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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
Efficient selective hydrogenation of 2-butyne-1,4-diol to 2-butene-1,4-diol by silicon carbide supported platinum catalyst
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论文类型：期刊论文
发表时间：2020-01-21
发表刊物：CATALYSIS SCIENCE & TECHNOLOGY
收录刊物：EI、SCIE
卷号：10
期号：2
页面范围：327-331
ISSN号：2044-4753
摘要：Selective hydrogenation of 2-butyne-1,4-diol (BYD) to 2-butene-1,4-diol (BED) is important for chemical industries. In this work, a low concentration (0.5 wt%) of platinum (Pt) was deposited onto a silicon carbide (SiC) support by an incipient wetness impregnation approach, and the as-obtained catalyst exhibited an excellent selectivity (similar to 96%) for BED with a high conversion of 96% for BYD. Multiple characterization techniques were applied to investigate the active species for this reaction. The X-ray absorption fine structure (XAFS) data together with the high-resolution transmission electron microscopy (HRTEM) images indicated that the as-calcined 0.5Pt/SiC consisted of platinum oxide clusters (PtxOy), which were further converted to the reduced Pt-0 species during the hydrogenation process. Therefore, metallic Pt nanoparticles with 2-3 nm in size supported on silicon carbide are the active species for BED products via the selective hydrogenation of BYD in this work.