Performance of the electrochemical hydrogen pump of a proton-conducting oxide for the tritium monitor
Performance of the electrochemical hydrogen pump of a proton-conducting oxide for the tritium monitor
复制标题
用于氚监测器的质子传导氧化物电化学氢泵的性能
DOI：
10.1016/j.fusengdes.2008.06.038
复制
发表时间：
2008
影响因子：
1.7
通讯作者：
T. Uda
中科院分区：
文献类型：
--
作者：
Masahiro Tanaka;Y. Asakura;T. Uda
为了提高氚监测器的灵敏度，我们提出了一种新型的氚监测器，并构建了一个原型系统，配备了一个闭环和质子导电氧化物作为电化学氢泵。为了评估使用CaZr0.9In0.1O3−α的氢泵的性能，在873至1073 K的温度范围内，在恒定电流下，通过水蒸气电解进行氢提取。在0.5A和973 K下，氢的提取速率达到1.8cm ~ 3/min。本电池表现出混合质子和电子空穴传导和质子的运输数减少在相对较高的温度。这表明在水蒸气电解条件下操作的氢泵不需要高温。此外，作为初步可行性研究，使用闭环系统和氢泵装置对氢气进行浓缩试验。发现在50 min的时间内，闭合回路中的氢的浓缩速率达到阳极室中的水蒸气的浓缩速率的5倍。
To improve the sensitivity of the tritium monitor, we have proposed a new type of tritium monitor and constructed a prototype system equipped with a closed loop and a proton-conducting oxide as an electrochemical hydrogen pump. To assess the performance of the hydrogen pump using CaZr0.9In0.1O3−α, hydrogen extraction by water vapor electrolysis is demonstrated at a constant current in the temperature range from 873 to 1073K. The hydrogen extraction rate reached 1.8cm3/min at 0.5A and 973K. The present cell exhibited mixed proton and electron hole conduction and the transport number of protons decreased at relatively high temperatures. This suggested that high temperatures are not required for a hydrogen pump operating under water vapor electrolysis conditions. Furthermore, as an initial feasibility study, a concentration test was performed on hydrogen gas using the closed loop system and hydrogen pump apparatus. It was found that the concentration rate of hydrogen in the closed loop reached five times that of water vapor in the anode compartment over a period of 50min.