Reduction of NO with Fe(ii) and subsequent regeneration of Fe(ii) in a fuel cell

Abstract

We report complete reduction reaction of NO into N2 by oxidizing Fe2+ into Fe3+. To regenerate Fe2+ as a NO absorbent from Fe3+, the H2–Fe3+ fuel cell supplied by Fe3+-containing solution at the cathode is utilized producing maximum power density of 110 mW cm−2 at 70 °C.