Composite membranes based on highly sulfonated PEEK and PBI: Morphology characteristics and performance

Zhang, Haiqiu; Li, Xianfeng; Zhao, Chengji; Fu, Tiezhu; Shi, Yuhua; Na, Hui

doi:10.1016/j.memsci.2007.09.045

Cited by 185 publications

(88 citation statements)

References 44 publications

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“…Wycisk et al [415] studied the properties of PBI/sPOP membranes and found that the relative permeability of pure sPOP membranes is reduced from P r ¼ 0.56 down to P r ¼ 0.028 by adding 12 wt% of PBI. A similar effect has been found for PBI/sPEEK composite membranes, where the permeability of pure sPEEK is reduced by a factor 50 by adding 20 wt% of PBI [416].…”

Section: Acid Doped Pbi Membranessupporting

confidence: 77%

Membranes for Direct Alcohol Fuel Cells

Corti

2013

Direct Alcohol Fuel Cells

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This chapter is devoted to summarize and discuss the main properties of ionomeric membranes used in direct alcohol PEM fuel cells. Although Nafion is the proton exchange membrane commonly used in methanol and other direct alcohol fuel cells, other proton and alkaline membranes are being investigated in order to improve the efficiency of DAFC. The goals in the development of this critical component of DAFC are: low cost, long durability, low alcohol permeability and high electrical conductivity. The last two properties can be combined in a single parameter, the membrane selectivity that accounts for the ratio between the proton and alcohol transport through the membrane. This parameter can be compared to that measured for Nafion to define a relative selectivity, which is a primary parameter to evaluate the potentiality of a ionomer material to be used in alcohol feed fuel cells.The vast catalogue of polymeric materials reviewed here included Nafion composite with inorganic and organic fillers, and non-fluorinated proton conducting membranes such as sulfonated polyimides, poly(arylene ether)s, polysulfones, poly (vinyl alcohol), polystyrenes, and acid-doped polybenzimidazoles. Anionexchange membranes are also discussed because of the facile electro-oxidation of alcohols in alkaline media and because of the minimization of alcohol crossover in alkaline direct alcohol fuel cells.The performance of different types of membranes in direct alcohol fuel cells, mainly methanol, are summarized and discussed in order to identify the most promissory ones. The lack of correlation between the relative selectivity and fuel cell performance of the membranes indicates that the architecture of the three

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Section: Acid Doped Pbi Membranessupporting

confidence: 77%

Membranes for Direct Alcohol Fuel Cells

Corti

2013

Direct Alcohol Fuel Cells

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“…In literature, various studies are present concerning composite membranes based on S-PEEK and small molecules containing benzimidazole groups, which show as a main benefit the low methanol crossover [10,32,33]. Nevertheless, some drawbacks are present in this kind of blended membranes such as reduced water up-take and, particularly, inhomogeneity of the blend owing to the poor solubility of polybenzimidazole (PBI) [33].…”

Section: S-peek/pbi Hybrid Membranesmentioning

confidence: 99%

Sulfonated PEEK-based polymers in PEMFC and DMFC applications: A review

Iulianelli

Basile

2012

International Journal of Hydrogen Energy

221

152

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“…[52,53] Due to its ion exchange properties, SPEEK has been widely used as polymeric matrix for the IMS of MNPs. [5,48,54] Consequently, preparing SPEEK polymeric thin films (PTFs) by spin coating (SC) offers a novel type of polymeric support for IMS.…”

Section: Introductionmentioning

confidence: 99%

Intermatrix Synthesis as a rapid, inexpensive and reproducible methodology for the in situ functionalization of nanostructured surfaces with quantum dots

Bastos-Arrieta

Muñoz

Stenbock-Fermor

et al. 2016

Applied Surface Science

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Multiwall Carbon Nanotubes (MWCNTs) and Nanodiamonds (NDs). The synthetic route takes advantage of the ion exchange functionality of the reactive surfaces for the loading of the QDs precursor and consequent QDs appearance by precipitation. The benefits of such modified nanomaterials were studied using CdS-QDs@MWCNTs hybrid-nanomaterials.CdS-QDs@MWCNTs has been used as conducting filler for the preparation of electrochemical nanocomposite sensors, which present electrocatalytic properties. Finally,

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Composite membranes based on highly sulfonated PEEK and PBI: Morphology characteristics and performance

Cited by 185 publications

References 44 publications

Membranes for Direct Alcohol Fuel Cells

Membranes for Direct Alcohol Fuel Cells

Sulfonated PEEK-based polymers in PEMFC and DMFC applications: A review

Intermatrix Synthesis as a rapid, inexpensive and reproducible methodology for the in situ functionalization of nanostructured surfaces with quantum dots

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