Standard Chemical Potential

Materials Project Materials Project Website/Apps
1

Hi,

where can you find the standard chemical potential of an element on the webseite?

Thanks!
Leo

2

Hi @Leo,

Our calculations are all at 0K, so they don’t have the entropic contributions necessary to compute a chemical potential at standard state (STP). For most solids, this contribution should be small and the 0K chemical potential is a good predictor.

The easiest way to get chemical potentials from the website is to make a phase-diagram for your system of interest, set that element to open and then find a chemical potential window that stabilizes the compounds you’re interested in.

We’ll add in being able to search for chemical potential windows explicitly to the new API and website we’re developing.

3

Thank you for the fast answer!
I need to know the chemical potential of pure lithium
If I create a phase diagram for a system from, for example, LiGaCl, I would have to specify Li as an open element. With this diagram, however, I never get pure lithium and therefore cannot read the chemical potential of Lithium like you described
How can I get this information?