Development of expanded graphite composite-based triboelectric nanogenerator for sustainable energy generation

IF 2.8 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Materials Science: Materials in Electronics Pub Date : 2025-05-24 DOI:10.1007/s10854-025-14952-3

Sebghatullah Amini, Rumana Farheen Sagade Muktar Ahmed, Sangamesha Madanahalli Ankanathappa, Krishnaveni Sannathammegowda

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引用次数: 0

Abstract

Triboelectric Nanogenerators (TENG), transformational devices that harness mechanical energy to generate electricity, are pivotal for driving the advancement of autonomous technologies in today’s mobile-centric world. In this study, a TENG is developed, using a novel composite film of Polyvinyl Alcohol-Expanded Graphite (PVA-EGr) as the positive triboelectric layer, Polyurethane (PU) as the negative triboelectric layer, and aluminum (Al) foil tape as electrodes. Various characterizations are performed to study the properties of the composite film and compared to pristine PVA film, including crystallographic structure, surface morphology, elemental composition, chemical bonding, and analysis of functional groups present in both films. Further, the electrical performance of the fabricated devices shows that the TENG with 0.4 g of EGr achieves the highest output voltage, current, and power of 264.68 V, 6.87 μA, and 2.88 mW, respectively. This optimized device demonstrates its capability by charging different capacitors and powering a series of green LEDs, highlighting its suitability for practical applications in electronic devices.

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可持续能源发电用膨胀石墨复合摩擦纳米发电机的研制

摩擦纳米发电机（TENG）是一种利用机械能发电的变革性设备，在当今以移动为中心的世界中，它对于推动自主技术的进步至关重要。本研究以聚乙烯醇-膨胀石墨（PVA-EGr）复合膜为正摩擦电层，聚氨酯（PU）为负摩擦电层，铝（Al）箔带为电极，研制了一种新型的TENG。进行各种表征来研究复合膜的性能，并将其与原始PVA膜进行比较，包括晶体结构、表面形貌、元素组成、化学键和两种膜中存在的官能团的分析。电学性能表明，当EGr为0.4 g时，输出电压为264.68 V，输出电流为6.87 μA，输出功率为2.88 mW。这种优化的设备通过给不同的电容器充电和为一系列绿色led供电来展示其能力，突出了其在电子设备中的实际应用适用性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Materials Science: Materials in Electronics 工程技术-材料科学：综合

CiteScore

5.00

自引率

7.10%

发文量

1931

审稿时长

2 months

期刊介绍： The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.