Hauenstein P, Seeberger D, Wasserscheid P, Thiele S (2020)
Publication Type: Journal article
Publication year: 2020
Book Volume: 118
Article Number: 106786
DOI: 10.1016/j.elecom.2020.106786
Liquid Organic Hydrogen Carrier (LOHC) systems offer a very interesting option for hydrogen storage in the existing infrastructure for common fuels. Technically most attractive is the direct use of LOHC-bound hydrogen in a low-temperature PEM fuel cell. Here, the isopropanol/acetone LOHC system is suggested to produce electricity from a condensable liquid without CO2 emissions. A high-performance direct isopropanol fuel cell using a vaporizer and a commercial fuel cell test system is demonstrated. For the first time backpressure is used to enhance the performance. The self-fabricated GDEs combined with a Nafion composite membrane achieved a power density of 203 mW cm−2 for Isopropanol/Air operation at 300 kPa absolute and 85 °C. By increasing the operation temperature to 100 °C a peak power density of 254 mW cm−2 is achieved, exceeding the highest reported values for isopropanol fuel cells operated with air by over 80%. The observed increase in performance can be attributed to the higher reaction rate of the electrooxidation of isopropanol at the anode side during pressurized conditions and to the reduced acetone-poisoning of the Pt-Ru catalyst at elevated temperatures.
APA:
Hauenstein, P., Seeberger, D., Wasserscheid, P., & Thiele, S. (2020). High performance direct organic fuel cell using the acetone/isopropanol liquid organic hydrogen carrier system. Electrochemistry Communications, 118. https://dx.doi.org/10.1016/j.elecom.2020.106786
MLA:
Hauenstein, Pascal, et al. "High performance direct organic fuel cell using the acetone/isopropanol liquid organic hydrogen carrier system." Electrochemistry Communications 118 (2020).
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