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- W1993544954 abstract "Abstract Ceramic carbon electrodes (CCEs) have been produced via the sol–gel process using 20% Pt on Vulcan XC72 carbon black and tetra ethyl orthosilicate (TEOS) as the organosilane precursor. This process produces a homogenous distribution of SiO 2 and carbon supported Pt catalyst. Electrochemical experiments (cyclic voltammetry, electrochemical impedance spectroscopy) were performed to determine the effect of SiO 2 loading on the active area of Pt in the catalyst layer. A volcano-type dependence was observed with the maximum active area of Pt occurring with an SiO 2 loading of 45% by mass. Pt utilization was lower than that achieved with Nafion-based catalyst layers and was explained in terms of the lower proton conductivity of SiO 2 compared to Nafion. These CCE structures may be useful for high temperature fuel cell systems." @default.
- W1993544954 created "2016-06-24" @default.
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- W1993544954 date "2009-04-01" @default.
- W1993544954 modified "2023-09-26" @default.
- W1993544954 title "Electrochemical studies of ceramic carbon electrodes for fuel cell systems: A catalyst layer without sulfonic acid groups" @default.
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- W1993544954 doi "https://doi.org/10.1016/j.electacta.2009.01.007" @default.
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