Preparation of Sulfonated PVA-TMSP Membranes for Direct Methanol Fuel Cell

Haryadi, Haryadi; Riniati,; Anisa, Sofiatun; Utami, Ayu Tri

doi:10.7454/mss.v16i2.1403

Cited by 2 publications

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“…The proton conductivity of the membrane based on PVA/SSA/SiWA/10wt.%SiO2 reaches a maximum of 6,72.10 -3 S.cm -1 , and decreases when the SiO2 content exceeds 10 wt.%. The obtained value is higher than that of the Nafion®112 membrane (5,9.10 -3 S.cm -1 ) [36]. This is in agreement with the results which show that the latter membrane also has the best hydration rate.…”

Section: Water Uptake and Proton Conductivity Of The Membrane Pva/ssasupporting

confidence: 91%

“…It goes from 0,672.10 -3 S.cm -1 for the PVA/SSA/SiWA/10wt.%SiO2 membrane 110 µm thick to 6,72.10 -3 S.cm -1 for PVA/SSA/SiWA/10wt.%SiO2 membrane 450 µm thick, for thicknesses greater than 450 µm the ionic conductivity remains close to 6,72.10 -3 S.cm -1 . figure 11(a), the IEC of PVA/SSA/SiWA hybrid membrane varies from 0,90 to 2,20 mmol.g -1 , and increases with SiWA content up to a maximum value of 2,20 mmol.g -1 obtained with PVA/SSA/35wt.%SiWA hybrid membrane, the value obtained is higher than Nafion 115 (0,90 mmol.g -1 ) [36]. This result indicates that an increase in silicotungstic acid content can lead to higher ion exchange capacity.…”

Section: Water Uptake and Proton Conductivity Of The Membrane Pva/ssamentioning

confidence: 96%

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Fabrication and Properties of Hybrid Membranes Based on Poly (Vinyl Alcohol), Sulfosuccinic Acid and Salts of Heteropolyacid with or without Silica for Fuel Cells Applications

Maarouf¹,

Alouane²,

Tazi³

et al. 2020

Adv. sci. technol. eng. syst. j.

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Novel ionic polymers were synthesized by crosslinking of poly (vinylalcohol) (PVA) with sulfosuccinic acid (SSA) and silicotungstic acid (SiWA) with or without silica. The polymer electrolyte membrane fuel cell (PEMFC) was developed using solution casting method. Infrared (IR) spectra revealed that the Keggin structure was insered in the PVA films. The thermal decomposition of the PVA/SSA/SiWA/SiO2 membranes showed good thermal stability up to 200°C. Water uptake ranged between 31% and 88%. The maximum conductivity has been found to be 6,72.10-3 S.cm-1 at room temperature for PVA/SSA/SiWA containing 10% of silica weight. The ion exchange capacity of this membrane was 1,75 mmol.g-1. The results showed that these membranes presented very promising performances for use in Proton Exchange Membrane Fuel Cells.

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Section: Water Uptake and Proton Conductivity Of The Membrane Pva/ssasupporting

confidence: 91%

Section: Water Uptake and Proton Conductivity Of The Membrane Pva/ssamentioning

confidence: 96%

Fabrication and Properties of Hybrid Membranes Based on Poly (Vinyl Alcohol), Sulfosuccinic Acid and Salts of Heteropolyacid with or without Silica for Fuel Cells Applications

Maarouf¹,

Alouane²,

Tazi³

et al. 2020

Adv. sci. technol. eng. syst. j.

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The Effect Zeolite Addition in Natural Rubber Polypropylene Composite on Mechanical, Structure, and Thermal Characteristics

Bukit¹,

Frida²

2014

MST

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This study was conducted to determine the effect of zeolite as filler on mechanical properties, and thermal structure blends of natural rubber and polypropylene (NR/PP). In this study, NR/PP/PP-g-MA blends was filled uncalcined zeolite and calcined zeolite at different weight percent of the 2, 4, and 6%. Samples were characterized to determine the tensile strength, fracture elongation and Young's modulus. Structure of the samples was investigated using XRD method and thermal characteristics were analyzed using DTA/TGA technique. The results obtained for tensile strength showed a significant influence with the addition zeolite of the NR/PP blends at 2% by weight of the composition (8 MPa) and decreased with increasing zeolite composition uncalcined zeolite or calcined zeolite. At 2% to 6% by weight of an increase in Young's modulus, for which uncalcined zeolite function more effectively than the calcined zeolite. On the other hand, the addition of uncalcined zeolite and calcined zeolite did not result in decreased fracture elongation. The XRD analysis zeolite indicate the existence of amorphous phase and crystalline mineral type mordenite (CaAl 2 Si 10 O 24 .7 H 2 O). In general, cristality of samples filled with calcined zeolite slightly higher than the uncalcined zeolite at the same amount and intercalation occurs between the zeolite matrix NR/PP. Thermal analysis showed that the samples are filled with calcined zeolite has a thermal resistance higher than the uncalcined zeolite, the melting point NR/PP 165.0 °C with the addition of 6 wt% zeolite melting point to 186.7 °C. AbstrakPengaruh Penambahan Zeolit pada Komposit Karet Alam Polipropilena terhadap Sifat Mekanik, Struktur dan Termal. Penelitian ini dilakukan untuk mengetahui pengaruh zeolit sebagai bahan pengisi terhadap sifat mekanik, struktur dan termal dari campuran karet alam dan polypropylene (NR/PP). Dalam penelitian ini, campuran NR/PP/PP-g-MA diisi dengan zeolit tanpa kalsinasi dan zeolit kalsinasi pada persen berat yang berbeda yakni 2, 4, dan 6%. Sampel dikarakterisasi untuk menentukan kekuatan tarik, perpanjangan putus dan modulus Young. Struktur sampel diteliti menggunakan metode XRD dan karakteristik termal dianalisis dengan menggunakan DTA/TGA. Hasil yang diperoleh untuk kekuatan tarik menunjukkan adanya pengaruh yang signifikan dengan penambahan zeolit pada campuran NR/PP pada komposisi 2% berat (8 MPa) dan terjadi penurunan dengan bertambahnya komposisi zeolit baik kalsinasi maupun tanpa kalsinasi. Pada 2% sampai 6% berat modulus Young terjadi peningkatan, untuk zeolit yang tidak dikalsinasi berfungsi lebih efektif dibandingkan dengan zeolit kalsinasi. Di sisi lain, penambahan zeolit kalsinasi dan tidak dikalsinasi menghasilkan penurunan perpanjangan putus. Analisis XRD dari zeolit menunjukkan adanya fase amorf dan kristal tipe mineral mordenite (CaAl 2 Si 10 O 24 .7 H 2 O). Secara umum, kristalitas dari sampel yang diisi dengan zeolit kalsinasi sedikit lebih tinggi dari pada zeolit tanpa kalsinasi pada jumlah yang sama dan terjadi ...

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Preparation of Sulfonated PVA-TMSP Membranes for Direct Methanol Fuel Cell

Cited by 2 publications

References 0 publications

Fabrication and Properties of Hybrid Membranes Based on Poly (Vinyl Alcohol), Sulfosuccinic Acid and Salts of Heteropolyacid with or without Silica for Fuel Cells Applications

Fabrication and Properties of Hybrid Membranes Based on Poly (Vinyl Alcohol), Sulfosuccinic Acid and Salts of Heteropolyacid with or without Silica for Fuel Cells Applications

The Effect Zeolite Addition in Natural Rubber Polypropylene Composite on Mechanical, Structure, and Thermal Characteristics

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