Electrochemical Methods Laboratory-Analytical and Applied Chemistry Department, IQS School of Engineering, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain.
Sensors (Basel). 2020 Dec 18;20(24):7258. doi: 10.3390/s20247258.
In many industrial fields, there is a need to design and characterize on-line and on-board hydrogen monitoring tools able to operate under extreme conditions. One of these applications is in future nuclear fusion reactors, which will use hydrogen isotopes as a plasma fuel. In this context, the measurement of the concentration of these hydrogen isotopes will be of interest to ensure the correct operating conditions for such reactors. Hydrogen sensors based on solid-state electrolytes will be the first step in the development of new analytical tools able to quantify deuterium and tritium in aggressive environments. In the present work, amperometric hydrogen sensors were constructed and evaluated using two solid-state electrolytes, BaCeZrYO and Sr(CeZr)YbO. Prototype sensors were built in order to study their sensitivity in on-line measurements. The experiments were performed in a reactor with a hydrogen-controlled environment. The sensors were evaluated at 500 and 600 °C in amperometric mode by applying 2 and 4 V voltages between electrodes. Both sensors showed increases in sensitivity when the temperature or voltage were increased.
在许多工业领域，需要设计和表征能够在极端条件下在线和板载运行的氢气监测工具。其中一个应用是在未来的核聚变反应堆中，这些反应堆将使用氢同位素作为等离子体燃料。在这种情况下，测量这些氢同位素的浓度对于确保此类反应堆的正确运行条件将是很有意义的。基于固态电解质的氢气传感器将是开发能够在恶劣环境中定量氘和氚的新型分析工具的第一步。在本工作中，使用两种固态电解质 BaCeZrYO 和 Sr(CeZr)YbO 构建和评估了电流型氢气传感器。构建了原型传感器以研究它们在在线测量中的灵敏度。实验在具有氢控环境的反应堆中进行。在 500 和 600°C 下以安培模式通过在电极之间施加 2 和 4 V 电压评估了传感器。当温度或电压升高时，两个传感器的灵敏度都有所提高。
