期刊
ACS APPLIED NANO MATERIALS
卷 4, 期 2, 页码 1085-1093出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.0c02639
关键词
tungsten oxide; alkyl-substituted dibenzothiophene; aerobic oxidative desulfurization; oxygen defects; nanoporous materials
资金
- National Nature Science Foundation of China [21776116, 21722604, 21766007]
- China Postdoctoral Science Foundation [2020M671365]
- High-tech Research Key Laboratory of Zhenjiang [SS2018002]
- Qinglan Project of Jiangsu Province
In this study, 3DOM WOx-400 catalysts with abundant oxygen defects and high desulfurization activity were successfully prepared, achieving over 99% aerobic oxidative desulfurization rate within 4 hours. The material showed potential for recycling and efficient desulfurization, providing a feasible route for developing nanoporous materials for fuel desulfurization.
Alkyl-substituted dibenzothiophenes such as 4,6-dimethyldibenzothiophene are a kind of typical refractory sulfur compound in fuel oil. Herein, three-dimensional ordered macro-mesoporous (3DOM) tungsten oxide catalysts were successfully prepared for aerobic oxidative desulfurization of 4,6-dimethyldibenzothiophene. The experimental results indicated that the as-prepared material 3DOM WOx-400 not only contained a hexagonal packed nanoporous structure but also abundant oxygen defects on its skeleton, exhibiting aerobic oxidative desulfurization of over 99% in 4 h. Moreover, sulfur removal could still reach 99% after recycling five times. Through free radical capture experiments, the superoxide radical is reasonably proposed in the mechanism. This work would provide a feasible route to develop highly efficient nanoporous materials for desulfurization of fuels.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据