The effect of support and promoters on the performance of Pt-based H2-SCR catalysts for NOx removal - Raw Data

However, to efficiently remove the resulting NOx emissions, the current H₂-SCR technologies require a more in-depth understanding that will enable further catalyst improvements. In this context, this manuscript reports a systematic study on the effect of support and promoters on the H2-SCR performance of Pt-based catalysts.

Parameters such as catalyst pre-treatment, noble metal loading, space velocity, and gas composition, were varied to elucidate their effects on the measured activity and selectivity profiles and to gain insight into the underlying reaction mechanism. A moderate interaction with the support and the formation of small Pt nanoparticles were identified as essential for NOx conversion at low temperatures. Accordingly, TiO₂-supported catalysts were found to be superior in terms of NOx conversion and N2 yield compared to the CeO₂-supported samples.