@article{Liu2025, 
author = {Yanchun Liu and Xinchao Wang and Zhongling Lang and Yingqi Li and Feiyang Yu and Hongliang Dong and Ruiqi Yao and Shuo Geng and Zixuan Liu and Huaqiao Tan and Yangguang Li},
title = {Pd0-polyoxometalates cluster–cluster catalyst for efficient selective hydrogenation of olefins},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {6},
pages = {94907437},
keywords = {polyoxometalates, palladium cluster, selective hydrogenation, active hydrogen, density functional theory},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907437},
doi = {10.26599/NR.2025.94907437},
abstract = {Clusters exhibit unique activity and selectivity in catalysis. However, research on the interactions between clusters and their synergistic catalysis is still in its infancy. Herein, ultrafine sub-nanowires composed of Pd0 sub-nanoclusters and polyoxometalates (POMs) stacked by cluster–cluster are successfully constructed (abbreviated as Pd-POMs). Notably, Pd-PW12 exhibits exceptional activity (99%) and selectivity (99%) for the hydrogenation of C=C bonds in 4-vinylbenzaldehyde, significantly outperforming other supported Pd-based catalysts. Density functional theory (DFT) calculation results indicate that POMs can stabilize and adjust the electronic structure of Pd clusters, promoting the specific adsorption and reducing hydrogenation energy barriers of C=C bonds. Moreover, the electron–coupled proton (e−/H+) transfer process at the interface can be regulated by altering the redox properties of POMs, achieving extra regulations of the catalytic activity. This work reveals the synergistic optimization effects of POMs on the activity and selectivity of Pd clusters, providing new insights into the rational design of highly efficient catalysts.}
}