Preparation of Nafion/Pt-containing TiO2/graphene oxide composite membranes for self-humidifying proton exchange membrane fuel cell

Yang, Haoran; Lee, W.H.; Choi, Byung-Uk; Kim, W.J.

doi:10.1016/j.memsci.2015.12.021

Cited by 45 publications

(20 citation statements)

References 33 publications

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“…Yang et al [183] fabricated a composite membrane with platinum deposited on titania, which is then incorporated with graphene oxide into a Nafion polymer matrix. The composite membranes displayed a better IEC than recast Nafion, with increased until 20% GO is reached, where the IEC began to decrease beyond that.…”

Section: Carbon Nanomaterials Fillersmentioning

confidence: 99%

“…summarises hydrogen PEM performance of composite polymer electrolyte membrane described in this review. [183] 324 0 Nafion/GO/Phosphotungstic acid [184] 841 80 20 Nafion/Phosphotungstic acid [202] 220 -PBI [169] PBI/SiO 2 [169] 200240 165165 -PBI/GO [190] 388 0 PBI/SGO [191] 600 0 SulfonatedPolysulfone [160] 160 85 -SPolysulfone/titanium oxide [160] 240 85 -SPEEK [164] 179 -SPEEK/GO [188] 378 80 30 SPEEK/silica [164] 246 -SPI/ionic liquid [210] 100 0 SPI/demaTfO [208] 100 80 0…”

Section: Acids and Ionic Liquids Fillersmentioning

confidence: 99%

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Composite Polymers Development and Application for Polymer Electrolyte Membrane Technologies—A Review

et al. 2020

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Nafion membranes are still the dominating material used in the polymer electrolyte membrane (PEM) technologies. They are widely used in several applications thanks to their excellent properties: high proton conductivity and high chemical stability in both oxidation and reduction environment. However, they have several technical challenges: reactants permeability, which results in reduced performance, dependence on water content to perform preventing the operation at higher temperatures or low humidity levels, and chemical degradation. This paper reviews novel composite membranes that have been developed for PEM applications, including direct methanol fuel cells (DMFCs), hydrogen PEM fuel cells (PEMFCs), and water electrolysers (PEMWEs), aiming at overcoming the drawbacks of the commercial Nafion membranes. It provides a broad overview of the Nafion-based membranes, with organic and inorganic fillers, and non-fluorinated membranes available in the literature for which various main properties (proton conductivity, crossover, maximum power density, and thermal stability) are reported. The studies on composite membranes demonstrate that they are suitable for PEM applications and can potentially compete with Nafion membranes in terms of performance and lifetime.

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Section: Carbon Nanomaterials Fillersmentioning

confidence: 99%

Section: Acids and Ionic Liquids Fillersmentioning

confidence: 99%

Composite Polymers Development and Application for Polymer Electrolyte Membrane Technologies—A Review

et al. 2020

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“…These features endow GO with great potential as a nanofiller in PEMs for PEMFCs applications. Indeed, GO has been successfully incorporated into Nafion, either alone or coupled with other active components with the main objective to boost proton transport [26][27][28]. However, in order to really be efficient, proper surface chemical functionalization must be performed to enhance the number of acid/hydrophilic groups, thus providing additional continuous pathways for facile proton transport [29].…”

Section: Introductionmentioning

confidence: 99%

Titanium Dioxide Grafted on Graphene Oxide: Hybrid Nanofiller for Effective and Low-Cost Proton Exchange Membranes

et al. 2020

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A nanostructured hybrid material consisting of TiO2 nanoparticles grown and stabilized on graphene oxide (GO) platelets, was synthesized and tested as nanofiller in a polymeric matrix of sulfonated polysulfone (sPSU) for the preparation of new and low-cost nanocomposite electrolytes for proton exchange membrane fuel cell (PEMFC) applications. GO-TiO2 hybrid material combines the nanoscale structure, large interfacial area, and mechanical features of a 2D, layered material, and the hygroscopicity properties of ceramic oxides, able to maintain a suitable hydration of the membrane under harsh fuel cell operative conditions. GO-TiO2 was synthetized through a new, simple, one-pot hydrothermal procedure, while nanocomposite membranes were prepared by casting using different filler loadings. Both material and membranes were investigated by a combination of XRD, Raman, FTIR, thermo-mechanical analysis (TGA and Dynamic Mechanical Analysis) and SEM microscopy, while extensive studies on the proton transport properties were carried out by Electrochemical Impedance Spectroscopy (EIS) measurements and pulse field gradient (PFG) NMR spectroscopy. The addition of GO-TiO2 to the sPSU produced a highly stable network, with an increasing of the storage modulus three-fold higher than the filler-free sPSU membrane. Moreover, the composite membrane with 3 wt.% of filler content demonstrated very high water-retention capacity at high temperatures as well as a remarkable proton mobility, especially in very low relative humidity conditions, marking a step ahead of the state of the art in PEMs. This suggests that an architecture between polymer and filler was created with interconnected routes for an efficient proton transport.

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“…Other challenges of Nafion are the decrease of proton conductivity in high temperature and high cost compared with similarly prepared membranes . Up to now, extensive research has been conducted to find an appropriate alternative for Nafion including sulfonation of aromatic hydrocarbon base polymers, the modification of Nafion type materials, blending polymers, and incorporation of different inorganic fillers into fluorinated and nonfluorinated polymeric matrixes such as titanium dioxide, iron titanate, zirconium phosphate, and zeolites . Recently, a composite blend membrane based on a combination of sulfonated polyethersulfone and sulfonated poly (phthalazinone ether ketone) and the optimum percentage of sulfonated SiO 2 was prepared in our group .…”

Section: Introductionmentioning

confidence: 99%

Enhanced properties of SPEEK with incorporating of PFSA and barium strontium titanate nanoparticles for application in DMFCs

et al. 2019

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Summary Novel blend nanocomposite proton‐exchange membranes were prepared using sulfonated poly (ether ether ketone) (SPEEK), perfluorosulfonic acid (PFSA), and Ba0.9Sr0.1TiO3 (BST) doped‐perovskite nanoparticles. The membranes were evaluated by attenuated total reflection, X‐ray diffraction spectroscopy, water uptake, proton conductivity, methanol permeability, and direct methanol fuel cell test. The effect of two additives, PFSA and BST, were investigated. Results indicated that both proton conductivity and methanol barrier of the blend nanocomposite membranes improved compared with pristine SPEEK and the as‐prepared blend membranes. The methanol permeability and the proton conductivity of the blend membrane containing 6 wt% BST obtained 3.56 × 10−7 cm2 s−1 (at 25 °C) and 0.110 S cm−1 (at 80 °C), respectively. The power density value for the optimum blend nanocomposite membrane (15 wt% PFSA and 6 wt% BST) (54.89 mW cm‐2) was higher than that of pristine SPEEK (31.34 mW cm‐2) and SPF15 blend membrane (36.12 mW cm‐2).

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Preparation of Nafion/Pt-containing TiO2/graphene oxide composite membranes for self-humidifying proton exchange membrane fuel cell

Cited by 45 publications

References 33 publications

Composite Polymers Development and Application for Polymer Electrolyte Membrane Technologies—A Review

Composite Polymers Development and Application for Polymer Electrolyte Membrane Technologies—A Review

Titanium Dioxide Grafted on Graphene Oxide: Hybrid Nanofiller for Effective and Low-Cost Proton Exchange Membranes

Enhanced properties of SPEEK with incorporating of PFSA and barium strontium titanate nanoparticles for application in DMFCs

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