Measurement of pH Distribution near the Air-cathode of a Single-chamber Microbial Fuel Cell Using Location Sensor-equipped Microelectrodes
Measurement of pH Distribution near the Air-cathode of a Single-chamber Microbial Fuel Cell Using Location Sensor-equipped Microelectrodes
复制标题
使用配备位置传感器的微电极测量单室微生物燃料电池空气阴极附近的 pH 分布
DOI：
10.1016/j.elecom.2016.08.022
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发表时间：
2016
影响因子：
5.4
通讯作者：
O. Ichihashi and K. Hirooka
中科院分区：
文献类型：
--
作者：
A. Motoyama;O. Ichihashi and K. Hirooka
已知微生物燃料电池阴极处的氧还原反应是导致pH局部升高的原因，但难以确定测量点与阴极之间的精确距离。在这项研究中，一个位置传感器连接到一个微型pH电极，以确定这个距离在测量pH值分布。在没有底物的情况下，pH在距阴极0至0.8mm的范围内略微增加并达到最大值7.2，而在有底物的情况下，pH在0至1.4mm的范围内急剧增加并达到9.3。
The oxygen reduction reaction at the cathode of a microbial fuel cell is known to be responsible for a localized increase in pH, but it is difficult to determine the precise distance between the measurement points and the cathode. In this study, a location sensor was attached to a micro pH electrode to determine this distance during the measurement of pH distribution. Without substrate, the pH slightly increased within the range of 0 to 0.8 mm from the cathode and reached a maximum of 7.2, whereas with substrate, the pH sharply increased within the range of 0 to 1.4 mm and reached 9.3.