Issue 86, 2017, Issue in Progress
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RSC Advances

Revealing ruthenium and basicity synergetic effects in Ru–MgAl catalysts for isomerization of linoleic acid to conjugated linoleic acid

Jiebo Chen,*ac   Liaoyuan Zhang,c   Xinyu Zhengc  and  Ying Zhengb  

* Corresponding authors

a National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
E-mail: jiebo-chen@fafu.edu.cn
Fax: +86 59183851742
Tel: +86 59183851742

b College of Chemistry and Chemical Engineering, Fujian Normal University, Fuzhou, Fujian 350007, China

c College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China

Abstract

Ru–MgAl catalysts were prepared by co-precipitation at different pH values (x = 7–12), with the aims of investigating the effect of pH on their catalytic performance for isomerization of linoleic acid to conjugated linoleic acid and of understanding the relationship of basicity site and ruthenium activity site. The results showed that strong basicity and highly dispersed ruthenium may be the active sites for linoleic acid isomerization. Only if all three conditions, i.e., high Ru dispersion, appropriate SMSI effect and high number of strong basicity sites, are fulfilled can highly effective active sites be formed for the isomerization of linoleic acid to conjugated linoleic acid. A possible reaction mechanism for the isomerization was also proposed.

Graphical abstract: Revealing ruthenium and basicity synergetic effects in Ru–MgAl catalysts for isomerization of linoleic acid to conjugated linoleic acid

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Article information

DOI
https://doi.org/10.1039/C7RA10457J
Article type
Paper
Submitted
21 Sep 2017
Accepted
07 Nov 2017
First published
30 Nov 2017
This article is Open Access
Creative Commons BY license

RSC Adv., 2017,7, 54747-54755

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Revealing ruthenium and basicity synergetic effects in Ru–MgAl catalysts for isomerization of linoleic acid to conjugated linoleic acid

J. Chen, L. Zhang, X. Zheng and Y. Zheng, RSC Adv., 2017, 7, 54747 DOI: 10.1039/C7RA10457J

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