A novel multi-porous and hydrophilic anode diffusion layer for DMFC

Wang, Yituo; Liu, Zheng; Han, Guimei; Lu, Lixin; Wang, Meng; Li, Jianling; Wang, Xindong

doi:10.1016/j.ijhydene.2014.08.098

Cited by 21 publications

(6 citation statements)

References 21 publications

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“…Direct methanol fuel cells (DMFCs) are considered as alternative power sources for portable and stationary applications as they allow liquid fuel without the requirement of any fuel-processing units. − This helps simple and compact designs of DMFC systems which can be operated at the temperature range between 25 and 120 °C without any membrane dehydration. Membrane electrode assemblies (MEAs), composed of a proton exchange membrane (PEM) and the electrodes (anode and cathode), are the key components that determine the electrochemical performances of DMFC. − To date, perfluorinated sulfonic acid (PFSA) membranes (e.g., Nafion) have been widely used as PEM materials because of their excellent proton conductivity and durability .…”

Section: Introductionmentioning

confidence: 99%

Proton Conducting Nafion-Sulfonated Graphene Hybrid Membranes for Direct Methanol Fuel Cells with Reduced Methanol Crossover

et al. 2015

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Sulfonic acid functionalized graphene (S-graphene) is explored as a potential inorganic filler as well as a solid acid proton conducting medium to realize a hybrid membrane with Nafion for a direct methanol fuel cell (DMFC). The simple, but effective, functionalization of graphene is performed by sulfonic acid containing aryl radicals to increase the number of sulfonate groups per unit volume of graphene domain. Nafion−S-graphene hybrid membranes increase compactness of ionic domains and enhanced proton conductivity while restricting the methanol crossover across the membrane. DMFCs with a Nafion−S-graphene (1 wt %) hybrid membrane deliver a peak power density of 118 mW cm −2 at a load current density of 450 mA cm −2 while operating at 70 °C under an ambient pressure. By contrast, operating under identical conditions, a peak power density of 54 mW cm −2 at a load current density of 241 mA cm −2 is obtained with the pristine recast Nafion membrane. The Nafion−S-graphene hybrid membranes are extremely beneficial and useful for DMFCs in addressing many critical problems associated with commercial Nafion membranes.

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Section: Introductionmentioning

confidence: 99%

Proton Conducting Nafion-Sulfonated Graphene Hybrid Membranes for Direct Methanol Fuel Cells with Reduced Methanol Crossover

et al. 2015

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“…Catalyst slurry was prepared as following procedures in our previous work [29][30][31] Electrochemical impedance spectroscopy (EIS) of DMFCs at 400mA cm -2 were performed using VMP2 electrochemical workstation with the frequency ranging from 99 kHz to 9 mHz.…”

Section: Membrane Electrode Assembly (Mea) Fabricationmentioning

confidence: 99%

A novel catalyst layer structure based surface-patterned Nafion® membrane for high-performance direct methanol fuel cell

Chen

Wang

Zhou

et al. 2018

Electrochimica Acta

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“…The composition of Nafion and CNF that used in preparing PL from others researchers [15][16][17]29,30] were selected as a guideline to determine the screening level. In present study, Nafion content was varied as 2.0, 3.0 and 4.0 mg cm À2 , corresponded to 5 wt%, 10 wt% and 15 wt%, respectively.…”

Section: One-factor-at-a-timementioning

confidence: 99%

“…Besides that, the wettability of the micro PL was also improved by addition of Nafion ionomer, which results a better performance in low temperature DMFC with hydrophilic micro PL compared to the hydrophobic micro PL. Wang et al [17] were studied the effect of hydrophilic treatment on anode micro PL for DMFC. An impressive power density output were obtained; 221 mW cm À2 for hydrophobic micro PL, 240 mW cm À2 for hydrophilic micro PL and 260 mW cm À2 for hydrophilic + nitrated treatment micro PL.…”

Section: Introductionmentioning

confidence: 99%

Optimization of a porous carbon nanofiber layer for the membrane electrode assembly in DMFC

Zainoodin

Kamarudin

Daud

et al. 2015

Energy Conversion and Management

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A novel multi-porous and hydrophilic anode diffusion layer for DMFC

Cited by 21 publications

References 21 publications

Proton Conducting Nafion-Sulfonated Graphene Hybrid Membranes for Direct Methanol Fuel Cells with Reduced Methanol Crossover

Proton Conducting Nafion-Sulfonated Graphene Hybrid Membranes for Direct Methanol Fuel Cells with Reduced Methanol Crossover

A novel catalyst layer structure based surface-patterned Nafion® membrane for high-performance direct methanol fuel cell

Optimization of a porous carbon nanofiber layer for the membrane electrode assembly in DMFC

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