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Can platinum be extracted from exhaust fumes?

Recycling a precious metal from exhaust fumes to create greener energy is a project being worked on by scientists from the universities of Cardiff and Birmingham. Catalytic converters, which reduce pollutants in vehicle emissions, contain platinum and over the years the metal is slowly lost through exhaust pipes. The team are looking at ways of recovering the material, which is an essential component of fuel cells, but need to find locations where the platinum is concentrated enough. ...