High-entropy oxide stabilized molybdenum oxide via high temperature for deep oxidative desulfurization

High-entropy oxides (HEOs) possess a maximized configurational entropy and not only show an excellent stability at high temperatures, but generate abundant catalytically-active sites among different constituents, resulting in a promising performance in catalytic processes. In this work, we prepared a high entropy metal oxide MoNiCuZnCoOx. Mo and other four metals formed a special form of loading, solid solution loading. This loading method keeps Mo stable at high temperature and uniformly dispersed. Its application in oxidative desulfurization of fuels shows high activity and excellent regenerability. The results prove the unique advantages of HEOs material in catalysis. (c) 2020 Elsevier Ltd. All rights reserved.