Nitrogen-doped graphene supported Pd@PdO core-shell clusters for C-C coupling reactions
graphene, nitrogen-doped, Pd cluster, catalyst, Suzuki reaction
The introduction of nitrogen significantly decreases the metal particle size and improves the performance of metal-based graphene-supported catalysts. In this work, the density functional theory is used to understand the interaction between nitrogen-doped graphene and Pd@PdO clusters. Experiments show that small size Pd@PdO clusters (1–2 nm) can be grown uniformly on nitrogen-doped graphene sheets by a facile oxidation–reduction method. The nanoscale interaction relationship between nitrogen-doped graphene and Pd@PdO clusters is investigated through X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectra (XAS). The composite catalysts are applied in Suzuki–Miyaura reactions giving high yields and good structural stability. These results have potential impact in design and optimization of future high performance catalyst materials for cross coupling reactions.
Tsinghua University Press
Baojiang Jiang,Sanzhao Song,Jianqiang Wang,Ying Xie,Wenyi Chu,Hongfeng Li,Hui Xu,Chungui Tian,Honggang Fu, Nitrogen-doped graphene supported Pd@PdO core-shell clusters for C-C coupling reactions. NanoRes.2014, 7(9): 1280–1290