TY - JOUR
T1 - WS2-Pt Nanostructure-Based Composite for Hydrogen Gas Sensing with Ultra-Fast Response and Recovery Rates
AU - Gottam, Sandeep Reddy
AU - Wang, Li Wen
AU - Wu, Tai Yu
AU - Liu, Yi Hung
AU - Chu, Sheng Yuan
N1 - Publisher Copyright:
© 2023 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited
PY - 2023/5
Y1 - 2023/5
N2 - Hydrogen is regarded as a secondary energy carrier derived from hydrogen evolution reactions. To ensure safety when utilizing this hazardous gas, hydrogen gas sensors with rapid response and recovery times, high sensor sensitivity, and stability are essential. A high surface-to-volume ratio with complete adsorption and desorption of ions renders WS2 a promising candidate for hydrogen gas sensor applications. This study introduces a novel high-performance hydrogen gas sensor based on a metal sulfide-platinum (WS2-Pt) composite. The WS2-Pt composite was successfully synthesized using a solution-based process and spin-coating techniques. WS2-Pt nanostructures were densely distributed on a gallium nitride/sapphire substrate, and a hydrogen sensing device was fabricated. The metal sulfide/platinum composite demonstrated ultra-fast sensor response of approximately 3 s toward 500 ppm hydrogen with a satisfactory sensor sensitivity. The response rate was notably encouraging. This research represents the first attempt in the sensor domain to enhance the performance of hydrogen sensing devices using metal sulfide/Pt active layers.
AB - Hydrogen is regarded as a secondary energy carrier derived from hydrogen evolution reactions. To ensure safety when utilizing this hazardous gas, hydrogen gas sensors with rapid response and recovery times, high sensor sensitivity, and stability are essential. A high surface-to-volume ratio with complete adsorption and desorption of ions renders WS2 a promising candidate for hydrogen gas sensor applications. This study introduces a novel high-performance hydrogen gas sensor based on a metal sulfide-platinum (WS2-Pt) composite. The WS2-Pt composite was successfully synthesized using a solution-based process and spin-coating techniques. WS2-Pt nanostructures were densely distributed on a gallium nitride/sapphire substrate, and a hydrogen sensing device was fabricated. The metal sulfide/platinum composite demonstrated ultra-fast sensor response of approximately 3 s toward 500 ppm hydrogen with a satisfactory sensor sensitivity. The response rate was notably encouraging. This research represents the first attempt in the sensor domain to enhance the performance of hydrogen sensing devices using metal sulfide/Pt active layers.
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U2 - 10.1149/2162-8777/acd142
DO - 10.1149/2162-8777/acd142
M3 - Article
AN - SCOPUS:85158893795
SN - 2162-8769
VL - 12
JO - ECS Journal of Solid State Science and Technology
JF - ECS Journal of Solid State Science and Technology
IS - 5
M1 - 057001
ER -