Poly(ether imide) nanofibrous web composite membrane with SiO2/heteropolyacid ionomer for durable and high-temperature polymer electrolyte membrane (PEM) fuel cells
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Industrial and Engineering Chemistry"
DOI: 10.1016/j.jiec.2019.01.034
Abstract: Abstract Poly(ether imide) (PEI) membranes for polymer electrolyte membrane fuel cells (PEMFCs) are prepared by the electrospinning method. This approach produces a membrane with a high porosity and surface area that is suitable for accommodating… read more here.
Keywords: composite membrane; poly ether; ionomer; membrane ... See more keywords
Evaluating fluoride uptake of dentin from different restorative materials at various time intervals - In vitro study.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of oral biology and craniofacial research"
DOI: 10.1016/j.jobcr.2021.12.005
Abstract: Background Glass ionomer cement is very popular in clinical practice due to their antibacterial and cariostatic properties, which is totally dependant on the amount of fluoride release and uptake by dentine. The short-term and long-term… read more here.
Keywords: uptake dentine; fluoride uptake; dentin different; restorative materials ... See more keywords
A comb-like ionomer based on poly(2,6-dimethyl-1,4-phenylene oxide) for the use as anodic binder in anion-exchange membrane direct methanol fuel cells
Sign Up to like & getrecommendations! Published in 2017 at "Solid State Ionics"
DOI: 10.1016/j.ssi.2016.12.036
Abstract: Abstract Ionomeric binders are crucial to a proper use of fuel cells. In anion-exchange membrane direct methanol fuel cells (AEM-DMFCs) the requirements for the ionomeric binders are anionic conductivity, chemical and thermal stability and facilitation… read more here.
Keywords: fuel cells; comb like; like ionomer; ionomer ... See more keywords
Humidity-Dependent Hydration and Proton Conductivity of PFSA Ionomer Thin Films at Fuel-Cell-Relevant Temperatures: Effect of Ionomer Equivalent Weight and Side-Chain Characteristics.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c12667
Abstract: Studies on the hydration properties, proton conductivity, and water content of perfluorinated ionomer thin films at temperatures relevant to fuel cell operation temperatures (around 80 °C) and the effect of ionomer chemistry are scarce. In… read more here.
Keywords: proton conductivity; ionomer; water; equivalent weight ... See more keywords
Interfacial Distribution of Nafion Ionomer Thin Films on Nitrogen-Modified Carbon Surfaces.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c14574
Abstract: Chemically modified carbon supports for the cathode catalyst layers of polymer electrolyte fuel cells (PEFCs) show considerable promise for boosting the oxygen reduction reaction. This study evaluated the ionomer distribution of Nafion ionomer thin films… read more here.
Keywords: carbon; ionomer; thin films; distribution nafion ... See more keywords
Investigation of the Microstructure and Rheology of Iridium Oxide Catalyst Inks for Low-Temperature Polymer Electrolyte Membrane Water Electrolyzers.
Sign Up to like & getrecommendations! Published in 2019 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.9b14415
Abstract: We present an investigation of the structure and rheological behavior of catalyst inks for low-temperature polymer electrolyte membrane water electrolyzers (PEMWE). The ink consists of iridium oxide (IrO2) catalyst particles and Nafion ionomer dispersed in… read more here.
Keywords: water; catalyst inks; rheology; inks low ... See more keywords
Rapid and Direct Perfluorooctanoic Acid Sensing with Selective Ionomer Coatings on Screen-Printed Electrodes under Environmentally Relevant Concentrations
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.1c05847
Abstract: Per- and polyfluoroalkyl substances (PFASs) pose a significant health threat to humans at trace levels. Because of its ubiquity across the globe, there have been intense efforts to rapidly quantify PFASs in the environment while… read more here.
Keywords: rapid direct; ionomer; perfluorooctanoic acid; direct perfluorooctanoic ... See more keywords
High performance anion exchange ionomer for anion exchange membrane fuel cells
Sign Up to like & getrecommendations! Published in 2017 at "RSC Advances"
DOI: 10.1039/c7ra01980g
Abstract: The anion exchange ionomer incorporated into the electrodes of an anion exchange membrane fuel cell (AEMFC) enhances anion transport in the catalyst layer of the electrode, and thus improves performance and durability of the AEMFC.… read more here.
Keywords: anion; anion exchange; ionomer; exchange ionomer ... See more keywords
Cross-correlated humidity-dependent structural evolution of Nafion thin films confined on a platinum substrate.
Sign Up to like & getrecommendations! Published in 2020 at "Soft matter"
DOI: 10.1039/c9sm01731c
Abstract: Nanometer thin films of Nafion ionomer interfaced with platinum form the functional electrodes in many electrochemical devices including fuel cells and electrolyzers. To impart facile proton conduction in a Nafion ionomer, sufficient hydration of the… read more here.
Keywords: thin films; nafion; evolution; water ... See more keywords
Elucidating the Role of Ionomer in the Performance of Platinum Group Metal-free Catalyst Layer via in situ Electrochemical Diagnostics
Sign Up to like & getrecommendations! Published in 2020 at "Journal of The Electrochemical Society"
DOI: 10.1149/1945-7111/ab7aa1
Abstract: The ionomer content in platinum group metal (PGM)-free polymer electrolyte fuel cell (PEFC) cathode catalyst layer (CCL) plays an important role in the electrode gas transport properties, proton conductivity, and hence, membrane electrode assembly (MEA)… read more here.
Keywords: ionomer; catalyst layer; platinum group; performance ... See more keywords
Vibrational Spectroscopic Monitoring of the Gelation Transition in Nafion Ionomer Dispersions
Sign Up to like & getrecommendations! Published in 2020 at "Applied Spectroscopy"
DOI: 10.1177/0003702820949129
Abstract: Infrared and Raman spectroscopy techniques were applied to investigate the drying and aggregation behavior of Nafion ionomer particles dispersed in aqueous solution. Gravimetric measurements aided the identification of gel-phase development within a series of time-resolved… read more here.
Keywords: gelation; microscopy; ionomer; spectroscopy ... See more keywords