Enhancing the Output Performance of Green Cellulose-Based Triboelectric Nanogenerator by Doping with Polyvinyl Alcohol

IF 2.2 4区工程技术 Q1 MATERIALS SCIENCE, TEXTILES

Fibers and Polymers Pub Date : 2025-02-01 DOI:10.1007/s12221-025-00855-x

Mengnan Qu, Yuan Deng, Hui Liu, Yuqing Wang, Cai-Li Sun, Jinmei He

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Abstract

Triboelectric nanogenerator (TENG) is a promising energy harvesting device for harvesting renewable mechanical energy. Some materials used in triboelectric nanogenerator inevitably pollute the environment, so the development of green triboelectric materials has attracted widespread attention. Herein, we chose a non-toxic sodium carboxymethyl cellulose (CMC), which has poor tribopositive properties due to the carboxymethyl group contained in it. Thus, the tribopositive polarity of CMC is enhanced by doping hydroxy-rich polyvinyl alcohol (PVA) with strong electron-donating ability. Rough and porous CMC/PVA polymer blend films with strong tribopositive polarity and environmental friendliness were prepared by a simple physical blending strategy. The open-circuit voltage (V_OC) and short-circuit current (I_SC) were optimized to be 380 V and 49 µA, respectively, for a CMC/PVA mass ratio of 10:3, and the maximum power density of CMC/PVA-TENG was 1.32 mW/cm². This study provides a feasible approach for enhancing the tribopositive properties of materials by doping modification and the development of green triboelectric nanogenerators.

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聚乙烯醇掺杂提高绿色纤维素基摩擦电纳米发电机输出性能

三电纳米发电机（TENG）是一种前景广阔的能量收集装置，用于收集可再生机械能。用于三电纳米发电机的一些材料不可避免地会对环境造成污染，因此绿色三电材料的开发受到了广泛关注。在这里，我们选择了一种无毒的羧甲基纤维素钠（CMC），由于其中含有羧甲基基团，其摩擦正性较差。因此，通过掺杂富含羟基的聚乙烯醇（PVA）来增强 CMC 的摩擦正极性，PVA 具有很强的电子负载能力。通过简单的物理混合策略，制备出了具有强摩擦正极性和环境友好性的粗糙多孔 CMC/PVA 聚合物共混膜。在 CMC/PVA 质量比为 10:3 时，开路电压（VOC）和短路电流（ISC）分别优化为 380 V 和 49 µA，CMC/PVA-TENG 的最大功率密度为 1.32 mW/cm2。这项研究为通过掺杂改性增强材料的摩擦正向特性和开发绿色三电纳米发电机提供了一种可行的方法。

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来源期刊

Fibers and Polymers 工程技术-材料科学：纺织

CiteScore

3.90

自引率

8.00%

发文量

267

审稿时长

3.9 months

期刊介绍： -Chemistry of Fiber Materials, Polymer Reactions and Synthesis- Physical Properties of Fibers, Polymer Blends and Composites- Fiber Spinning and Textile Processing, Polymer Physics, Morphology- Colorants and Dyeing, Polymer Analysis and Characterization- Chemical Aftertreatment of Textiles, Polymer Processing and Rheology- Textile and Apparel Science, Functional Polymers