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Pd/TiO2催化剂上丁二酸加氢制γ-丁内酯反应性能
发表时间：2016-04-15 浏览量：1983 下载量：826
| 全部作者： | 尤陈佳，陈立芳，漆志文 |
| 作者单位： | 华东理工大学化工学院 |
| 摘 要： | 采用溶剂热法合成锐钛矿型TiO2纳米片，经沉积-沉淀法负载高分散的Pd后制备得到Pd/TiO2催化剂。经表征Pd粒子均匀分散于TiO2表面，平均粒径为1.9 nm. 将制备的Pd/TiO2催化剂用于催化丁二酸（succinic acid，SUC）加氢制γ-丁内酯（γ-butyrolactone，GBL）反应，并考察TiO2焙烧温度和反应时间对催化性能的影响。实验结果表明，Pd/TiO2 (400)是一种高效的SUC加氢反应制GBL的催化剂。以水作溶剂，200℃、107 Pa H2下反应8 h，SUC转化率达90%，GBL选择性和收率分别为94%和85%. |
| 关 键 词： | 催化化学；丁二酸加氢；Pd纳米颗粒；TiO2；γ-丁内酯 |
| Title： | Hydrogenation of succinic acid to γ-butyrolactone over Pd/TiO2 catalysts |
| Author： | YOU Chenjia, CHEN Lifang, QI Zhiwen |
| Organization： | School of Chemical Engineering, East China University of Science and Technology |
| Abstract： | In this paper, anatase TiO2 nanosheets were synthesized by solvothermal method and then highly dispersed palladium nanoparticles were loaded on the TiO2 support (Pd/TiO2) by the deposition-precipitation method. The characterization results reveal that Pd particles are highly dispersed onto the surface of TiO2 nanosheets with average size of 1.9 nm. The Pd/TiO2 catalysts were used for the selective hydrogenation of succinic acid (SUC) to γ-butyrolactone (GBL) and the calcination temperature of TiO2 and reaction time were also investigated. Pd/TiO2 (400) is an efficient catalyst for the hydrogenation of SUC to GBL, which exhibits 90% SUC conversion, 94% selectivity to GBL and 85% yield for GBL at 200℃ and 107 Pa H2 for 8 h using water as green solvent. |
| Key words： | catalysis chemistry; succinic acid hydrogenation; Pd nanoparticles; TiO2; γ-butyrolactone |
| 发表期数： | 2016年4月第7期 |
| 引用格式： | 尤陈佳，陈立芳，漆志文. Pd/TiO2催化剂上丁二酸加氢制γ-丁内酯反应性能[J]. 中国科技论文在线精品论文，2016，9（7）：746-752. |
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