Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 72, Issue -, Pages 32-35Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2016.08.022
Keywords
Microbial fuel cell; Localized pH increase; Micro pH electrode; Location sensor
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Funding
- Japan Society for the Promotion of Science (JSPS) [24656312]
- Grants-in-Aid for Scientific Research [15J04909, 24656312] Funding Source: KAKEN
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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 93. (C) 2016 Elsevier B.V. All rights reserved.
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