Chemistry can be defined as the study of matter and the changes it undergoes. You’ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology. 73-32-5, Name is H-Ile-OH, molecular formula is , belongs to amides-buliding-blocks compound. In a document, author is Xie, Quanling, Recommanded Product: 73-32-5.
Notable Reactivity of Acetonitrile Towards Li2O2/LiO2 Probed by NAP XPS During Li-O-2 Battery Discharge
One of the key factors responsible for the poor cycleability of Li-O-2 batteries is a formation of byproducts from irreversible reactions between electrolyte and discharge product Li2O2 and/or intermediate LiO2. Among many solvents that are used as electrolyte component for Li-O-2 batteries, acetonitrile (MeCN) is believed to be relatively stable towards oxidation. Using near ambient pressure X-ray photoemission spectroscopy (NAP XPS), we characterized the reactivity of MeCN in the Li-O-2 battery. For this purpose, we designed the model electrochemical cell assembled with solid electrolyte. We discharged it first in O-2 and then exposed to MeCN vapor. Further, the discharge was carried out in O-2 + MeCN mixture. We have demonstrated that being in contact with Li-O-2 discharge products, MeCN oxidizes. This yields species that are weakly bonded to the surface and can be easily desorbed. That’s why they cannot be detected by the conventional XPS. Our results suggest that the respective chemical process most probably does not give rise to electrode passivation but can decrease considerably the Coulombic efficiency of the battery.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 73-32-5, in my other articles. Recommanded Product: 73-32-5.