Sulfonated polybenzimidazole/zirconium phosphate composite membranes for high temperature applications

Qian, Wei; Shang, Yu; Fang, Mou; Wang, Shubo; Xie, Xiang; Wang, Jinhai; Wang, Wenxiao; Du, Jinyan; Wang, Yaowu; Mao, Zongqiang

doi:10.1016/j.ijhydene.2012.05.076

Cited by 47 publications

(17 citation statements)

References 28 publications

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“…This result shows that Fe 2 TiO 5 nanoparticles have better hydrophilicity properties compared with TiO 2 nanoparticles. The proton conductivity of PFT 4 nanocomposite membranes has an intense increase compared with Nafion nanocomposite membrane [33][34][35] and other PBI-based nanocomposite membrane [36][37][38][39][40][41]. Table 1 shows a comparison between the proton conductivity of PFT 4 nanocomposite membranes and the other works.…”

Section: Ft-ir Atr Spectramentioning

confidence: 99%

Novel nanocomposite membranes based on polybenzimidazole and Fe2TiO5 nanoparticles for proton exchange membrane fuel cells

Shabanikia

Javanbakht

Amoli

et al. 2015

Ionics

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In this work, Fe 2 TiO 5 nanoparticles were used for improving the proton conductivity, and water and acid uptake of polybenzimidazole (PBI)-based proton exchange membranes. The nanocomposite membranes have been prepared using different amounts of Fe 2 TiO 5 nanoparticles and dispersed into a PBI membrane with the solution-casting method. The prepared membranes were then physico-chemically and electrochemically characterized for use as electrolytes in hightemperature PEMFCs. The PBI/Fe 2 TiO 5 membranes (PFT) showed a higher acid uptake and proton conductivity compared with the pure PBI membranes. The highest acid uptake (156 %) and proton conductivity (78 mS/cm at 180°C) were observed for the PBI nanocomposite membranes containing 4 wt% of Fe 2 TiO 5 nanoparticles (PFT 4 ). The PFT 4 composite membrane showed 380 mW/cm 2 power density and 760 mA/ cm 2 current density in 0.5 V at 180°C at dry condition. The above results indicated that the PFT 4 nanocomposite membranes could be utilized as proton exchange membranes for high-temperature fuel cells.

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Section: Ft-ir Atr Spectramentioning

confidence: 99%

Novel nanocomposite membranes based on polybenzimidazole and Fe2TiO5 nanoparticles for proton exchange membrane fuel cells

Shabanikia

Javanbakht

Amoli

et al. 2015

Ionics

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show abstract

“…This finding could be due to the higher acid doping levels achieved in these membranes. Table.1 shows a comparison between the proton conductivity of new nanocomposite membranes (PSC 4 and PSC 8) and the other works [35][36][37][38][39][40].…”

Section: Acid Uptake and Proton Conductivity Of Psc X Nanocomposite Mmentioning

confidence: 99%

Polybenzimidazole/strontium cerate nanocomposites with enhanced proton conductivity for proton exchange membrane fuel cells operating at high temperature

Shabanikia

Javanbakht

Amoli

et al. 2015

Electrochimica Acta

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“…The compass of proton conductivity depending upon acid doping level spans from 0.1 to 0.25 S cm −1 at 180 C. 26 However, still proton conductivity is not fit for commercial HT-PEMFCs. For instance, Qian et al 36 achieved the increased conductivity of 0.08 S cm −1 at 180 C after incorporation of zirconium phosphate in sPBI matrix. But, basic imidazole groups of PBI polymer can neutralize sulfonic acid moieties present in the structure of the product.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of sulfonated polybenzimidazole/sulfonated imidized graphene oxide hybrid membranes for high temperature proton exchange membrane fuel cells

Imran

et al. 2019

J of Applied Polymer Sci

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The sulfonated polybenzimidazole (sPBI)/sulfonated imidized graphene oxide (SIGO) was evaluated to be a potential candidate for high temperature proton exchange membranes fuel cells (HT-PEMFCs). Multifunctionalized covalently bonded SIGO is incorporated in sPBI matrix to resolve the drawbacks such as low proton conductivity, poor water uptake, and ion-exchange capacity (IEC) of sPBI polymer, synthesized by direct polycondensation in phosphoric acid for the application of proton exchange membranes. Strong hydrogen bonding among multifunctional groups established a neighborhood of interconnected hydrophobic graphene sheets and organic polymer chains. It provides hydrophobic-hydrophilic phase separation and facile proton hopping architecture. The optimized sPBI/SIGO (15 wt %) revealed 2.45 meq g −1 IEC; 5.81 mS cm −1 proton conductivity [120 C and 10% relative humidity (RH)] and 2.45% bound water content. The maximum power density of the sPBI/SIGO-15 membrane was 0.40 W cm −2 at 160 C (5% RH) and ambient pressure with stoichiometric feed of H 2 /air. This recommends that sPBI/SIGO composite membranes are compatible candidate for HT-PEMFCs.

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Sulfonated polybenzimidazole/zirconium phosphate composite membranes for high temperature applications

Cited by 47 publications

References 28 publications

Novel nanocomposite membranes based on polybenzimidazole and Fe2TiO5 nanoparticles for proton exchange membrane fuel cells

Novel nanocomposite membranes based on polybenzimidazole and Fe2TiO5 nanoparticles for proton exchange membrane fuel cells

Polybenzimidazole/strontium cerate nanocomposites with enhanced proton conductivity for proton exchange membrane fuel cells operating at high temperature

Fabrication and characterization of sulfonated polybenzimidazole/sulfonated imidized graphene oxide hybrid membranes for high temperature proton exchange membrane fuel cells

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