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Open AccessArticle

The Performance of Electron-Mediator Modified Activated Carbon as Anode for Direct Glucose Alkaline Fuel Cell

by Zi Li 1, Xianhua Liu 1,*, Peng Liu 1 and Pingping Zhang 2,*
1
Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
2
College of Food Science and Engineering, Tianjin Agricultural University, Tianjin 300384, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Minhua Shao
Catalysts 2016, 6(7), 95; https://doi.org/10.3390/catal6070095
Received: 24 May 2016 / Revised: 19 June 2016 / Accepted: 23 June 2016 / Published: 28 June 2016
Six different electron mediators were immobilized on the activated carbon (AC) anode and their effects on performance of a direct glucose alkaline fuel cell were explored. 2-hydroxy-1, 4-naphthoquinone (NQ), methyl viologen (MV), neutral red (NR), methylene blue (MB), 1, 5-dichloroanthraquinone (DA) and anthraquinone (AQ) were doped in activated carbon (AC), respectively, and pressed on nickel foam to fabricate the anodes. NQ shows comparable performance with MV, but with much lower cost and environmental impact. With NQ-AC anode, the fuel cell attained a peak power density of 16.10 Wm−2, peak current density of 48.09 Am−2, and open circuit voltage of 0.76 V under the condition of 1 M glucose, 3 M KOH, and ambient temperature. Polarization curve, EIS and Tafel measurements were also conducted to explore the mechanism of performance enhancement. The high performance is likely due to the enhanced charge transfer and more reactive sites provided on the anode. View Full-Text
Keywords: immobilization; electron mediator; activated carbon; glucose; alkaline fuel cell immobilization; electron mediator; activated carbon; glucose; alkaline fuel cell
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MDPI and ACS Style

Li, Z.; Liu, X.; Liu, P.; Zhang, P. The Performance of Electron-Mediator Modified Activated Carbon as Anode for Direct Glucose Alkaline Fuel Cell. Catalysts 2016, 6, 95.

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