A sulfonated polybenzophenone/polyimide copolymer as a novel proton exchange membrane

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 50082-50086 ◽  
Author(s):  
Takahiro Miyahara ◽  
Junpei Miyake ◽  
Soichi Matsuno ◽  
Masahiro Watanabe ◽  
Kenji Miyatake
Keyword(s):  
Fuel Cell ◽  
Block Copolymer ◽  
Proton Conductivity ◽  
Proton Exchange Membrane ◽  
Gas Permeability ◽  
Proton Exchange ◽  
High Proton Conductivity ◽  
High Proton ◽  
Exchange Membrane

A sulfonated polybenzophenone/polyimide block copolymer membrane exhibited high proton conductivity, good dimensional and mechanical stabilities, and low gas permeability, which are attractive for fuel cell applications.

Ba-MOFs with tetrazole-based acetic acids: unusual configuration, novel topology and high proton conductivity

2021 ◽  
Author(s):  
Jie Yang ◽  
Shunlin Zhang ◽  
Zhe Feng ◽  
Ying Cao ◽  
Dunru Zhu
Keyword(s):  
Proton Conductivity ◽  
Proton Exchange Membrane ◽  
Metal Organic Frameworks ◽  
Proton Exchange ◽  
High Proton Conductivity ◽  
Conductive Materials ◽  
High Proton ◽  
Metal Organic ◽  
Exchange Membrane ◽  
Acetic Acids

Metal-organic frameworks (MOFs) as proton conductive materials have attracted increasing attention due to their applications in proton-exchange membrane fuel cells. While the majority of the MOFs are based on transition...

Facile One-step Preparation of Mesoporous Siliceous phophsomolybdic acid for Proton Exchange Membrane

2021 ◽  
Vol 13 ◽  
Author(s):  
Hamid Ilbeygi
Keyword(s):  
Proton Conductivity ◽  
Proton Exchange Membrane ◽  
High Surface ◽  
Phosphomolybdic Acid ◽  
Pem Fuel Cells ◽  
Proton Exchange ◽  
Polymeric Surfactant ◽  
High Proton Conductivity ◽  
High Proton ◽  
Exchange Membrane

Background: Proton exchange membrane is art of PEM fuel cells, developing active materials with robust structure and high proton conductivity has attained huge attention in recent decade amongst researchers. Aims/objectives: Here we have developed a novel approach to prepare a siliceous mesoporous heteropoly acid with high stability in polar media and high proton conductivity to be utilized as proton exchange membrane. Methods: A highly stable mesoporous siliceous phosphomolybdic acid has been synthesized via a simple self-assembly between phosphomolybdic acid (PMA), the polymeric surfactant, and the silica precursor stabilized by KCl molecules as a proton conducting material for proton exchange membrane application. Results: As prepared siliceous mesoporous phosphomolybdic acids (mPMA-Si) show a high surface area with a highly crystalline structure, however the crystallinity reduced by increasing the silica content. Further analysis proved the Keggin structure remain intact in final materials. mPMA-8 Si shows the highest performance among all the materials studied with proton conductivity of 0.263 S.cm-1 at 70 oC. Conclusion: As prepared mPMA-xSi has shown a very high proton conductivity in a range of temperatures which make them a promising material for proton exchange membrane.

scholarly journals PEMBUATAN DAN KARAKTERISASI MEMBRAN KOMPOSIT KITOSAN-SODIUM ALGINAT TERFOSFORILASI SEBAGAI PROTON EXCHANGE MEMBRANE FUEL CELL (PEMFC)

2016 ◽  
Vol 1 (1) ◽  
pp. 14
Author(s):  
Siti Wafiroh ◽  
Suyanto Suyanto ◽  
Yuliana Yuliana
Keyword(s):  
Fuel Cell ◽  
Sodium Alginate ◽  
Proton Conductivity ◽  
Composite Membrane ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Methanol Permeability ◽  
Water Swelling ◽  
Exchange Membrane

AbstrakDi era globalisasi ini, kebutuhan bahan bakar fosil semakin meningkat dan ketersediannya semakin menipis. Oleh karena itu, dibutuhkan bahan bakar alternatif seperti Proton Exchange Membrane Fuel Cell (PEMFC). Tujuan dari penelitian ini adalah membuat dan mengkarakterisasi membran komposit kitosan-sodium alginat dari rumput laut coklat (Sargassum sp.) terfosforilasi sebagai Proton Exchange Membrane Fuel Cell (PEMFC). PEM dibuat dengan 4 variasi perbandingan konsentrasi antara kitosan dengan sodium alginat 8:0, 8:1, 8:2, dan 8:4 (b/b). Membran komposit kitosan-sodium alginat difosforilasi dengan STPP 2N. Karakterisasi PEM meliputi: uji tarik, swelling air, kapasitas penukar ion, FTIR, SEM, permeabilitas metanol, dan konduktivitas proton. Berdasarkan hasil analisis tersebut, membran yang optimal adalah perbandingan 8:1 (b/b) dengan nilai modulus young sebesar 0,0901 kN/cm2, swelling air sebesar 19,14 %, permeabilitas metanol sebesar 72,7 x 10-7, dan konduktivitas proton sebesar 4,7 x 10-5 S/cm. Membran komposit kitosan-sodium alginat terfosforilasi memiliki kemampuan yang cukup baik untuk bisa diaplikasikan sebagai membran polimer elektrolit dalam PEMFC. Kata kunci: kitosan, sodium alginat, terfosforilasi, PEMFC  AbstractIn this globalization era, the needs of fossil fuel certainly increases, but its providence decreases. Therefore, we need alternative fuels such as Proton Exchange Membrane Fuel Cell (PEMFC). The purpose of this study is preparationand characterization of phosphorylated chitosan-sodium alginate composite membrane from brown seaweed (Sargassum sp.) as Proton Exchange Membrane Fuel Cell (PEMFC). PEM is produced with 4 variations of concentration ratio between chitosan and sodium alginate 8:0, 8:1, 8:2, and 8:4 (w/w). Chitosan-sodium alginate composite membrane phosphorylated with 2 N STPP. The characterization of PEM include: tensile test, water swelling, ion exchange capacity, FTIR, SEM, methanol permeability, and proton conductivity. Based on the analysis result, the optimal membrane is ratio of 8:1 (w/w) with the value of Young’s modulus about 0.0901 kN/cm2, water swelling at 19.14%, methanol permeability about 72.7 x 10-7, and proton conductivity about 4.7 x 10-5 S/cm. The phosphorylated chitosan-sodium alginate composite membrane has good potentials for the application of the polymer electrolyte membrane in PEMFC. Keywords: chitosan, sodium alginate, phosphorylated, PEMFC

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