Topic
Nafion
About: Nafion is a research topic. Over the lifetime, 9110 publications have been published within this topic receiving 320865 citations.
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TL;DR: A series of new covalent organic/inorganic hybrid proton-conductive membranes, each with a semi-interpenetrating polymer network (semi-IPN), for direct methanol fuel cell (DMFC) applications is prepared through the following sequence: (i) copolymerization of impregnated styrene (St), p -vinylbenzyl chloride (VBC) and divinylbenzene (DVB).
87 citations
TL;DR: Proton transfer and local structures in 3M and Nafion membranes are investigated in this article by both standard nonreactive molecular dynamics and the self-consistent iterative mu....
Abstract: Proton transfer and local structures in 3M (EW 825) and Nafion (EW 890) membranes are investigated in this study by both standard nonreactive molecular dynamics and the self-consistent iterative mu...
87 citations
TL;DR: In this paper, a dip-coated polymeric antifogging and frost-resisting films capable of conveniently healing scratches and cuts are fabricated by the dipcoating technique from a solution of hydrogen-bonded polyvinyl alcohol (PVA) and Nafion complexes.
Abstract: Highly transparent polymeric antifogging and frost-resisting films capable of conveniently healing scratches and cuts are fabricated by the dip-coating technique from a solution of hydrogen-bonded poly(vinyl alcohol) (PVA) and Nafion complexes (denoted as PVA–Nafion), and then the as-prepared PVA–Nafion films are soaked in an aqueous NaOH solution to induce the formation of PVA crystallites. The dip-coated PVA–Nafion films can be deposited on plastic substrates such as poly(ethylene terephthalate) and polycarbonate eyeglasses and are sufficiently flexible to endure repeated bending–unbending treatments. The PVA crystallites act as physical cross-linkers and significantly improve the stability of the PVA–Nafion antifogging films in water. Nafion has a hydrogen-bonding interaction with PVA that further improves the stability of the PVA–Nafion films. The excellent antifogging and frost-resisting capabilities of the PVA–Nafion films even under aggressive fogging and frosting conditions originate from the rema...
87 citations
TL;DR: In this paper, the authors investigated the charge and discharge characteristics of polyaniline (PAn)-Nafion®-PAn composite films used as rechargeable batteries and found that cells with LiClO4 in propylene carbonate as electrolyte showed the highest capacity.
Abstract: The charge-discharge characteristics of polyaniline (PAn)-Nafion®-PAn composite films used as rechargeable batteries were investigated. The batteries were formed chemically by sandwiching Nafion® between two thin layers of PAn-Nafion® composite in equilibrium with various electrolytes. It was found that cells with LiClO4 in propylene carbonate as electrolyte showed the highest capacity. The charge and discharge performance of the battery was almost independent of the choice of anions but was significantly affected by cation size. This may indicate that the insertion or removal of charge-compensating electrolyte cations from the composite layer was responsible for the redox of PAn during the charge and discharge cycles.
87 citations
TL;DR: In this article, a solution of sulfonated polysulfone (PSS) of 1.07 H + /kg gives viscous suspension allowing the ''filled'' material to be shaped in thin films.
87 citations