Performance‐enhanced eco‐friendly triboelectric nanogenerator via wettability manipulation of lignin

IF 10.7 Q1 CHEMISTRY, PHYSICAL

EcoMat Pub Date : 2023-09-26 DOI:10.1002/eom2.12413

Hongseok Jo, Dogun Park, Minkyeong Joo, Daekyu Choi, Jisong Kang, Jeong‐Myeong Ha, Ki Hyun Kim, Kwang Ho Kim, Seongpil An

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Abstract

Abstract Eco‐friendly and sustainable energy harvests that can alleviate concerns on the energy crisis and environmental pollution are in demand. Exploiting nature‐derived biomaterials is imperative to develop these carbon‐neutral energy harvesters. In this study, lignin/polycaprolactone nanofiber (NF)‐based triboelectric nanogenerators (TENGs) are fabricated using an electrospinning technique. Nanotextured morphology of electrospun lignin/polycaprolactone NFs and wettability modification of lignin into hydrophilicity can significantly enhance electron transfer between tribopositive and tribonegative materials, resulting in the highest energy‐harvesting efficiency in their class. The output voltage of the lignin‐based TENG exceeds 95 V despite relatively low tapping force of 9 N and frequency of 9 Hz. Various mechanical and physicochemical characterizations, including scanning electron microscopy, nuclear magnetic resonance spectroscopy, x‐ray diffraction analysis, Fourier transform infrared analysis, and atomic force microscopy, are performed, confirming the mechanical durability, biocompatibility, and industrial viability of lignin‐based TENG developed here. image

Abstract Image

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通过木质素润湿性操作提高性能的生态友好型摩擦电纳米发电机

生态友好和可持续的能源收获可以缓解人们对能源危机和环境污染的担忧。利用自然衍生的生物材料是开发这些碳中性能源收集器的必要条件。在这项研究中，木质素/聚己内酯纳米纤维(NF)为基础的摩擦电纳米发电机(TENGs)使用静电纺丝技术。电纺丝木质素/聚己内酯NFs的纳米结构形态和木质素的润湿性改性可以显著增强摩擦正负极材料之间的电子转移，从而获得同类材料中最高的能量收集效率。尽管攻丝力相对较低，为9 N，频率为9 Hz，但木质素基TENG的输出电压仍超过95 V。进行了各种机械和物理化学表征，包括扫描电子显微镜、核磁共振波谱、x射线衍射分析、傅立叶变换红外分析和原子力显微镜，证实了这里开发的木质素基TENG的机械耐久性、生物相容性和工业可行性。图像

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来源期刊

EcoMat

CiteScore

17.30

自引率

0.00%

发文量

审稿时长

4 weeks