摩擦电效应
纳米纤维
双金属片
材料科学
纤维素
纳米技术
化学工程
复合材料
工程类
冶金
金属
作者
Tingting Wang,Qiuxiao Zhu,Qi Zhu,Qifeng Yang,Shuangfei Wang,Lianxin Luo
出处
期刊:Nanoscale advances
[The Royal Society of Chemistry]
日期:2022-01-01
卷期号:4 (20): 4314-4320
被引量:11
摘要
Triboelectric nanogenerators (TENGs) have garnered considerable attention as an emerging energy harvesting technology. To improve the electrical properties of the triboelectric materials in TENGs, various micro- and nanomaterials with strong charge-trapping capabilities are introduced as filler materials. However, the fillers generally perform a single function and lack long-term operational durability. Hence, further research is required to achieve stable and efficient TENGs. In this study, NH2 metal-organic frameworks (NH2-MOFs) were combined with a cellulose nanofiber (CNF) to prepare a composite film. NH2-MOFs have an aminated bimetallic organic backbone with strong charge-induction and charge-trapping capabilities. Thus, their addition significantly improved the stability, positive triboelectric properties and charge-trapping performance of the composite film. The optimized composite film and a fluorinated ethylene propylene film were used as triboelectric pairs to assemble a TENG. The electrical performance of the TENG was approximately 230% greater than that of a TENG with a pure CNF film and remained very stable for at least 90 days. These results demonstrate that NH2-MOFs are promising fillers for improving the performance of TENGs and expanding the range of materials used in TENG construction.
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