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<p>Rice is a major staple crop worldwide, and the management of its abundant straw is crucial. In this work, methyl cellulose (MC) as a film-forming agent and rice straw (RS) are used to prepare composite film (MRS) for constructing a high-output flexible triboelectric nanogenerator (MRS-TENG). The MRS-TENG achieves an open-circuit voltage (V<sub>OC</sub>) of 272&#xa0;V, representing a 2.06 times higher voltage than that of RS-TENG. The MRS-TENG successfully monitored human motion and powered 117 LEDs as a self-powered source. The MRS film shows eco-friendly characteristics, releasing primarily CO<sub>2</sub> and H<sub>2</sub>O during combustion without harmful emissions. The variable temperature infrared spectroscopy showed that the MRS structure was stable from − 30 to 150&#xa0;°C. The V<sub>OC</sub> of MRS-TENG can still show good stability across a wide temperature range (10–90&#xa0;°C) and high humidity (50–90% RH). MRS-TENG has excellent flexibility and environmental adaptability, providing a high-value-added application field for renewable straw resources.</p> Graphical Abstract <p></p>

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Eco-friendly and Flexible Triboelectric Nanogenerator Based on Rice Straw for Sensing and Self-Powered Applications in Harsh Environment

  • 期刊论文

  • 发表日期：

    2026年7月21日

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  • Yinuo Zhang,
  • Lili Wang,
  • Ziyu Mu,
  • Xueke Zhang,
  • Kaiyuan Zheng,
  • Hongxue Ma

摘要

Rice is a major staple crop worldwide, and the management of its abundant straw is crucial. In this work, methyl cellulose (MC) as a film-forming agent and rice straw (RS) are used to prepare composite film (MRS) for constructing a high-output flexible triboelectric nanogenerator (MRS-TENG). The MRS-TENG achieves an open-circuit voltage (VOC) of 272 V, representing a 2.06 times higher voltage than that of RS-TENG. The MRS-TENG successfully monitored human motion and powered 117 LEDs as a self-powered source. The MRS film shows eco-friendly characteristics, releasing primarily CO2 and H2O during combustion without harmful emissions. The variable temperature infrared spectroscopy showed that the MRS structure was stable from − 30 to 150 °C. The VOC of MRS-TENG can still show good stability across a wide temperature range (10–90 °C) and high humidity (50–90% RH). MRS-TENG has excellent flexibility and environmental adaptability, providing a high-value-added application field for renewable straw resources.

Graphical Abstract