In Situ Detection of Hydrogen Peroxide in PEM Fuel Cells

作者：Wen Liu, D. Zuckerbrod · 发表于：Journal of The Electrochemical Society · 年份：2005 · DOI：10.1149/1.1904988 · 被引用次数：206 · 研究领域：Fuel Cells and Related Materials、Electrochemical Analysis and Applications、Analytical Chemistry and Sensors

An electrochemical technique using thin Pt wires as working electrodes was employed to determine the concentration of peroxide within the proton exchange membrane (PEM) of operating fuel cells. The existence of hydrogen peroxide was clearly observed, and its concentration depended primarily on membrane thickness, with thinner membranes displaying higher peroxide concentrations. H 2 O 2 is most likely formed on the anode side of the cell through reduction of O 2 .