结构阶段过渡相关的铁电和压电能源采集在0D酸混合物中通过Cation的终端组延长
Cai-Hong Shi1, Si-Yu Deng1, Jun-Yi Li1
1School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, P. R. China.
Small methods
|May 24, 2025
概括
新的酸混合物显示出铁电性质. 复合物5表现出可逆相变,使灵活的设备能够有效地收集压电能.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 晶体学 晶体学是指结晶学.
背景情况:
- 甲酸盐杂交物是有趣的,因为它们的独特结构.
- 基于分子的铁电材料是必要的,因为与现有的混合动力技术存在挑战.
研究的目的:
- 合成新的零维 (0D) A2BX4型酸酸盐混合物.
- 研究铁电性质和压电能收获的潜力.
- 了解铁电相变的结构基础.
主要方法:
- 合成了五种酸杂交化合物: (C7H13NR) 2ZnCl4 (R = H,甲基,乙基,n-propyl,n-butyl).
- 单晶结构分析用于确定相位过渡期间的结构变化.
- 铁电性质的表征,包括库里温度和强迫场.
- 使用合成材料制造和测试灵活的压电纳米发电机.
主要成果:
- 只有化合物5 (C7H13N-n-butyl) 2ZnCl4,表现出可逆的铁电相变 (P41P43212).
- 化合物5表现出极好的铁电性,其基里温度为330K,低强迫场为0.95kV cm-1.
- 使用15%重量%的化合物5制造的柔性压电纳米发电机实现了74V的开放电路峰值电压和0.40mWcm-2的功率密度.
- 这些设备在5000个循环中保持了稳定的性能.
结论:
- 阴离子的终端组的静态变化至动态变化对于驱动铁电相位过渡至关重要.
- 0D酸混合物为设计低维铁电材料提供了一个有前途的途径.
- 这些材料适用于高功率输出应用,特别是在压电式能量收集中.
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