SMRTR Science & EngineeringApr 6, 2026Interesting Engineering

Plastic turned into clean hydrogen fuel using solar reactor and waste battery acid

SMRTR summary

Cambridge researchers created a solar-powered reactor that converts hard-to-recycle plastics into hydrogen fuel and industrial chemicals using acid recovered from discarded car batteries. The system breaks down polymer chains with battery acid, then uses sunlight and a photocatalyst to produce hydrogen and acetic acid, offering a sustainable solution that transforms multiple waste streams into valuable products.

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