High temperature oxidizing-resistant magnetic high entropy catalyst for efficient oxidative desulfurization
摘要:Engineering a magnetic response catalyst for ultra-deep oxidative desulfurization of diesel is a valid strategy for recycling. However, for traditional magnetic response catalysts, high temperature is unfavorable, which will induce demagnetization. In this work, a high entropy structure was proposed to construct a magnetic response MoFeNiCuCoOx-1100 (HEO-1100) catalyst by the ion substitution method. Because of the high-entropy effect, the metallic elements in HEO-1100 showed electron-deficiency status, making the magnetism could be retained after 1100 °C treatment. Moreover, detailed characterizations showed that the oxidative desulfurization active sites, molybdenum oxide, were uniformly dispersed in the HEO-1100, which was beneficial to the promotion of oxidative desulfurization. Because of the electron-deficient structure along with the high dispersion of active sites, the HEO-1100 catalyst possessed significantly enhanced catalytic performance in oxidative desulfurization with oxygen as an oxidant. Especially, owing to the magnetism, the HEO-1100 catalyst could be readily separated and still exhibited high catalytic activity after 18 times recycling. Furthermore, the desulfurization product, sulfone, could be separated, which was a high-value-added product for medicine. ? 2022 Elsevier B.V.
ISSN号:0920-5861
卷、期、页:卷405-406 页66-74
发表日期:2022-12-01
影响因子:6.766000
期刊分区(SCI为中科院分区):二区
收录情况:SCIE(科学引文索引网络版),EI(工程索引)
发表期刊名称:Catalysis Today
参与作者:Deng, Chang,Zhu, Haonan,Huang, Yan,Liu, Hui,Liu, Penghui,Cui, Peng,Liu, Jixing,Wang, Renjie,Wu, Peiwen
第一作者:巢艳红,朱文帅
论文类型:期刊论文
论文概要:Deng, Chang,Zhu, Haonan,Huang, Yan,Liu, Hui,Liu, Penghui,Cui, Peng,巢艳红,Liu, Jixing,Wang, Renjie,Wu, Peiwen,朱文帅,High temperature oxidizing-resistant magnetic high entropy catalyst for efficient oxidative desulfurization,Catalysis Today,2022,卷405-406 页66-74
论文题目:High temperature oxidizing-resistant magnetic high entropy catalyst for efficient oxidative desulfurization