Photo-thermo semi-hydrogenation of acetylene on Pd₁/TiO₂ single-atom catalyst.

ABSTRACT: Semi-hydrogenation of acetylene in excess ethylene is a key industrial process for ethylene purification. Supported Pd catalysts have attracted most attention due to their superior intrinsic activity but often suffer from low selectivity. Pd single-atom catalysts (SACs) are promising to significantly improve the selectivity, but the activity needs to be improved and the feasible preparation of Pd SACs remains a grand challenge. Here, we report a simple strategy to construct Pd₁/TiO₂ SACs by selectively encapsulating the co-existed small amount of Pd nanoclusters/nanoparticles based on their different strong metal-support interaction (SMSI) occurrence conditions. In addition, photo-thermo catalysis has been applied to this process where a much-improved catalytic activi

SUBMITTER: Guo Y 

PROVIDER: S-EPMC9098498 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature