SAW sensor employing Pd/Ni nanowire for super-fast hydrogen detection at room temperature

Xinyu Wang; Lingling Du; Lina Cheng; Shoupei Zhai; Chao Zhang; Wen Wang; Yong Liang; Dachi Yang; Qiang Chen; Gang Lei

Results in Chemistry (Jan 2022)

SAW sensor employing Pd/Ni nanowire for super-fast hydrogen detection at room temperature

Xinyu Wang,
Lingling Du,
Lina Cheng,
Shoupei Zhai,
Chao Zhang,
Wen Wang,
Yong Liang,
Dachi Yang,
Qiang Chen,
Gang Lei

Affiliations

Xinyu Wang: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
Lingling Du: Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, and Department of Electronics, College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China
Lina Cheng: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
Shoupei Zhai: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
Chao Zhang: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
Wen Wang: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding authors at: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China (W. Wang).
Yong Liang: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
Dachi Yang: Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, and Department of Electronics, College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300350, China; Corresponding authors at: Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China (W. Wang).
Qiang Chen: State Key Laboratory of Technology in Space Cryogenic Propellants, Beijing 100028, China
Gang Lei: State Key Laboratory of Technology in Space Cryogenic Propellants, Beijing 100028, China

Journal volume & issue: Vol. 4
p. 100327

Abstract

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A Pd/Ni nanowire (NW) film coated surface acoustic wave (SAW) sensor exhibited super-fast response as 2 s to 1 ∼ 3 v/v % hydrogen at room temperature (25 ℃). By using anode aluminum oxide (AAO) template-confined electrodeposition, the Pd/Ni NWs were prepared, and then deposited on the surface of the SAW device to build the SAW hydrogen sensor. The developed SAW sensor was integrated in a phase discriminating circuit, and experimentally characterized. The larger specific surface of Pd/Ni NW contributes well to improvement of the response time.

Published in Results in Chemistry

ISSN: 2211-7156 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/results-in-chemistry/

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