Design strategies of supported metal-based catalysts for efficient oxidative desulfurization of fuel

The consumption of fuel oil containing sulfur compounds produces SOx, which inevitably leads to severe environmental pollution and even threatens human health. Oxidative desulfurization (ODS) has been identified as a promising pathway to produce clean fuel by virtue of its high efficiency and mild reaction conditions. In recent years, supported metal-based catalysts have attracted scientific research interest due to the high activity and remarkable recyclability for ultra-deep ODS reactions. In this review, the latest research progress on the supported metal-based ODS catalysts is summarized. The reaction mechanism of the supported metal-based ODS catalysts is briefly discussed based on the different metal active components. Notably, we focus on summarizing the design strategies of highly efficient supported metal-based ODS catalysts, with special emphasis on the creation of the concentrated microenvironment of reactants around active sites, construction of highly effective catalytically active sites and improvement of recyclability. These improved strategies are also applicable to the development of the supported metal-based catalysts for other green catalytic reactions. In addition, the current issues and future development trends of the supported metal-based ODS catalysts are pointed out.(C) 2021 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

Automated summary

This review summarizes the latest research progress on supported metal-based ODS catalysts, focusing on the design strategies for highly efficient catalysts and pointing out future development trends.