Preferential CO oxidation in a hydrogen-rich stream over gold supported on Ni-Fe mixed metal oxides for fuel cell applications

- Preparation of Ni-Fe mixed metal oxides from Ni-Fe hydrotalcite-like precursors.
- Gold particles ranging from 4 to 10 nm deposited on Ni-Fe oxide supports.
- Almost complete conversion of CO was possible at low temperatures.
- In the PROX reaction, H2O mitigated the negative effect of CO2.