Strong interactions between oxide supports and catalytic metal particles can lead to inhibitive oxide layers forming over the active metal catalyst. Now, adsorbate-induced metal–support interactions have been shown to lead to a porous overlayer in the Rh/TiO2 system that tunes catalyst activity, improving its selectivity for the partial reduction of CO2.
Chandler, B. D. (2017). Strong metal-support interactions: An extra layer of complexity. Nature Chemistry, 9, 108-109. doi: 10.1038/nchem.2724