from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun physics The difference between the
electric potentialof an electrodeor cellunder the passage of a currentand the thermodynamicvalue of the electrode or cell potential in the absence of electrolysis
from Wiktionary, Creative Commons Attribution/Share-Alike License
When you factor in the abundance of cobalt oxide, the stability of the nanoclusters under use, the modest overpotential and mild pH and temperature conditions, we believe we have a promising catalytic component for developing a viable integrated solar fuel conversion system.
Because the hydrogen evolution reaction (HER) on plain carbon electrodes is very slow, a high overpotential is required to drive hydrogen production.
To reduce this overpotential, platinum is usually used as a catalyst.