> For the complete documentation index, see [llms.txt](https://docs.materialsproject.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.materialsproject.org/apps/analysis-apps/pourbaix-app.md).

# Pourbaix Diagram

Background, tutorials, and FAQ for the Pourbaix Diagram App on the Materials Project (MP) website.

In this section, we review how to use the Pourbaix Diagram app to generate Pourbaix diagrams for different elements. The app can generate diagrams for up to 4 elements at a time. We show generating the Fe and Fe-Cr Pourbaix diagram and illustrate some of the Advanced Options available in the app.

Here are the articles in this section:

{% content-ref url="/pages/hHHlTiCtRxf3TEBq8xS6" %}
[Background](/apps/analysis-apps/pourbaix-app/background.md)
{% endcontent-ref %}

{% content-ref url="/pages/du33rRZdcjXWJa7ampDi" %}
[Tutorial](/apps/analysis-apps/pourbaix-app/tutorial.md)
{% endcontent-ref %}

{% content-ref url="/pages/5X11QUYTIdZbZkJbRQKW" %}
[FAQ](/apps/analysis-apps/pourbaix-app/faq-+-known-issues.md)
{% endcontent-ref %}