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Sustainable Triboelectric Nanogenerator from Abalone Shell Powder for Self-Powered Humidity Sensing.

Yunsook Yang1, Farhan Akhtar1, Shahzad Iqbal1

  • 1Faculty of Applied Energy System, Department of Electronic Engineering, Jeju National University, Jeju 63243, Republic of Korea.

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Summary
This summary is machine-generated.

This study introduces a sustainable triboelectric nanogenerator (TENG) from abalone shells that generates power and senses humidity. This eco-friendly device offers a promising solution for sustainable energy harvesting and environmental monitoring.

Keywords:
abalone shell powder triboelectric nanogenerator (ASP-TENG)self-powered humidity sensorsustainable circular electronics

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Area of Science:

  • Materials Science
  • Environmental Science
  • Energy Harvesting

Background:

  • Most self-powered sensors use unsustainable synthetic polymers.
  • There is a need for environmentally friendly alternatives for IoT applications.

Purpose of the Study:

  • To develop a sustainable triboelectric nanogenerator (TENG) from marine biowaste.
  • To create a multifunctional device capable of energy generation and humidity sensing.

Main Methods:

  • Utilized abalone shell powder (ASP), primarily calcium carbonate (CaCO3), as the tribopositive layer.
  • Combined ASP with polytetrafluoroethylene (PTFE) as the tribonegative layer to construct the ASP-TENG device.

Main Results:

  • The ASP-TENG device achieved a peak open-circuit voltage (VOC) of 410 V and a peak power density of 2.79 W·m-2.
  • Demonstrated efficient self-powered humidity sensing, with output voltage decreasing from 410 V to 176 V as relative humidity increased from 40% to 80%.

Conclusions:

  • The ASP-TENG offers a sustainable and multifunctional approach for energy harvesting and environmental monitoring.
  • This work highlights the potential of marine biowaste in developing eco-friendly sensing systems.