梁长海

个人信息Personal Information

教授

博士生导师

硕士生导师

任职 : 大连理工大学成都研究院院长

性别:男

毕业院校:中科院大连化学物理研究所

学位:博士

所在单位:化工学院

学科:化学工艺. 物理化学. 功能材料化学与化工

办公地点:大连理工大学西部校区化工综合楼A401室

联系方式:辽宁省大连市高新区凌工路2号,邮编116024

电子邮箱:changhai@dlut.edu.cn

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'Ship-in-a-Bottle' Synthesis of MoS2/MCM-41 Catalysts by Decomposition of Single Source Precursor in Mesoporous Channel

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论文类型:期刊论文

发表时间:2012-07-01

发表刊物:CATALYSIS LETTERS

收录刊物:SCIE、EI

卷号:142

期号:7

页面范围:854-859

ISSN号:1011-372X

关键字:Ship-in-a-bottle; Molybdenum sulfide; Mesoporous material; Hydrodesulfurization

摘要:MoS2/MCM-41 catalysts have been prepared by thermal decomposition of MCM-41 with cetyltrimethylammonium thiomolybdate, which was synthesized by reaction between ammonium thiomolybdate and cetyltrimethylammonium bromide left in the pore channel of MCM-41. The obtained catalysts exhibit type IV adsorption-desorption isotherms, indicating that MCM-41 mesoporous structure is retained during the synthesis process. With increasing loading of MoS2, the catalytic activity of MoS2/MCM-41 for HDS of DBT first increases, followed by a leveling off above 10 % MoS2 loading, likely due to lack of accessibility to additional active sites. For the first time over MoS2 catalysts, the DDS (i.e., hydrogenolysis) reaction pathway is favored with 100 % selectivity. This unique performance is associated with single layer MoS2 sites stabilized within the pores of the MCM-41 support.
   MoS2/MCM-41 catalysts have been prepared by thermal decomposition of cetyltrimethylammonium thiomolybdate in MCM-41, which was synthesized by reaction between ammonium thiomolybdate and cetyltrimethylammonium bromide left in the mesoporous channel.