期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 54, 期 -, 页码 10-13出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2015.02.010
关键词
Glucose fuel cell; Porous silicon; Anion exchange membrane; Catalytic inks; Cobalt(II) phthalocyanine; Miniature fuel cell
资金
- ANR P2N (project GLUCOPAC) [ANR-10-NANO-0019]
- ICMG [FR 2607]
- LabEx AR-CANE [ANR-11-LABX-0003-01]
- French RENATECH network
- Agence Nationale de la Recherche (ANR) [ANR-10-NANO-0019] Funding Source: Agence Nationale de la Recherche (ANR)
Mesoporous silicon membranes are functionalized with ammonium groups and evaluated as high efficient anion exchange membrane in a miniaturized alkaline glucose fuel cell setup. N-Trimethoxysilylpropyl-N,N,N-trimethylammonium chloride is grafted onto the pore walls of porous silicon resulting in the anionic conductivity enhancement. The functionalization process is followed by FTIR spectroscopy where the optimized parameter could be determined. The ionic conductivity is measured using impedance spectroscopy and gives 5.6 mS cm(-1). These modified mesoporous silicon membranes are integrated in a specially designed miniature alkaline (pH 13) glucose/air fuel cell prototype using a conventional platinum-carbon anode and a cobalt phthalocyanine-carbon nanotube cathode. The enhanced anion conductivity of these membranes leads to peak power densities of 7 +/- 0.12 mW cm(-2) at air breathing conditions at room temperature. (C) 2015 Elsevier B.V. All rights reserved.
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