Sabatier principleScaling relationDescriptorWe discuss three concepts that have made it possible to develop a quantitative understanding of trends in transition-metal catalysis: scaling relations, activity maps, and the d-band model. Scaling relations are correlations between surface bond energies of ...
Oxygen evolution reaction (OER) is a vital process for water splitting, fuel cells, and metal-air batteries1,2,3. Essentially, the OER process is a thermodynamically uphill reaction with multi-step proton-coupled electron transfer, and the sluggish kinetics requires high-performance catalysts to re...
Following the Sabatier principle, to obtain excellent catalysts, the adsorption energy of these reaction intermediates on the catalyst surface should be neither too strong nor too weak [18], [19]. Other descriptors regarding the high activity of BSCF for OER activity have also been proposed, such...
He devised Le Chatelier's principle, used by chemists to predict the effect a changing condition has on a system in chemical equilibrium. Birthplace: Paris, France Hervé This Age: 69 Hervé This (French: [tis]; born 5 June 1955 in Suresnes, Hauts-de-Seine) is a French physical c...
At the cellular level, retinal ischemia consists of a self-reinforcing pro-apoptotic cascade involving neuronal depolarization, calcium influx, oxidative stress, energy deple- tion, and glutamatergic stimulation. A number of animal models and analytical techniques have * To whom correspondence should be...
This study characterizes the temporal evolution of forest covers in French Guiana using variations in the Moderate Resolution Imaging Spectroradiometer (MODIS) satellite signal and vegetation indices, such as the Shortwave Infrared Water Stress Index and the Enhanced Vegetation Index. The principle consists...
This relation was the first experimental proof of Sabatier’s principle [43]. Decades later, Nørskov et al. [16] showed that the metal surface must be oxidized to produce O2. They found that the difference in binding energy between the O* and OH* intermediates (ΔGO* − ΔGOH*) ...
Prohibited items that can catch you out: As well as the obvious prohibited items such as firearms or explosives, Eurostar prohibits any knife with a blade over 3", which has been known to catch out people returning to London with a nice set of Sabatier kitchen knives they bought in Paris...
Qualitatively, this is often rationalized in a simple way: there is a need to balance between binding strongly enough to encourage the reaction but weakly enough for the product to easily desorb. Fig. 1 shows how the Sabatier principle generally manifests as so-called volcano plots [11]. ...
It is expected that WNV infection will become even more widespread due to global climate change. Changes in weather conditions such as temperature, precipitation, humidity, and wind can have a wide variety of effects from changing the habitat range of WNV susceptible mosquito species to a change ...