Two Chemistry and Biomolecular Engineering Colquium talks - Livestream
Tandem H2-Scavenging Reactions for Dehydrogenation Equilibrium Shifting
Thermodynamic constraints in alkane dehydrogenation can be mitigated by the scavenging of H 2 through reactions with O 2 to form H 2 O or with CO 2 to form CH 4 and CO, an approach often limited in practice by yield losses caused by undesired side reactions, such as alkane combustion and hydrogenolysis. This study employs experimental and theoretical methods to elucidate the mechanistic details for these H 2 -scavenging reactions catalyzed by noble metal nanoparticles. We also explore the encapsulation of H 2 -scavenging metal functions within small-pore zeolites in order to exploit the sieving properties of these materials to increase the selectivities of H 2 -scavenging reactions in the presence of C 3 -C 4 hydrocarbons
Speaker: Haefa Manusour, UC Berkeley
Predicting limiting currents in fluorinated electrolytes
Battery applications are limited by the amount of current that can be forced through the cell. Under the strain of large currents, severe salt concentration gradients can develop within the electrolyte, thus inhibiting larger currents. If the concentration gradients become severe enough, the salt concentration at the cathode approaches zero, and this is known as the limiting current. We study the limiting current in fluorinated electrolytes and find a nonmonotonic dependence on limiting current as a function of salt concentration in both theory and experiment.
Speaker: Deep Shah, UC Berkeley
See weblink for Zoom information
Wednesday, 05/13/20
Contact:
Website: Click to VisitCost:
FreeSave this Event:
iCalendarGoogle Calendar
Yahoo! Calendar
Windows Live Calendar