Recent advances in proton exchange membranes for fuel cell applications

Zhang, Liwei; Chae, So-Ryong; Hendren, Zachary; Park, Jin-Soo; Wiesner, Mark R.

doi:10.1016/j.cej.2012.07.103

Cited by 163 publications

(88 citation statements)

References 74 publications

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“…Perfluorosulfonic acid (PFSA) ionomers, such as Nafion TM (DuPont), are most commonly used for this purpose. [1][2][3] However, PFSA membranes exhibit some drawbacks. In addition to being rather expensive, [4] they require a delicate humidity control for reliable and efficient operation.…”

Section: Introductionmentioning

confidence: 99%

Proton Conduction in a Single Crystal of a Phosphonato‐Sulfonate‐Based Coordination Polymer: Mechanistic Insight

et al. 2020

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The proton conduction properties of a phosphonato‐sulfonate‐based coordination polymer are studied by impedance spectroscopy using a single crystal specimen. Two distinct conduction mechanisms are identified. Water‐mediated conductance along the crystal surface occurs by mass transport, as evidenced by a high activation energy (0.54 eV). In addition, intrinsic conduction by proton ′hopping′ through the interior of the crystal with a low activation energy (0.31 eV) is observed. This latter conduction is anisotropic with respect to the crystal structure and seems to occur through a channel along the c axis of the orthorhombic crystal. Proton conduction is assumed to be mediated by sulfonate groups and non‐coordinating water molecules that are part of the crystal structure.

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Section: Introductionmentioning

confidence: 99%

Proton Conduction in a Single Crystal of a Phosphonato‐Sulfonate‐Based Coordination Polymer: Mechanistic Insight

et al. 2020

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“…A vast variety of polymers have been studied as alternative membranes for fuel cells [4], in some of these membranes PFSA polymers were modified and improved to obtain better qualities [5] but most of studied alternative membranes are aromatic polymers and copolymers with different chemical structures. Some of the most widely used are: poly(ether ketone)s [6,7], poly(ether sulfone)s [8,9], polyimides [3,10], polybenzimidazoles [11], styrenic polymers [12], poly(phosphazene)s [13], poly(phenyl quinoxaline) [14] and so on.…”

Section: Introductionmentioning

confidence: 99%

Proton exchange membranes with microphase separated structure from dual electrospun poly(ether ketone) mats: Producing ionic paths in a hydrophobic matrix

Oroujzadeh

Mehdipour‐Ataei

Esfandeh

2015

Chemical Engineering Journal

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“…[1][2][3] These fuel cells can be defined as an electrochemical device that continuously converts chemical energy into electric energy as long as fuel and oxidant are supplied. The main components of PEMFC structure is bipolar plate and membrane.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of stainless steel composites with titanium carbonitride consolidated by spark plasma sintering

Allabergenov

Tursunkulov

Abidov

et al. 2015

Journal of Composite Materials

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In this paper, stainless steel-titanium carbonitride-based composites were fabricated and analyzed to utilize for bipolar plate in fuel cells. In order to study the size effect of titanium carbonitride on the mechanical and corrosion resistance properties of the composites, micro and nanosize titanium carbonitride powders were used. Stainless steel-carbonitride composites were prepared by spark plasma sintering and subsequently annealed at different temperatures up to 1100 C to improve the morphological and mechanical properties. Various properties of the obtained samples were compared before and after annealing. It was shown that after heat treatment, the mechanical properties of the stainless steelcarbonitride composites improved due to the diffusion of titanium carbonitride particles into stainless steel. Addition of microsized titanium carbonitride powders was found to be effective to improve the mechanical properties, such as microhardness and compressive strength, of the composite. However, addition of nanosized titanium carbonitride powders led to an increase of corrosion resistivity of the composite. Physical properties, such as thermal and chemical stability of the obtained composite samples were investigated by microhardness tester, potentiostat, field emissionscanning electron microscope, EDX and X-ray diffraction.

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Recent advances in proton exchange membranes for fuel cell applications

Cited by 163 publications

References 74 publications

Proton Conduction in a Single Crystal of a Phosphonato‐Sulfonate‐Based Coordination Polymer: Mechanistic Insight

Proton Conduction in a Single Crystal of a Phosphonato‐Sulfonate‐Based Coordination Polymer: Mechanistic Insight

Proton exchange membranes with microphase separated structure from dual electrospun poly(ether ketone) mats: Producing ionic paths in a hydrophobic matrix

Mechanical properties of stainless steel composites with titanium carbonitride consolidated by spark plasma sintering

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