eu 3+ substitution”.
AgNbO3 (AN) lead-free antiferroelectric material has attracted great attention in recent years. However, little focus has been directed toward a single crystal that can provide more basic information.
Polarization measurements reveal that AgNbO3 has an extremely large polarization, which can reach a value of 52μC∕cm2 in polycrystals. Experiments also show that the large internal atom distortion in AgNbO3 is also strongly coupled to the electric field, indicating that high piezoelectric performance can be realized in AgNbO3 system. This finding opens the …
De soorten energieopslag kunnen grof worden verdeeld onder elektriciteitsopslag (elektrisch, elektrochemisch en mechanisch), moleculenopslag en warmteopslag. Bij het opslaan van energie is het belangrijk dat er op grote schaal wordt gewerkt en dat er zo min mogelijk energie in het proces verloren gaat. Zo zorgt de opslag van elektriciteit in ...
Aliovalent A-site engineered AgNbO3 lead-free antiferroelectric ceramics toward superior energy storage density
The XRD patterns of the pure AN and GANT100x ceramics at RT are presented in Fig. 2 (a). The samples exhibit a standard single-phase perovskite structure. In the partially magnified diffraction curves, a slight rightward shift of the (110) and (001) peaks can be observed with the increase in the Gd content, which confirms the successful diffusion of Gd 3+ into the …
Lead-free silver niobate (AgNbO3) and sodium niobate (NaNbO3) antiferroelectric ceramics have attracted intensive interest as promising candidates for …
Nature Communications - AgNbO3 has a potential for high power capacitors due to its antiferroelectric characteristics. Here, the authors achieve multilayer capacitors with …
For the AgNbO3–BaTiO3 solid solution we find two morphotropic phase boundaries at 12.5% and 37.5% AgNbO3 compositions with favorable piezoeletric properties and indications of high TC. View Show ...
The primary AFE materials for energy storage applications have been the La-doped Pb-based ceramics [7, [9], [10], [11]], in which a W rec up to 12.8 J/cm 3 has been obtained [11].However, the high toxicity of Pb-containing compounds continuously raises severe problems [12].Thus, the intensive researches have been performed on lead-free counterparts [13, 14].
AgNbO3-based antiferroelectric films have attracted emerging attention in the field of dielectric energy storage and possess promising applications in photocatalysis and microwave devices.
AgNbO3-based Pb-free antiferroelectric (AFE) ceramics have attracted increasing interest owing to their excellent potential in energy storage applications. Herein, a high recoverable energy ...
AgNbO3 (AN) lead-free antiferroelectric material has attracted great attention in recent years. However, little focus has been directed toward a single crystal that can provide more basic information. In this study, we successfully grew high-quality AN single crystals, using a flux method, with dimensions of 5 × 5 × 3 mm3. A systematic investigation into the crystal structure, …
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 ...
Dielectric capacitors have attracted extensive attention due to their high power density along with fast charge/discharge rate. Despite the high energy storage performance were obtained in lead-based ceramics, we still need to find lead-free ceramic alternatives considering the environmental requirements, and AgNbO3 has received extensive attention owing to its …
Dielectric ceramics are crucial materials in the preparation of high energy storage capacitors, where antiferroelectric ceramics have promising potential due to their large maximum polarization and low remnant polarization. However, their low energy storage density limits their wide application. In this work, core–shell structured ceramics were designed by …
Met energieopslag kunnen we deze fluctuaties opvangen: de opslag vormt een buffer tussen vraag en aanbod en borgt de betrouwbaarheid van het systeem. Ook slaan we energie op als ''strategische reserve'', zodat we ook energie …
The external pressure is one of the essential parameters for regulating the structure and energy conversion properties of antiferroelectric AgNbO 3.For pure AgNbO 3, however, there has been still a blank of its real lattice structure under the stress field.Here, high-pressure lattice structures and phase transitions of AgNbO 3 have been explored by …
Grootschalige energieopslag boven- en ondergronds. Al het onderzoek is erop gericht om binnen tien jaar technologieën toepasbaar te hebben om energie en energiedragers grootschalig op te slaan. Het gaat om ondergrondse opslag van vooral waterstof en hoge temperatuur warmte in zoutcavernes, lege gasvelden en waterhoudende lagen. ...
The degradation efficiency of Ag2O/AgNbO3 (2:1) can reach the 95.4% within 90 min. Comparing with pure AgNbO3 (12.2%), the prepared Ag2O/AgNbO3 heterostructure composite enhances photocatalyst ...
Ultrahigh energy density and excellent discharge properties in Ce4+ and Ta5+ co-modified AgNbO3 relaxor antiferroelectric ceramics via multiple design strategies
De opslag van energie wordt steeds belangrijker naarmate we meer duurzame energie gebruiken in Nederland. Niet alleen de opslag van elektriciteit, maar ook van moleculen (bijvoorbeeld gas en waterstof) en warmte. Deze drie energievormen zullen nodig zijn om te zorgen dat er voldoende flexibiliteit is in een energiesysteem met meer variabele …
AgNbO3 has a potential for high power capacitors due to its antiferroelectric characteristics. Here, the authors achieve multilayer capacitors with energy-storage density of 14 J·cm−3 by ...
AgNbO3 lead-free antiferroelectric (AFE) material is one of the most promising candidates for fabricating dielectric capacitors due to its near-zero remnant polarization and good environmental friendliness. However, current …
Crystal structure of ferroelectric silver niobate AgNbO3 was determined (Pmc21) by convergent beam electron, electron, neutron, and synchrotron diffraction techniques and first-principles calculations. The atomic displacements along the c axis in Pmc21 AgNbO3 are responsible for the spontaneous polarization, ferroelectricity, and the paraelectric−ferroelectric …
<p>Antiferroelectric materials with double hysteresis loops are attractive for energy storage applications, which are becoming increasingly important for power electronics nowadays. …
AgNbO3 ceramics have attracted progressively more attention to high power energy storage in dielectric capacitors because of complicated in a series of phase transitions. In this work, Ag1 ...
Here, AgNbO3 epitaxial films were fabricated by pulsed laser deposition, which possess high Eb of 624kV/cm. The (001)AgNbO3 epitaxial film reveals typical antiferroelectric hysteresis loops when ...
The polarized AgNbO3 synthesized at 170 ℃ exhibited outstanding piezo‐photocatalytic performance, and a degradation rate of 95% for RhB within 90 min and a high apparent rate constant of 0. ...
Considering AgNbO3 tends to generate oxygen vacancies during fabrication—a phenomenon known to significantly influence its electrical properties—annealing in a flowing oxygen atmosphere is deemed crucial. Notably, the AgNbO3 thick film annealed at a temperature of 800 °C for 6 h exhibited ferroelectric-like behavior and enhanced dielectric ...
