Co3O4 Nanoparticles Supported on Mesoporous Carbon for Selective Transfer Hydrogenation of ,β-Unsaturated Aldehydes

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• 作者：Dr. Guang-Hui Wang ; Xiaohui Deng ; Dr. Dong Gu ; Dr. Kun Chen ; Dr. Harun Tü ; ysü ; z ; Bernd Spliethoff ; Hans-Josef Bongard ; Dr. Claudia Weidenthaler ; Dr. Wolfgang Schmidt and Prof. Dr. Ferdi Schü ; th
• 刊名：Angewandte Chemie
• 出版年：2016
• 出版时间：September 5, 2016
• 年：2016
• 卷：128
• 期：37
• 页码：11267-11271
• 全文大小：2677K
• ISSN：1521-3757

文摘

A simple and scalable method for synthesizing Co₃O₄ nanoparticles supported on the framework of mesoporous carbon (MC) was developed. Benefiting from an ion-exchange process during the preparation, the cobalt precursor is introduced into a mesostructured polymer framework that results in Co₃O₄ nanoparticles (ca. 3 nm) supported on MC (Co₃O₄/MC) with narrow particle size distribution and homogeneous dispersion after simple reduction/pyrolysis and mild oxidation steps. The as-obtained Co₃O₄/MC is a highly efficient catalyst for transfer hydrogenation of α,β-unsaturated aldehydes. Selectivities towards unsaturated alcohols are always higher than 95 % at full conversion. In addition, the Co₃O₄/MC shows high stability under the reaction conditions, it can be recycled at least six times without loss of activity.