Pd

1. Introduce – Palladium is a member of the platinum group of elements and a metal with excellent ductility and electrical properties – Among the platinum group elements, it has the lowest melting point (1,555°C) and density (12 g/cm³), and is the most chemically reactive – It does not oxidize at room temperature but reacts with oxygen at temperatures above 800°C to form palladium oxide – It has the unique property of absorbing more than 900 times its own volume in hydrogen at room temperature, making it suitable for use in hydrogen storage alloys (Pd: The activation en...