Improved Water-Gas Shift Performance of Au/NiAl LDHs Nanostructured Catalysts via CeO Addition.

Supported gold on co-precipitated nanosized NiAl layered double hydroxides (LDHs) was studied as an effective catalyst for medium-temperature water-gas shift (WGS) reaction, an industrial catalytic process traditionally applied for the reduction in the amount of CO in the synthesis gas and production of pure hydrogen. The motivation of the present study was to improve the performance of the Au/NiAl catalyst via modification by CeO. An innovative approach for the direct deposition of ceria (1, 3 or 5 wt.