欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用化学还原法制备了不同Sn/Pd摩尔比的碳纳米管（CNTs）负载Pd/SnO2催化剂,并将该催化剂用于邻氯硝基苯（o-CNB）的选择加氢反应.采用透射电镜、X射线衍射和电感耦合等离子体技术对所制备的Pd/SnO2/CNTs催化剂进行了表征.结果表明,Sn/Pd摩尔比对该催化剂的邻氯硝基苯选择加氢反应性能影响显著.当Sn/Pd摩尔比为11时,催化剂的活性最高,在常压,60oC反应60min,o-CNB转化率为96%.该催化剂还具有高的邻氯苯胺（o-CAN）选择性,o-CNB转化率达到100%时,脱氯副产物苯胺选择性小于5%.在相同条件下,浸渍法制备的2.4%Pd/CNTs催化剂上脱氯副反应严重,当o-CNB完全转化时,o-CAN选择性只有22%,副产物苯胺选择性则高达78%.
英文摘要：
Carbon nanotubes （CNTs）-supported Pd/Sn02 catalysts with different Sn/Pd molar ratios were prepared by the chemical reduction method, and their catalytic activity was tested using ortho-chloronitrobenzene （o-CNB） hydrogenation as a probe reaction. The as-made Pd/SnO2/CNTs catalysts were characterized by transmission electron microscopy, X-ray diffraction, and inductively coupled plasma techniques. The results show that the catalytic performance of Pd/SnO2/CNTs is greatly affected by the Sn/Pd molar ratio. When the Sn/Pd molar ratio is 11, the Pd/SnO2/CNTs catalyst exhibits the highest activity with 96% conversion of o-CNB at 0.1 MPa and 60℃ in 60 min. Moreover, the Pd/SnO2/CNTs catalysts show very good ortho-chloroaniline （o-CAN） selectivity, evidenced by the fact that the selectivity for by-product aniline is less than 5% when the conversion of o-CNB is 100%. For the 2.4% Pd/CNTs catalyst prepared by impregnation, under the identical conditions, the selectivity for o-CAN is only 22% when the o-CNB conversion is 100%.
同期刊论文项目
同项目期刊论文
In situ formation of N,O-bidentate ligand via the hydrogen bond for highly efficient Suzuki reaction
Aerobic oxidation of alcohols over carbon nanotube-supported Ru catalysts assembled at the interface
Effects of carbonization conditions on the properties of coal-based microfiltration carbon membranes
Sidewall fluorination and hydrogenation of single-walled carbon nanotubes: a density functional theo
In-situ synthesis of Fe-filled carbon nanotubes by a floating CVD method with FeCl3 as catalyst prec
Effect of CNT Surface Modification on Catalytic Performance of Pt/CNT for Selective Hydrogenation of
Fabrication of carbon nanofibres and bamboo-shaped carbon nanotubes with open ends from anthracite c
Tailoring of three-dimensional carbon nanotube architectures by coupling capillarity-induced assembl
Very Fast, Ligand-Free and Aerobic Protocol for the Synthesis of 4-Aryl-Substituted Triphenylamine D
A simple and efficient protocol for a palladium-catalyzed ligand-free Suzuki reaction at room temper
A new approach to high performance Co/C catalysts for selective hydrogenation of chloronitrobenzenes
Time-Dependent Density Functional Theory Study on the Electronic Excited-State Hydrogen-Bonding Dyna
Time-Dependent Density Functional Theory Study on Excited-State Dihydrogen Bonding O-H center dot ce
Template Preparation of Highly Active and Selective Cu-Cr Catalysts with High Surface Area for Glyce
Microwave-Assisted Preparation and Hydrazine Decomposition Properties of Nanostructured Tungsten Car
Preparation of High-Surface-Area MoS2 and Its Catalytic Performance for Selective Hydrogenation of Q
期刊信息
位置：