Influence of metal nanoparticles in proton conductivity and water absorption of polymeric membranes for fuel cells

Benavides, R.; Oenning, L.W.; Paula, M.M.S.; Silva, Luciano da

doi:10.1016/j.ijhydene.2015.07.116

Cited by 4 publications

(3 citation statements)

References 20 publications

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“…As far as we know, MOFs materials, which can promote the proton conductivity of composite membranes, usually possessed structural features such as continuous hydrogen bonding chains that can provide a proton transfer path, 48 hydrophilic groups or molecules that can absorb water molecules, 49 or acidic groups that can provide freedom proton. 50 For compounds 1–3 , their hydrogen bonds and hydrophilic molecules were the same because of the same structure.…”

Section: Resultsmentioning

confidence: 99%

Three isostructural MOFs based on different metal cations: proton conductivities and SC–SC transformation leading to magnetic changes

Zou

et al. 2023

CrystEngComm

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Section: Resultsmentioning

confidence: 99%

Three isostructural MOFs based on different metal cations: proton conductivities and SC–SC transformation leading to magnetic changes

Zou

et al. 2023

CrystEngComm

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“…In addition, densely packed hydrogen bonding among the water molecules and hydroxyl groups of catechols enhances the proton conductivity. Benavides et al suggested that the incorporation of NPs enhances the water uptake of films and the change in water content may increase the proton conductivity . This is one reason for the higher proton conductivity of the Ag NP-loaded PVCa- b -PSt film than the PVCa- b -PSt film.…”

Section: Resultsmentioning

confidence: 99%

Proton Conductivities of Lamellae-Forming Bioinspired Block Copolymer Thin Films Containing Silver Nanoparticles

et al. 2016

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Size-controlled metal nanoparticles (NPs) were spontaneously formed when the amphiphilic diblock copolymers consisting of poly(vinyl catechol) and polystyrene (PVCa-b-PSt) were used as reductants and templates for NPs. In the present study, the proton conductivity of well-aligned lamellae structured PVCa-b-PSt films with Ag NPs was evaluated. We found that the proton conductivity of PVCa-b-PSt film was increased 10-fold by the addition of Ag NPs into the proton conduction channels filled with catechol moieties. In addition, the effect of humidity and the origin of proton conductivity enhancement was investigated.

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“…Because of the high-water absorption in the membrane, mechanical stability and water transfer are two key parameters in PEMFCs. Developing proton transfer systems with low water content or no water is the major challenge in the fabrication of new membranes [64,65]. The innovation of ion exchange membranes is polymers that are based on perfluorinated hydrocarbons (Nafion).…”

Section: Ion-exchange Membrane Features and Drawbacksmentioning

confidence: 99%

Proton Exchange Membrane Fuel Cells: Focused on Organic-Inorganic Nanocomposite Membranes

Jalali,

Seyedghayem,

Hooriabad Saboor

et al. 2023

Period. Polytech. Chem. Eng.

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The application of organic-inorganic nanocomposite membranes allows for a synergy between the desirable thermal and mechanical properties of inorganic materials with the reactivity, dielectric properties, durability, flexibility, and processability of the polymeric materials. Proton exchange membrane fuel cells (PEMFCs) suffer from some problems including water content management, carbon monoxide poisoning, hydrogen reformate, and fuel crossover through the membrane. Herein, specific solutions have been proposed to the above-mentioned problems using organ-inorganic nanocomposites. These solutions include doping proton conductive inorganic nano-particles in the proton exchange membrane, preparing nanocomposites via the sol-gel method, covalence bond of inorganic compounds with the polymer structure, and acid-based proton exchange nanocomposite membranes. Furthermore, hydrogen production with low carbon monoxide content using the ethanol steam reforming method, as well as the effect of CO in the hydrogen feed of PEMFC are explained and discussed. Finally, desirable conditions for achieving the maximum power density in exchange membrane cells (EMFCs) are discussed.

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Influence of metal nanoparticles in proton conductivity and water absorption of polymeric membranes for fuel cells

Cited by 4 publications

References 20 publications

Three isostructural MOFs based on different metal cations: proton conductivities and SC–SC transformation leading to magnetic changes

Three isostructural MOFs based on different metal cations: proton conductivities and SC–SC transformation leading to magnetic changes

Proton Conductivities of Lamellae-Forming Bioinspired Block Copolymer Thin Films Containing Silver Nanoparticles

Proton Exchange Membrane Fuel Cells: Focused on Organic-Inorganic Nanocomposite Membranes

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