Synergistic effect of bimetallic PdAu nanocrystals on oxidative alkyne homocoupling
作者:Zheng Chen、Rongan Shen、Chen Chen、Jinpeng Li、Yadong Li
DOI:10.1039/c8cc06744a
日期:——
Bimetallic PdAu nanocrystals with different component ratios were obtained to investigate alkynehomocoupling. We found that the synergistic effect of Pd and Au plays an important role in the reaction. Alkynes with a variety of substituent groups could efficiently be converted into the corresponding 1,3-diynes through oxidative coupling.
oleylamine as both solvent and reductant was very effective for the preparation of the monodispersed nanoalloy. We evaluated the catalytic activity of these AuPd@C nanoalloys for oxidative dehydrogenativecoupling of aniline, which showed better catalytic activity than equal amounts of sole Au@C or Pd@C catalyst. The Au1Pd3@C catalyst exhibited the best performance, indicating that the conversion and selectivity
Synthesis of dendritic PdAu nanoparticles with enhanced electrocatalytic activity
作者:Wei Hong、Changshuai Shang、Jin Wang、Erkang Wang
DOI:10.1016/j.elecom.2014.08.017
日期:2014.11
method for the rapidsynthesis of dendritic PdAu alloyedbimetallic nanocrystals is demonstrated. The whole synthetic process is very simple just by mixing Na2PdCl4, HAuCl4, polyvinylpyrrolidone and hydroquinone and heated at 50 °C for 15 min. The as-prepared dendritic PdAu nanoparticles exhibit superior catalytic activity for methanol, ethanol and glycerol electrooxidation in alkaline solution, and
Nano PdAu Bimetallic Alloy as an Effective Catalyst for the Buchwald-Hartwig Reaction
作者:Zheng Chen、Shuo Wang、Chao Lian、Yuxi Liu、Dingsheng Wang、Chen Chen、Qing Peng、Yadong Li
DOI:10.1002/asia.201500531
日期:2016.2
heterogeneous catalysts for C−Cl bond activation in coupling reactions. Here, we succeeded in synthesizing bimetallic Pd‐Au nanoparticles through a convenient one‐pot wet chemical route. The composition and alloyed structure of the as‐prepared nanoparticles were fully characterized. We have evaluated the catalytic activity of these Pd‐Au alloycatalysts in Buchwald–Hartwigreactions of aryl chlorides