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Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

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Triboelectric Hydrogen Gas Sensor with Pd Functionalized Surface.

Sung-Ho Shin¹, Yang Hyeog Kwon², Young-Hwan Kim³

¹Department of Electrical Engineering, Chungnam National University, Daejeon 34134, Korea. shinsh@cnu.ac.kr.

Nanomaterials (Basel, Switzerland)

|March 25, 2017

Summary

This study introduces a novel hydrogen gas sensor powered by friction, eliminating the need for external batteries. The sensor

Keywords:

H2 detection gas sensor palladium self-powered sensor triboelectricity

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Hydrogen Production and Utilization in a Membrane Reactor

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

Area of Science:

Materials Science
Chemical Sensors
Nanotechnology

Background:

Palladium (Pd)-based sensors offer fast reaction and high sensitivity for hydrogen (H₂) detection.
Existing H₂ sensors require external power sources, limiting their application.
Contact electrification offers a potential alternative sensing mechanism.

Purpose of the Study:

To develop a self-powered hydrogen gas sensor using contact electrification.
To investigate the influence of hydrogen on the triboelectric charging behavior of Pd-coated surfaces.
To demonstrate a novel sensing mechanism for hydrogen gas detection.

Main Methods:

Fabrication of a sensor using Palladium (Pd)-coated Indium Tin Oxide (ITO) and Polyethylene Terephthalate (PET) film.
Measurement of output voltages generated during contact electrification upon exposure to H₂.
Analysis of the relationship between H₂ concentration and sensor output voltage.

Main Results:

The sensor generated output voltages proportional to the H₂ concentration.
Changes in the work function of the Pd-coated surface altered triboelectric charging.
Reproducible and sensitive sensor responses were observed up to 1% H₂ exposure.

Conclusions:

A self-powered H₂ gas sensor based on triboelectric principles was successfully developed.
The sensor's performance is linked to hydrogen-induced changes in the work function of Pd.
This approach is adaptable for developing triboelectric sensors for other gas species.