Biowaste Eggshell Membranes for Bio-triboelectric Nanogenerators and Smart Sensors

Meng-Fang Lin; Po-Yen Chang; Chia-Hsien Lee; Xin-Xian Wu; Ru-Jong Jeng; Chih-Ping Chen

doi:10.1021/acsomega.2c07292

Biowaste Eggshell Membranes for Bio-triboelectric Nanogenerators and Smart Sensors

ACS Omega. 2023 Feb 9;8(7):6699-6707. doi: 10.1021/acsomega.2c07292. eCollection 2023 Feb 21.

Authors

Meng-Fang Lin^{1

2

3}, Po-Yen Chang^{1

2

4}, Chia-Hsien Lee^{1

2}, Xin-Xian Wu^{1

2}, Ru-Jong Jeng⁴, Chih-Ping Chen^{1

2}

Affiliations

¹ Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan.
² Center for Plasma and Thin Film Technologies, Ming Chi University of Technology, New Taipei City 24301, Taiwan.
³ Research Center for Intelligent Medical Devices, Ming Chi University of Technology, New Taipei City 24301, Taiwan.
⁴ Institute of Polymer Science and Engineering, National Taiwan University, Taipei 106, Taiwan.

Abstract

In this study, we used a simple and cost-effective method to fabricate triboelectric nanogenerators (TENGs) based on biowaste eggshell membranes (EMs). We prepared stretchable electrodes with various types of EMs (hen, duck, goose, and ostrich) and employed them as positive friction materials for bio-TENGs. A comparison of the electrical properties of the hen, duck, goose, and ostrich EMs revealed that the output voltage of the ostrich EM could reach up to 300 V, due to its abundant functional groups, natural fiber structure, high surface roughness, high surface charge, and high dielectric constant. The output power of the resulting device reached 0.18 mW, sufficient to power 250 red light-emitting diodes simultaneously, as well as a digital watch. This device also displayed good durability when subjected to 9000 cycles at 30 N at a frequency of 3 Hz. Furthermore, we designed an ostrich EM-TENG as a smart sensor for the detection of body motion, including leg movement and the pressing of different numbers of fingers.