Turing's Patterns Inspire a CO₂-Busting Catalyst

Drawing inspiration from the self-organising patterns Alan Turing described in nature, researchers have engineered a highly efficient catalyst for converting CO₂ into useful carbon monoxide (CO). The breakthrough lies in the catalyst's unique geometric structure, which significantly enhances its performance in a light-powered chemical reaction.

The new architecture features a tantalum pentoxide (Ta₂O₅) nanomesh with a complex, labyrinthine network, supported on a graphitic carbon nanosheet. This intricate design, a 'Turing structure', creates a vast active area for the reaction to occur. It improves how reactants move, separates electrical charges more effectively, and provides more special sites that lower the energy barrier for converting CO₂.

When illuminated with full-spectrum light, this photo-thermal catalyst rapidly heats to 227 °C. It uses water to help reduce the CO₂ and achieves a CO production rate approximately 19 times higher than a similar catalyst with a conventional, non-Turing structure. This work showcases a powerful new design concept for creating more efficient catalysts.