Synthesis and characterization of proton conducting polymer membranes for fuel cells

Smitha, B.; Sridhar, S.; Khan, Asad Ali

doi:10.1016/s0376-7388(03)00343-0

Cited by 238 publications

(106 citation statements)

References 8 publications

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“…Hydrophilicity in polymers can generally be achieved by introducing acid functionalities such as sulfonic acid, carboxylic acid, and phosphoric acid in polymer backbones. Among the acid candidates, sulfonic acid groups are by far most commonly employed [24][25][26][27][28][29]. In addition, due to their low pKa values (i.e., high acidity), sulfonic acid groups are most widely used in PEMs.…”

Section: Introductionmentioning

confidence: 99%

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Sulfonated hydrocarbon membranes for medium-temperature and low-humidity proton exchange membrane fuel cells (PEMFCs)

Park

Lee

Guiver

2011

Progress in Polymer Science

611

229

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Section: Introductionmentioning

confidence: 99%

“…In this review, both methods will be discussed and progress in PEM materials development will be detailed. In addition to sulfonic acid groups, other acid functional groups such as phophophonic acid [29][30][31] and sulfonamide [32,33] have been used to impart hydrophilicity in polymers. Nafion ® , manufactured by DuPont TM (see Fig.…”

Section: Introductionmentioning

confidence: 99%

Sulfonated hydrocarbon membranes for medium-temperature and low-humidity proton exchange membrane fuel cells (PEMFCs)

Park

Lee

Guiver

2011

Progress in Polymer Science

611

229

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“…Berbagai usaha telah dilakukan diantaranya pemakaian polimer alam (Mat and Liong, 2009;Ye et al, 2012), maupun sintetik (Smitha et al,2003;Iojoiu et al,2005. Polimer alam seperti kitosan dianggap cukup menjanjikan dalam aplikasi tersebut.…”

Section: Pendahuluanunclassified

“…Reaksi pembentukan basa schiff dengan beberapa modifikator telah dipublikasikan sebelumnya (Santos et al, 2005;Wiyarsi, 2008;Jiao et al,2011;Pramono et al, 2012 et al, 2000;Smitha et al, 2003;Iojoiu et al,2005). Material tersebut memilki stabilitas termal yang tinggi dan juga sifat mekaniknya yang cukup baik pula (Martins et al,2003), namun demikian modifikasi pada bahan tersebut perlu dilakukan agar menghasilkan material yang bermuatan, sehingga dapat digunakan sebagai membran penukar proton yang dapat diaplikasikan sebagai membran elektrolit.…”

Section: Pendahuluanunclassified

“…Material tersebut memilki stabilitas termal yang tinggi dan juga sifat mekaniknya yang cukup baik pula (Martins et al,2003), namun demikian modifikasi pada bahan tersebut perlu dilakukan agar menghasilkan material yang bermuatan, sehingga dapat digunakan sebagai membran penukar proton yang dapat diaplikasikan sebagai membran elektrolit. Salah satu cara yang dapat dilakukan adalah dengan sulfonasi (Smitha et al, 2003). Sulfonasi menghasilkan polimer bergugus sulfonat yang mampu berperan dalam pertukaran kation.…”

Section: Pendahuluanunclassified

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Composite of Chitosan Vanilin / Sulfonated Polystyrene as Polymer Electrolyte Membranes : Cationic Exchange Capacity, Swelling Degree and Thermal Properties

Pramono¹,

Purnawan²,

Hidayat³

et al. 2016

ALCHEMY J.Pen.Kim

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ABSTRAKPenelitian preparasi dan karakterisasi membran komposit elektrolit polistirena tersulfonasi (PST)/kitosan vanilin (KV) untuk mengetahui pengaruh komposisi PST dan KV terhadap sifat kimia dan fisika membran telah dilakukan. Polistirena dimodifikasi melalui reaksi sulfonasi menghasilkan PST, sedangkan modifikasi kitosan melalui pembentukan basa schift menghasilkan KV. Membran komposit dibuat dengan metode kasting dan dikarakterisasi gugus fungsi yang terkandung di dalamnya, sifat Kapasitas Tukar Kation (KTK), Derajat Pengembangan (DP), Thermogravimetric Analysis (TGA) dan morfologinya. Keberadaan puncak serapan imina pada data FTIR menunjukkan bahwa kitosan vanilin berhasil disintesis, demikian juga sulfonasi pada polistrirena muncul puncak serapan sulfonat. Hasil analisa KTK menunjukkan penambahan gugus sulfonat pada polistirena dan penambahan gugus fenolik pada kitosan meningkatkan nilai KTK. Semakin besar konsentrasi PST dan konsentrasi KV pada komposisi membran menyebabkan peningkatan nilai KTK. Sebaliknya, peningkatan konsentrasi PST pada komposisi membran menyebabkan penurunan nilai DP, sedangkan peningkatan konsentrasi KV meningkatkan nilai DP. Analisis termal menunjukkan bahwa degradasi termal membran terjadi pada tiga tahap yaitu tahap pertama pelepasan air, tahap kedua pemutusan gugus samping dan degradasi plasticizer, dan tahap ketiga yaitu pemutusan rantai utama kitosan dan polistirena. Kata kunci : kitosan vanilin, membran polimer elektrolit, polistirena tersulfonasi ABSTRACTResearch on the preparation and characterization of sulfonated polystyrene (PST)/chitosan vanillin (KV) composite as electrolyte membranes has been conducted in order to investigate the effect of PST and KV composition to its chemical and physical properties. Polystyrene was modified by sulfonation reaction to produces PST, meanwhile chitosan was modified by schift base reaction to produces KV. The composite membranes were prepared by casting method and were characterized in order to identify the functional groups contained in the composite, the cation exchange capacity (CEC), the Swelling Degree (SD), the thermal properties and the morphology. The peak of imine vibration in

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Polymer and Hybrid Materials: Electrochemistry and Applications

Xing

2009

Solid State Electrochemistry I

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Due to substantial practical interest in proton-exchange membrane fuel cells (PEMFCs) during the past few decades, significant improvements have been achieved in polymer and hybrid materials. Much of the research effort has centered on the development of composite membranes and new proton-conducting materials, aimed to improving their performance, durability, and cost. Attention has also been focused on new membranes operating under high-temperature/low-humidity conditions. This chapter presents a brief review on the motivation for novel proton-exchange membrane developments, together with details of recent progress and technology gaps.

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Synthesis and characterization of proton conducting polymer membranes for fuel cells

Cited by 238 publications

References 8 publications

Sulfonated hydrocarbon membranes for medium-temperature and low-humidity proton exchange membrane fuel cells (PEMFCs)

Sulfonated hydrocarbon membranes for medium-temperature and low-humidity proton exchange membrane fuel cells (PEMFCs)

Composite of Chitosan Vanilin / Sulfonated Polystyrene as Polymer Electrolyte Membranes : Cationic Exchange Capacity, Swelling Degree and Thermal Properties

Polymer and Hybrid Materials: Electrochemistry and Applications

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