The contact of carbon and silver caused a decrease in the reaction sites of silver and the electrolyte, and hence the dissolution potential of silver was increased. Because the fuel cell was operated at an overpotential of 100-300 mV, the dissolution of silver was not important....
Oxygen Reduction Reaction on Silver Catalysts in Alkaline Media: a Minireviewdoi:10.1002/celc.201800913ElectrocatalysisfuelcellsnanoparticlesoxygenreductionsilvercatalystHeikiInstituteEriksonInstituteAveInstituteSarapuuInstituteKaidoInstituteTammeveskiInstituteWiley...
silverreaction kineticsKinetic data on hydrogen interaction with adsorbed oxygen testify to the uniformity and constancy of the oxygen bond with the silver surface. The surface reaction of ethylene epoxidation proceeds when the surface coverage by oxygen is higher than a certain threshold value, which ...
The intention for such high oxidative potential (much higher than the equilibrium potential-1.23 V of oxygen evolution reaction (OER)) was to increase the reaction rate for the oxidation of silver. In the Conclusions In summary, the self-supported NPS obtained by a simple and scalable ...
Chemisorption of oxygen, chlorine, hydrogen, hydroxide, and ethylene on silver clusters: A model for the olefin epoxidation reaction Carter E A,,Goddard W A.Chemisorption of Oxygen,Chlorine,Hydrogen,Hydroxide,and Ethylene on Silver Clusters:A Model for the Olefin Epoxidation Reaction. ... Emily,A...
The oxygen reduction reaction, the slow kinetics of which is well-known to limit efficient energy production from fuel cells, is shown to be catalyzed at adsorbate-covered silver electrodes when the electrode is irradiated with wavelengths in the visible and near-ultraviolet. We report the photocurr...
beta. -W sub 2 C and WC: The effect of surface oxygen on reaction pathways Tungsten carbide powders with WC and β-W 2 C structures catalyze alkane hydrogenolysis reactions. Alkanes adsorb on fresh carbide surfaces strongly, leadi... FH Ribeiro,M Boudart,R. A. Dalla Betta,... - 《...
Finding highly active and low-cost catalysts is a crucial endeavour to harvest clean hydrogen via electrochemical water splitting. Currently, the best catalyst for the hydrogen evolution reaction is based on metallic platinum whose high price severely re
In order to obtain AgNPs of fine size and shape, optimization of the main reaction parameters was performed with contact time (5–45 min), silver salt precursor concentration (0.1–0.5%) and chitosan-algae extract proportion (4:1, 3:2, 2.5:2.5, 2:3, 1:4 ml), respectively. The samples...
Ag is a potential low-cost oxygen reduction reaction (ORR) catalyst in alkaline condition, which is important for the zinc-air batteries. Here, we report that an Ag based single atom catalyst with heteroatom coordination. Ag1-h-NPClSC, has been synthesized and shown much improved performance...