Hiroshima, Japan – Mazda Motor Corporation has announced the world’s first market application of a new emissions system that significantly reduces the amount of precious metals used. It will debut on the all-new Mazda3 this year.

The single-nanocatalyst technology reduces the amount of precious metals in the catalytic converter by approximately 70 per cent. The system still achieves exhaust emissions that are at least 75 per cent cleaner than the Japanese government’s 2005 regulations.

Automotive catalysts consist of a base material coated with precious metal particles, which promote chemical reactions that purify exhaust gases. In conventional catalysts, the hot exhaust gases cause the metals to clump, reducing their effective surface area. To counteract this, a larger amount of precious metal is required. The new catalyst uses smaller particles embedded in fixed positions, preventing clumping and reducing the amount of precious metal required.

Mazda intends to progressively introduce the new catalyst in all of its global markets.

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