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Nafion is a brand name for a sulfonated tetrafluoroethylene based fluoropolymer - copolymer synthesized in 1962 by Dr. Donald J. Connolly at the DuPont Experimental Station in Wilmington Delaware (U.S. Patent 3,282,875). Additional work on the polymer family was performed in the late 1960s by Dr. Walther Grot of DuPont. [ 1]
A proton-exchange membrane, or polymer-electrolyte membrane ( PEM ), is a semipermeable membrane generally made from ionomers and designed to conduct protons while acting as an electronic insulator and reactant barrier, e.g. to oxygen and hydrogen gas. [ 1] This is their essential function when incorporated into a membrane electrode assembly ...
A flow battery, or redox flow battery (after reduction–oxidation ), is a type of electrochemical cell where chemical energy is provided by two chemical components dissolved in liquids that are pumped through the system on separate sides of a membrane. [ 2][ 3] Ion transfer inside the cell (accompanied by current flow through an external ...
Researchers at Penn State, working in cooperation with a scientist from Ion Power, Inc., have developed a microbial fuel cell that can turn wastewater and bacteria into hydrogen. According to Penn ...
An ion-exchange membrane is a semi-permeable membrane that transports certain dissolved ions, while blocking other ions or neutral molecules. [ 1] Ion-exchange membranes are therefore electrically conductive. They are often used in desalination and chemical recovery applications, moving ions from one solution to another with little passage of ...
The world’s largest energy storage facility ising next-generation sodium-ion batteries has begun operations in China.. The 100,000 kWh project in the Hubei province is capable of storing enough ...
The power density of the FeAc/Phen/ZIF-8-catalyst was found to be 0.75 W cm −2 at 0.6 V. This value is a significant improvement over the maximal 0.37 W cm −2 power density of previous M/N/C-catalysts and is much closer to matching the typical value of 1.0–1.2 W cm −2 for Pt-based catalysts with a Pt loading of 0.3 mg cm −2.
After cranking the heat on a pair of the batteries to 250+ degrees Celsius (482 degrees Fahrenheit) and keeping an eye on them with the aforementioned techniques, researchers witnessed one of the ...