Biopolymer-based electrolyte membranes from chitosan incorporated with montmorillonite-crosslinked GPTMS for direct methanol fuel cells

Purwanto, Mochammad; Atmaja, Lukman; Mohamed, Mohamad Azuwa; Salleh, M. T.; Jaafar, Juhana; Ismail, Ahmad Fauzi; Santoso, Mardi; Widiastuti, Nurul

doi:10.1039/c5ra22420a

Cited by 62 publications

(41 citation statements)

References 38 publications

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“…For excellent PEM that can be applied to PEMFCs, high proton conductivity and low permeability are required simultaneously. The overall balance of the membrane can be evaluated by the selectivity factor (the ratio of conductivity and methanol permeability) . As shown in Figure (b), the composite membranes show higher selectivity than that of Nafion 115, owing to the relatively higher conductivity and lower methanol permeability, indicating that doping with SZrO 2 can apparently promote the overall performance of membranes, especially at low SZrO 2 loading, that is, 0.5–1.5 wt %.…”

Section: Resultsmentioning

confidence: 99%

Simultaneous enhancement of proton conductivity and methanol resistance of sulfonated poly(phthalazinone ether sulfone ketone)/superacid sulfated zirconia composite membranes for direct methanol fuel cells

Zhen

et al. 2018

J of Applied Polymer Sci

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Sulfonated poly(phthalazinone ether sulfone ketone) (SPPESK) is a kind of novel non-fluorine polymer, whose high proton conductivity is dependent on high degree of sulfonation, which resulting in loss of dimensional stability. SPPESK/superacid sulfated zirconia (SZrO 2 ) composite proton exchange membranes are fabricated first. The composite membrane shows good dimensional stability, ascribing to the restriction effect of hydrogen bonding force on the mobility and relaxation of polymer chains. Introducing SZrO 2 simultaneously enhances the conductivity and anti-methanol permeation, owing to the connected ion domains, enlarged and aggregated ion clusters, excess proton conduction sites, and good blocking effect to methanol of SZrO 2 . For composite membrane containing 1.5 wt % SZrO 2 , the highest conductivity of 180 mS cm −1 is obtained at 80 C. Compared with pristine SPPESK and Nafion 115, the methanol permeability is reduced by 54 and 77%, and the maximum power density of direct methanol fuel cell is enhanced by 133 and 25%.

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Section: Resultsmentioning

confidence: 99%

Simultaneous enhancement of proton conductivity and methanol resistance of sulfonated poly(phthalazinone ether sulfone ketone)/superacid sulfated zirconia composite membranes for direct methanol fuel cells

Zhen

et al. 2018

J of Applied Polymer Sci

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“…From table 2, the permeability decrease as more fly ash were added. It has been suggested that, this phenomenon is might due to the existence of filler which increases the tightness of composite membrane so it can suppress the methanol movement [8] . The addition of fly ash would make the membrane more difficult for solution to breakthrough as the grains made formation and covered the pore.…”

Section: Methanol Permeability Studymentioning

confidence: 99%

Synthesis and Characterization of Electrolyte Membrane Based Biopolymer Chitosan and Fly Ash Combinations for Fuel Cell Application

Handika¹,

Ghozali²,

Saga³

et al. 2018

Proceedings of the Seminar Nasional Kimia - National Seminar on Chemistry (SNK 2018)

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A composite membrane biopolymer chitosan filled fly ash was fabricated as alternative membrane electrolyte for fuel cell application. The membrane was synthesized from chitosan from deacetylation of shrimp shells and then cross-linked with sulfonic acid network by introducing fly ash. The aim was to investigate fly ash adding to the performance of membrane. The membranes were studied by scanning electron microscopy (SEM), water uptake, methanol uptake, permeability, and proton conductivity assessment. SEM images analysis showed that the fly ash was successfully incorporated in chitosan polymer matrix. Water and methanol uptake for the composite membranes decreased with increasing fly ash loadings. The resulting membranes exhibited proton conductivities up to 6,863 mS/cm. The obtained results indicated that the optimum composite membrane could be considered as a promising candidate to developed membrane electrolite for fuel cell applications.

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“…After quickly wiping off the water adhered to the surface of the membranes, the weight and dimension of wet membranes were measured. The water uptake and swelling ratio could be determined according to the following equation 1 and 2 [18] :…”

Section: Water Uptake and Swelling Ratiomentioning

confidence: 99%

“…Samples from compartment B were taken out every 30 minutes for 6 hours to determine its methanol concentration using high-performance liquid chromatography (HPLC). The methanol permeability values were determined by using equation 4 [18].…”

Section: Methanol Permeability and Proton Conductivitymentioning

confidence: 99%

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Poly(eugenol Sulfonate) - Sulfonated Polyetherimide New Blends Membrane Promising for Direct Methanol Fuel Cell

Muliawati

Santoso

Ismail³

et al. 2017

MJAS

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A new polymeric membrane blended from sulfonated polyetherimide (SPEI) and poly(eugenol sulfonate) (PES) was prepared as proton exchange membrane (PEM) for direct methanol fuel cell (DMFC). The membrane was characterized by Fourier Transform Infrared Spectroscopy (FTIR), thermogravimetric analysis (TGA) and Scanning Electronic Microscopy (SEM). Ion exchange capacity (IEC), proton conductivity, methanol barrier, water uptake, water contact angle and mechanical strength of the membrane was also being determined. The new PES/SPEI membrane with 3 wt.% PES and 20 wt.% SPEI show higher IEC, water uptake, proton conductivity and methanol barrier properties as compared to Nafion 117 membrane. As a conclusion, the results indicate that the SPEI/PES membrane has potential to be employed as PEM for DMFC application.

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Biopolymer-based electrolyte membranes from chitosan incorporated with montmorillonite-crosslinked GPTMS for direct methanol fuel cells

Abstract: A composite membrane was fabricated from biopolymer chitosan and montmorillonite (MMT) filler as an alternative membrane electrolyte for direct methanol fuel cell (DMFC) application.

Cited by 62 publications

References 38 publications

Simultaneous enhancement of proton conductivity and methanol resistance of sulfonated poly(phthalazinone ether sulfone ketone)/superacid sulfated zirconia composite membranes for direct methanol fuel cells

Simultaneous enhancement of proton conductivity and methanol resistance of sulfonated poly(phthalazinone ether sulfone ketone)/superacid sulfated zirconia composite membranes for direct methanol fuel cells

Synthesis and Characterization of Electrolyte Membrane Based Biopolymer Chitosan and Fly Ash Combinations for Fuel Cell Application

Poly(eugenol Sulfonate) - Sulfonated Polyetherimide New Blends Membrane Promising for Direct Methanol Fuel Cell

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