@article{Guo2022, 
author = {Yalin Guo and Yangyang Li and Xiaorui Du and Lin Li and Qike Jiang and Botao Qiao},
title = {Pd single-atom catalysts derived from strong metal–support interaction for selective hydrogenation of acetylene},
year = {2022},
journal = {Nano Research},
volume = {15},
number = {12},
pages = {10037-10043},
keywords = {selective hydrogenation of acetylene, Pd single-atom catalysts (SACs), weak π-bonding ethylene adsorption, strong metal–support interaction (SMSI)},
url = {https://www.sciopen.com/article/10.1007/s12274-022-4376-5},
doi = {10.1007/s12274-022-4376-5},
abstract = {Selective hydrogenation of acetylene in excess ethylene is an important reaction in both fundamental study and practical application. Pd-based catalysts with high intrinsic activity are commonly employed, but usually suffer from low selectivity. Pd single-atom catalysts (SACs) usually exhibit outstanding ethylene selectivity due to the weak π-bonding ethylene adsorption. However, the preparation of high-loading and stable Pd SACs is still confronted with a great challenge. In this work, we report a simple strategy to fabricate Pd SACs by means of reducing conventional supported Pd catalysts at suitable temperatures to selectively encapsulate the co-existed Pd nanoparticles (NPs)/clusters. This is based on our new finding that single atoms only manifest strong metal–support interaction (SMSI) at higher reduction temperature than that of NPs/clusters. The derived Pd SACs (Pd1/CeO2 and Pd1/α-Fe2O3) were applied to acetylene selective hydrogenation, exhibiting much improved ethylene selectivity and high stability. This work offers a promising way to develop stable Pd SACs easily.}
}