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Vol. 35 No. 12 (2023): Vol 35 Issue 12, 2023

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Investigation of Parameters Influencing the Activity and Selectivity of Ru-Sn Catalyst for Chemoselective Hydrogenation of Benzoic Acid to Benzyl Alcohol

https://doi.org/10.14233/ajchem.2023.30574
Sunil B. Shinde
National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-411007, India
Raj M. Deshpande
Post Graduate Department of Chemistry, Sir Parashurambahu College (Affiliated to Savitribai Phule Pune University), Tilak Road, Pune-411030, India

Corresponding Author(s) : Sunil B. Shinde

sbs1977@gmail.com

Asian Journal of Chemistry, Vol. 35 No. 12 (2023): Vol 35 Issue 12, 2023

Abstract

This study assessed the Ru-Sn catalyst’s performance in benzoic acid hydrogenation to benzyl alcohol, highlighting the optimal Sn/Ru
ratio of 5 for peak activity in a Ru-Sn/Al2O3 system. TiO2 support outperformed Al2O3 and SiO2, achieving a 72% conversion rate and 83% selectivity towards benzyl alcohol. Increasing the reduction temperature enhanced catalyst activity and selectivity. While Ru remained stable, tin showed leaching; this decreased with reuse of catalyst and higher catalyst reduction temperatures. Notably, TiO2 support minimized Sn leaching and benzoic acid’s acidity did not induce Sn leaching. The findings provide key insights into optimizing the Ru-Sn catalyst for hydrogenation of benzoic acid.

Keywords

Hydrogenation Chemo-selectivity Bimetallic catalyst Metal leaching Benzoic acid Benzyl alcohol
Shinde, S. B., & Deshpande, R. M. (2023). Investigation of Parameters Influencing the Activity and Selectivity of Ru-Sn Catalyst for Chemoselective Hydrogenation of Benzoic Acid to Benzyl Alcohol. Asian Journal of Chemistry, 35(12), 3022–3026. https://doi.org/10.14233/ajchem.2023.30574
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