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基于PVDF纳米纤维的高性能三电纳米发电机,由电荷控制剂n-propyl gallate修饰

Chao Li¹, Xueying Yang¹, Xin Tang¹

¹Department of Physics, School of Physical and Mathematical Sciences, Nanjing Tech University, Nanjing 211816, China.

Materials (Basel, Switzerland)

|July 12, 2025

概括

这项研究引入了使用聚乙烯化物 (PVDF) 和n-propyl gallate (PG) 的改进的 triboelectric纳米发电机 (TENG). 新型复合膜显著提高了从机械来源收集的电能,而不会改变PVDF.

科学领域:

材料科学材料科学材料科学
收集能源收集能源
纳米技术纳米技术

背景情况:

三电纳米发电机 (TENGs) 对将环境机械能转化为电能充满希望.
聚乙烯化物 (PVDF) 是TENG的常见材料,但其性能可以进一步提高.
优化TENG材料对于开发高效的自动供电系统至关重要.

研究的目的:

调查n-propyl gallate (PG) 对基于PVDF的TENGs性能的影响.
探索PVDF/PG复合纳米纤维薄膜在增强能源采集方面的潜力.
展示开发的TENGs的实际应用.

主要方法:

使用电制造PVDF纳米纤维薄膜,使用不同度的n-propyl gallate (PG) 来制造.
对PVDF/PG复合薄膜的表征,包括对PVDFβ相的分析.
基于准备好的薄膜构建和测试TENG设备,以测量输出电压,电流和传输电荷.
对功率密度的评估和对电源电子设备的演示.

主要成果:

添加0.5-2.5 wt%的PG并没有改变PVDF的β阶段.
与原始的PVDF-TENG相比,使用1%重量PG (PG1-TENG) 的TENG装置显示出输出电压有~60%的改善.
PG1-TENG实现了显著的输出值:334 V,4.36 μA,78.4 nC,功率密度为5.27 W/m2.
鉴于PG的独特的电荷调节能力,这被认为是提高性能而无需相位变化的原因.

结论:

PVDF/PG复合纳米纤维薄膜有效提高TENG性能.
PG充当电荷调节器,提高能量转换效率,而不影响PVDF晶体结构.
开发的PG1-TENG显示了为电源小型电子设备,如计算器和LED的实际潜力.

关键词:

这是一个PVDF.能源采集能源采集 n-烯基酸盐的使用情况纳米纤维是一种纳米纤维.β阶段 β阶段

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