Dalian Institute of Chemical Physics,Chinese Academy of Sciences
Welcome Campus Map Contact 中文
About Research People International Facilities
Location: Home >> News & Events >> News
Carboxylate Modifier Controls the Selectivity for MnOx Catalyst
  English.dicp.cas.cn    Posted:2018-03-12    From:DNL0601

Recently, a research group led by Prof. XU Jie from Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences reported a green modified manganese oxide surface with carboxylates. It could tune the selectivity of ammoxidation toward the desired products. Their results were published in Nature Communications.

Achieving the selectivity-tunable aerobic ammoxidation of hydroxyaldehyde by an organic carboxylic acid-modified MnOx catalyst. (Image by JIA Xiuquan)

Nitriles are key compounds for the synthesis of materials like polyamides, which are widely used in chemical industry. They are traditionally produced from fossil resources.

Biomass as a renewable resource provides the next generation feedstocks for the synthesis of biomass-based nitriles. However, precisely controlling the reaction selectivity remains a challenge.

Researchers focused on the design and the preparation of organic modified catalysts and their applications in oxidation reactions. In this work, researchers showed that the green modification of the manganese oxide surface with carboxylates could be used to tune the ammoxidation selectivity toward the desired products.

For example, the ammoxidation conversion of 5-hydroxymethylfurfural over manganese oxide catalyst usually afforded the derivatives of 2,5-dicyanofuan. A green modified manganese oxide catalyst surface with carboxylates improved the ammoxidation selectivity for hydroxynitrile to 92%.

The self-assembled modification of metal oxides can potentially serve as a complement to recent efforts aimed at controlling the selectivity of oxidation and ammoxidation reactions. (Text by JIA Xiuquan)



Campus Map

Old Website

Dalian Institute of
Chemical Physics, CAS
457 Zhongshan Road
Dalian, China 116023

Copyright © 1999-2018. Dalian Institute of Chemical Physics, Chinese Academy of Sciences. All rights reserved.