Facile preparation of Pd/organoclay catalysts with high performance in solvent-free aerobic selective oxidation of benzyl alcohol

Hu Wang; Shao-Xin Deng; Zhu-Rui Shen; Jin-Gui Wang; Da-Tong Ding; Tie-Hong Chen

doi:10.1039/B914039P

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Green Chemistry

Issue 10, 2009

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Facile preparation of Pd/organoclay catalysts with high performance in solvent-free aerobic selective oxidation of benzyl alcohol

Hu Wang , Shao-Xin Deng , Zhu-Rui Shen , Jin-Gui Wang , Da-Tong Ding and Tie-Hong Chen

Green Chem., 2009, 11, 1499-1502

DOI: 10.1039/B914039P
Received 24 Jun 2009, Accepted 13 Jul 2009
First published on the web 27 Jul 2009

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A facile method to prepare Pd/organoclay catalysts was reported. At room temperature, in H₂PdCl₄ solution the quaternary ammonium surfactant modifiers intercalated in the organoclay adsorbed PdCl₄²⁻ specifically and quickly. After reduction at room temperature, Pd nanoparticles were formed and well-dispersed in the organoclay matrix. The Pd/organoclay catalysts were used in aerobic oxidation of benzyl alcohol to benzaldehyde and exhibited high and stable activity. Particularly, the 0.2 wt% Pd/organoclay gave a remarkably high turnover frequency (up to 6813 h⁻¹) under base- and solvent-free conditions. Our method can be generally applied for the preparation of Ru, Au and Pt/organoclay catalysts.

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Hu Wang
Shao-Xin Deng
Zhu-Rui Shen
Jin-Gui Wang
Da-Tong Ding
Tie-Hong Chen

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Green Chemistry

Facile preparation of Pd/organoclay catalysts with high performance in solvent-free aerobic selective oxidation of benzyl alcohol

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