Pt プラチナ
A promising star with great potential, from catalysts to anticancer drugs.
Fuel cells (polymer electrolyte type)
Principles and the role of platinum
Platinum is used in fuel cells, which are attracting attention as a next-generation energy supply system that is friendly to the global environment.
Platinum plays a major role in the clean power generation system that generates electrical energy by separately reacting "hydrogen" and "oxygen" using different platinum-catalyzed electrodes, and emits only "water" without emitting carbon dioxide (CO2) or air pollutants.
Precious Metal Element Data
| Atomic Number | 78 |
|---|---|
| atomic weight | 195.084 |
| Stable Isotope | 190Pt,192Pt,194Pt,195Pt,196Pt,198Pt |
| crystal structure | fcc |
| Metallic | Trans.Metal |
| Shell structure | 2,8,18,32,17,1 |
| Occupied Orbit | 5d9 |
| Oxidation state | 2,4 |
| Atomic radius | 1.39 |
| Shared bond radius | 1.30 |
| Atomic capacitance | 9.10 |
| Density (293K) | 21.45 |
| Melting point | 1768.2 |
| Boiling Point | 3827 |
| Specific heat | 0.13 |
| melting heat | 21.7 |
| heat of vaporization | 510.0 |
| Thermal conductivity (273K) | 72 |
| Electrical resistivity (273K) | 9.81 |
| Linear thermal expansion coefficient (293K) | 8.8 |
| First ionization potential | 8.9588 |
| Second ionization potential | 18.563 |
| Electron Affinity | 2.128 |
| Electronegativity | 2.2 |
| Year of Discovery | 1748 |
