🔬 Discovery

Palladium

Paladio (Pd, Z=46)

Date
1803 · confidence high
Place
London, United Kingdom
Credited to
William Hyde Wollaston
People
👤 William Hyde Wollaston1766–1828
Field
Matter & energy

What was discovered

Wollaston separated it from crude platinum and put it on sale anonymously as 'new silver', which sparked controversy until he revealed his authorship.

Named after the asteroid Pallas, discovered in 1802.

What it led to

  • Hydrogenation and cross-coupling catalysts (Nobel 2010)
  • Catalytic converters
  • Hydrogen storage in palladium

Built on

  • Platinum refining
  • Aqua regia

Made possible

  • Suzuki and Heck reactions
  • Three-way catalytic converter

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