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The energy systems of the world are going ‘green’ in a process that is fast becoming irreversible, says Isondo Precious Metals CEO Vinay Somera, who adds that hydrogen is emerging as the main storage medium for energy generated from the sun, wind and other renewable sources.

The storing of wind and solar energy as hydrogen requires the electrolysis of water into hydrogen in a process that uses platinum- and iridium-based catalysts coated on membranes. Converting the hydrogen back into electricity is done in a fuel cell in a process the uses platinum and ruthenium catalysts coated on membranes.

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