当地结构性扰乱导致BiFeO3基陶中的高能量密度3
Sen Chen1, Wei Zhang1, Jiarong Lv1
1School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
ACS applied materials & interfaces
|December 17, 2025
概括
研究人员通过引入 (Bi2 / 9La2 / 9Sm2 / 9) ZrO3 (BLSZ) 来增强无芝麻铁酸盐 (BiFeO3) 基陶用于储能. 这种修改显著提高了能量密度和分解强度,同时减少了能量损失.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 储能 储能 储能 储能 储能 储能
背景情况:
- 无BiFeO3基陶提供高基里温度和自发极化,用于储能.
- 诸如低分解强度和高hysteresis损失等内在的局限性阻碍了它们的应用.
- 开发高性能介电材料对于先进的储能解决方案至关重要.
研究的目的:
- 为了提高基于BiFeO3的陶的储能性能.
- 为了克服低分解强度和大量hysteresis损失的局限性.
- 使用 (Bi2/9La2/9Sm2/9) ZrO3 (BLSZ) 添加来探索局部结构扰乱的影响.
主要方法:
- 在基于BiFeO3的陶中引入 (Bi2/9La2/9Sm2/9) ZrO3 (BLSZ).
- 调查局部结构干扰及其对材料性能的影响.
- 描述储能性能,包括能量密度和分解强度.
主要成果:
- 添加BLSZ有效地抑制了hysteresis损失,并延迟了极化和.
- 由于无序的原子排列和谷物精炼,分解强度得到增强.
- 优化的基于BiFeO3的陶实现了7.4 J cm-3.的高能量密度.
结论:
- 通过BLSZ增加的局部结构干扰显著改善了基于BiFeO3的陶能量储存.
- 这一策略为克服基于BiFeO3的介电材料的内在局限性提供了一条途径.
- 这些发现为开发用于储能的高性能介电材料提供了设计指南.
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