Catalytic Materials: Cheaper, Better Air Purification for a Healthier World

The Problem

Catalytic converters are the most widely used kind of air pollution control device, and are installed in many smokestacks and car tailpipes. However, standard catalytic converters are very expensive because the catalysts used in them are precious metals like platinum, meaning they are not always replaced as often as they should be, and are the target of theft in lower-income areas. They are also inefficient, because not all of the precious metal particles come into contact with the air they are meant to clean.

Our Solution

Researchers at the Wyss Institute and Harvard SEAS developed a new type of catalytic material that is inspired by the honeycomb-like nanostructure of butterfly wings. This underlying structure creates tiny channels through which air can flow unimpeded, maximizing the contact between air and the purifying surface. It also enables the precise placement of catalyst nanoparticles within the channels, reducing the amount of precious metals required by up to 95%. Our catalytic materials can be easily integrated into the existing $20B catalytic converter industry, and could bring lifesaving air purification technology to consumers and people in low-income or conflict areas.

Metalmark licensed this technology for limited applications in 2020.

This technology is available for other licensing opportunities.