Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun physics The difference between the
electric potential of anelectrode orcell under the passage of acurrent and thethermodynamic value of the electrode or cell potential in the absence ofelectrolysis
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
over- + potential
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Examples
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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.
Green Car Congress 2009
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Because the hydrogen evolution reaction (HER) on plain carbon electrodes is very slow, a high overpotential is required to drive hydrogen production.
Green Car Congress 2008
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To reduce this overpotential, platinum is usually used as a catalyst.
Green Car Congress 2008
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