Reference of 1116-77-4, Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction. 1116-77-4, Name is 4,4-Diethoxy-N,N-dimethyl-1-butanamine, SMILES is CN(C)CCCC(OCC)OCC, belongs to ethers-buliding-blocks compound. In a article, author is Yang, Jiayu, introduce new discover of the category.
Fabrication of PBI/SPOSS hybrid high-temperature proton exchange membranes using SPAEK as compatibilizer
Because of the harsh operating circumstances of high temperature over 100 degrees C and strong acidity, it is of great significance to explore some new methods on the developments of high-performance membrane materials using in high-temperature proton exchange membrane fuel cells (HT-PEMFCs). In current work, with the assistance of newly designed sulfonated poly (aryl ether ketone) (SPAEK) compatibilizer, some hydrophilic and acidophilic polyhedral-oligosilsesquioxane nanoparticles bearing sulfuric acid groups (SPOSS) were successfully incorporated into a soluble arylether-type polybenzimidazole (Ph-PBI) matrix via an in situ sol-gel process to obtain a new family of hybrid membranes with an improved overall performance. As a result, these hybrid membranes exhibited enhanced acid absorption ability and doping levels at 120 degrees C, improved acid retention ability and attractive mechanical-dimensional stability. More importantly, the proton conductivity of a phosphoric acid doped hybrid membrane reached 126 mS cm(-1) at 200 degrees C. This membrane was also suitable for membrane electrode assemblies (MEAs), and a maximum power density of 300 mW cm(-2) could be achieved at 160 degrees C without humidity.
Reference of 1116-77-4, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 1116-77-4.