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Tantalum-Palladium: Hysteresis-Free Optical Hydrogen Sensor Over 7 Orders of Magnitude in Pressure with Sub-Second Response

机译:Tantalum-Palladium:无滞后光学氢传感器超过7个级别,压力与次级第二响应

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摘要

Hydrogen detection in a reliable, fast, and cost-effective manner is a prerequisite for the large-scale implementation of hydrogen in a green economy. Thin film Ta1-yPdy is presented as an effective optical sensing material with extremely wide sensing ranges covering at least 7 orders of magnitude in hydrogen pressure. Nanoconfinement of the Ta1-yPdy layer suppresses the first-order phase transitions present in bulk and ensures a sensing response free of any hysteresis. Unlike other sensing materials, Ta1-yPdy features the special property that the sensing range can be easily tuned by varying the Pd concentration without a reduction of the sensitivity of the sensing material. Combined with a suitable capping layer, sub-second response times can be achieved even at room temperature, faster than any other known thin-film hydrogen sensor.
机译:氢检测可靠,快速,经济高效的方式是绿色经济中氢的大规模实施的先决条件。 薄膜Ta1-YPDY作为一种有效的光学传感材料,具有极宽的感测范围,覆盖在氢气压力中的至少7个级。 TA1-YPDY层的纳米镍抑制了大量存在的一阶相转变,并确保不含任何滞后的感测响应。 与其他传感材料不同,TA1-YPDY具有特殊性,通过改变PD浓度而不会降低传感材料的灵敏度,可以容易地调整感测范围的特殊性质。 结合合适的覆盖层,即使在室温下,可以比任何其他已知的薄膜氢传感器更快地实现亚秒响应时间。

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