当前位置：
X-MOL 学术
›
New J. Chem.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Enhanced energy storage properties of KNbO3 modified (Bi0.5Na0.5)TiO3–BaTiO3 based lead-free relaxor ferroelectric ceramics
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2022-10-11 , DOI: 10.1039/d2nj04126j
Fan Yang 1 , Qiang Li 1 , Dingwei Hou 1 , Yuxin Jia 1 , Weijia Wang 1 , Huiqing Fan 1
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2022-10-11 , DOI: 10.1039/d2nj04126j
Fan Yang 1 , Qiang Li 1 , Dingwei Hou 1 , Yuxin Jia 1 , Weijia Wang 1 , Huiqing Fan 1
Affiliation
|
Dielectric capacitors are widely used in pulse devices because of their fast charge/discharge speed. However, the low energy storage density limits their application. In this work, (1 − x)(Bi0.5Na0.5)0.94Ba0.06Ti0.99(Y0.5Nb0.5)0.01O3-xKNbO3 (BNBTYN-100xKN) lead-free relaxor ferroelectric ceramics were fabricated via a solid-state sintering technique. K+ and Nb5+ were completely diffused into the BNBTYN lattice and formed solid solutions. The incorporation of KNbO3 reduced the symmetry of BNBTYN-100xKN ceramics and destroyed the long-range ordered ferroelectric domains, leading to thinning of hysteresis loops. The relaxor degree increased with the KN content, resulting in the improvement of efficiency. Therefore, using BNBTYN-5KN ceramics an energy storage density of 1.246 J cm−3 and an efficiency of 78.7% at 104 kV cm−1 were obtained. In addition, the BNBTYN-5KN ceramics exhibited this energy storage density with outstanding temperature stability (in the range of 20–120 °C) and excellent fatigue resistance. These results reveal that BNBTYN-5KN ceramics is a promising material for energy storage.
中文翻译：
KNbO3改性(Bi0.5Na0.5)TiO3-BaTiO3基无铅弛豫铁电陶瓷的储能性能增强
介电电容因其充放电速度快而广泛用于脉冲器件中。然而，低能量存储密度限制了它们的应用。在这项工作中，(1 - x )(Bi 0.5 Na 0.5 ) 0.94 Ba 0.06 Ti 0.99 (Y 0.5 Nb 0.5 ) 0.01 O 3 - x KNbO 3 (BNBTYN-100 x KN)无铅弛豫铁电陶瓷通过固态烧结技术。K +和 Nb 5+完全扩散到 BNBTYN 晶格中并形成固溶体。KNbO 3的加入降低了 BNBTYN-100 x KN 陶瓷的对称性并破坏了长程有序铁电畴，导致磁滞回线变薄。弛豫度随着KN含量的增加而增加，从而提高效率。因此，使用 BNBTYN-5KN 陶瓷的储能密度为 1.246 J cm -3 ，在 104 kV cm -1下的效率为 78.7%获得。此外，BNBTYN-5KN 陶瓷表现出这种能量存储密度，具有出色的温度稳定性（在 20-120 °C 范围内）和出色的抗疲劳性。这些结果表明，BNBTYN-5KN陶瓷是一种很有前途的储能材料。
更新日期：2022-10-11
中文翻译：
KNbO3改性(Bi0.5Na0.5)TiO3-BaTiO3基无铅弛豫铁电陶瓷的储能性能增强
介电电容因其充放电速度快而广泛用于脉冲器件中。然而，低能量存储密度限制了它们的应用。在这项工作中，(1 - x )(Bi 0.5 Na 0.5 ) 0.94 Ba 0.06 Ti 0.99 (Y 0.5 Nb 0.5 ) 0.01 O 3 - x KNbO 3 (BNBTYN-100 x KN)无铅弛豫铁电陶瓷通过固态烧结技术。K +和 Nb 5+完全扩散到 BNBTYN 晶格中并形成固溶体。KNbO 3的加入降低了 BNBTYN-100 x KN 陶瓷的对称性并破坏了长程有序铁电畴，导致磁滞回线变薄。弛豫度随着KN含量的增加而增加，从而提高效率。因此，使用 BNBTYN-5KN 陶瓷的储能密度为 1.246 J cm -3 ，在 104 kV cm -1下的效率为 78.7%获得。此外，BNBTYN-5KN 陶瓷表现出这种能量存储密度，具有出色的温度稳定性（在 20-120 °C 范围内）和出色的抗疲劳性。这些结果表明，BNBTYN-5KN陶瓷是一种很有前途的储能材料。
京公网安备 11010802027423号