Milk-based triboelectric nanogenerator on paper for harvesting energy from human body motion. (February 2019)

• Record Type: Journal Article
• Authors: Xia, Kequan; Zhu, Zhiyuan; Zhang, Hongze; Du, Chaolin; Fu, Jiangming; Xu, Zhiwei
• Is Part Of: Nano energy. Volume 56(2019)
• Page Start: 400
• Page End: 410
• Publication Date: 2019-02
• Subjects: Triboelectric nanogenerator (TENG) -- Energy harvesting -- Milk -- Paper -- Human body motion -- Three working patterns; Nanoscience -- Periodicals; Nanotechnology -- Periodicals; Nanostructured materials -- Periodicals; Power resources -- Technological innovations -- Periodicals; Nanoscience; Nanostructured materials; Nanotechnology; Power resources -- Technological innovations; Periodicals; 621.042
• DOI: 10.1016/j.nanoen.2018.11.071
• Languages: English
• ISSNs: 2211-2855

Abstract

Abstract: In recent years, the triboelectric nanogenerator (TENG) has been demonstrated as a renewable power source by converting ambient energy into remarkable electrical output. In this study, milk film was investigated as a novel triboelectric material, and the results revealed that it occupies a top-level positive position in the triboelectric series owing to its strong ability of losing electrons during the triboelectrification process. A friction process based on sandpaper was introduced to increase the surface roughness of polytetrafluoroethylene (PTFE) tape to enhance the output performance of the proposed milk-based paper TENG (MP-TENG). The approximate values of the short-circuit current ( I sc ), open-circuit voltage ( V oc ), and output power density reached 93μA, 392 V, and 583.75μW/cm 2, respectively. To increase the output performance, a lozenge stacked MP-TENG was designed and fabricated, and enhanced output was achieved. The proposed MP-TENGs are capable of providing three working patterns corresponding to human body movements. The working patterns 1, 2, and 3 can harvest energy produced by foot movement, arm motion, and lumber motion, respectively. The motion state of the human body, such as walking, running, or jumping, can be detected. Additionally, the MP-TENG can be used to test the protein content of milk. The generated electrical output of an MP-TENG with a size of 5 cm × 5 cm is capable of directly powering 82 blue high-power LEDs with a working voltage of 3.4 V. This paper proposes a potential light-weight, flexible, and wearable electronic device for energy harvesting and food quality detection. Graphical abstract: Highlights: Solid milk film was firstly introduced to make TENG, which can also detect its protein content. The MP-TENG can harvest various body movement energy, and a friction process can enhance its output. The MP-TENGs can detect the motion state of the human body, including walking, running, and jumping. The MP-TENGs are prepared using simple process based on cost efficient household material. The MP-TENG with a size of 5cm×5cm was capable of lighting 82 blue high-power LEDs.