Nanotechnology theory guides synthesis of better catalysts for fuel cells

By combining more precise core-shell nanoparticle synthesis techniques with electronic structure theory to predict the properties of nanoparticles, nanotechnology researchers have produced a better catalyst for fuel cells. From “‘Designer’ catalyst fights fuel cell poisoning“:

US scientists have designed from first principles nanoparticles that efficiently oxidise carbon monoxide (CO) — a contaminant commonly found in hydrogen used to run fuel cells.

A major problem facing fuel cells is that the hydrogen-rich materials feeding the reaction often contain CO, which is formed during hydrogen production. This CO ‘poisons’ the electrodes in the fuel-cell devices, deteriorating their efficiency.

Now, a team led by Bryan Eichhorn of the University of Maryland and Manos Mavrikakis of the University of Wisconsin, Madison, have designed and made a catalyst for the preferential oxidation (PROX) of CO comprising a ruthenium (Ru) core inside a Platinum (Pt) shell…

The research was published in Nature Materials (abstract).
—Jim

Leave a comment

0
    0
    Your Cart
    Your cart is emptyReturn to Shop
      Privacy Overview

      This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.