检索结果-南通市图书馆

Engineering surface framework tiO6 single sites for unprecedented deep oxidative desulfurization

National Science Review 2024年第5期11卷 303-314页

作者： Shen Yu Zhan Liu Jia-Min Lyu Chun-Mu Guo Xiao-Yu Yang Peng Jiang Yi-Long Wang Zhi-Yi Hu Ming-Hui Sun Yu Li Li-Hua Chen Bao-Lian Su Laboratory of Living Materials at the State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Nanostructure Research Center Wuhan University of Technology School of Chemistry Chemical Engineering and Life ScienceWuhan University of Technology Laboratory of Inorganic Materials Chemistry University of Namur

Catalytic oxidative desulfurization（ODS） using titanium silicate catalysts has emerged as an efficient technique for the complete removal of organosulfur compounds from automotive fuels. However, the precise control of highly accessible and stable-framework ti active sites remains highly challenging. Here we reveal for the first time by using density functional theory calculations that framework hexa-coordinated ti（tiO6） species of mesoporous titanium silicates are the most active sites for ODS and lead to a lower-energy pathway of ODS. A novel method to achieve highly accessible and homogeneously distributed framework tiO6active single sites at the mesoporous surface has been developed. Such surface framework tiO6species exhibit an exceptional ODS performance. A removal of 920 ppm of benzothiophene is achieved at60°C in 60 min, which is 1.67 times that of the best catalyst reported so far. For bulky molecules such as4,6-dimethyldibenzothiophene（DMDBT）, it takes only 3 min to remove 500 ppm of DMDBT at 60°C with our catalyst, which is five times faster than that with the current best catalyst. Such a catalyst can be easily upscaled and could be used for concrete industrial application in the ODS of bulky organosulfur compounds with minimized energy consumption and high reaction efficiency.

关键词： electrostatic interactions framework hexa-coordinated ti site oxidative desulfurization mesoporous materials self-assembly

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：