晶粒结构调节：一种提高钯薄膜电阻式氢传感器灵敏度和基线稳定性的新方法

IF 8.1 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy Pub Date : 2025-06-06 DOI:10.1016/j.ijhydene.2025.06.005

Yizhou Jiao , Weijiang Chen , Qiaogen Zhang , Zhehao Pei , Le Feng , Peichen Cao

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引用次数: 0

摘要

钯薄膜电阻式氢气传感器的高灵敏度和电阻基线稳定性是准确检测低浓度氢气的关键。本研究提出了一种基于晶粒结构调节的方法来提高钯薄膜电阻式氢传感器的灵敏度和基线稳定性。结果表明，将钯膜的晶粒结构调整到粒径较小的Ⅱ区，可以显著提高钯电阻式氢传感器的灵敏度和基线稳定性。与T区结构相比，Ⅱ区结构的传感器灵敏度提高了50%以上，电阻基线漂移降低到0.01%以下，对低于15 μL/L的氢能产生明显的响应。本文提出的方法为进一步提高钯基阻式氢传感器对低浓度氢气的检测能力提供了一种新的途径。

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Grain structure regulation: A novel approach to enhance the sensitivity and baseline stability of palladium thin film resistive hydrogen sensors

Achieving high sensitivity and resistance baseline stability in palladium thin film resistive hydrogen sensors is essential for the accurate detection of low-concentration hydrogen. This study proposes a method based on grain structure regulation to enhance the sensitivity and baseline stability of Pd thin film resistive hydrogen sensors. The results show that adjusting the grain structure of the Pd film to zone Ⅱ with smaller grain size significantly improves the sensitivity and baseline stability of the Pd resistive hydrogen sensors. Compared to zone T structure, the sensitivity of the sensor with zone Ⅱ structure is increased by more than 50 %, and the resistance baseline drift is reduced to below 0.01 %, enabling the sensor to produce a distinct response to hydrogen lower than 15 μL/L. The methodology proposed in this work provides a novel approach for further improvement of the detection capability for Pd-based resistive hydrogen sensors to low-concentration hydrogen gas.

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来源期刊

International Journal of Hydrogen Energy 工程技术-环境科学

CiteScore

13.50

自引率

25.00%

发文量

3502

审稿时长

60 days

期刊介绍： The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc. The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.