氮掺杂介孔碳纳米球负载铂催化剂在肉桂醛选择性加氢中的催化性能研究  

Nitrogen-doped mesoporous carbon nanospheres supported platinum catalyst and its catalytic performance in selective hydrogenation of cinnamaldehyde

作　　者：刘雯欣 李丹[3] 王平[1] 张朋 张伟[1] 鲁墨弘[1] 李明时[1] 朱劼[1,2] LIU Wen-xin;LI Dan;WANG Ping;ZHANG Peng;ZHANG Wei;LU Mo-hong;LI Ming-shi;ZHU Jie(School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China;National&Local Joint Engineering Research Center of Biomass Refining and High-quality Utilization,Changzhou 213164,China;School of Pharmacy,Changzhou University,Changzhou 213164,China)

机构地区：[1]常州大学石油化工学院,江苏常州213164 [2]生物质高效炼制及高质化利用国家地方联合工程研究中心,江苏常州213164 [3]常州大学药学院,江苏常州213164

出　　处：《现代化工》2022年第1期178-183,共6页Modern Chemical Industry

基　　金：国家自然科学基金(21676029);江苏省研究生实践创新计划(SJCX20_0988)。

摘　　要：以多巴胺为碳源和氮源、F127为软模板制备氮掺杂有序介孔碳纳米球(NOMCS),并以其为载体制备Pt催化剂(Pt/NOMCS)。通过TEM、XPS、OEA、Raman和N_(2)吸附等手段对材料进行表征。将制备的Pt/NOMCS用于肉桂醛(CAL)选择性加氢模型反应,并研究其催化性能。结果表明,与商用介孔炭(MC)和活性炭(AC)负载Pt催化剂(Pt/MC和Pt/AC)相比,Pt/NOMCS在CAL选择性加氢中显示出较高的催化活性(反应速率常数k=(0.37±0.02)h^(-1))和选择性(转化率为90%时的肉桂醇选择性约为75%)。循环实验4次后,Pt/NOMCS显示出较好的可回收性能。Nitrogen-doped ordered mesoporous carbon nanospheres(NOMCS) are synthesized by using dopamine as carbon-nitrogen sources and F127 as soft template.NOMCS are further employed as carrier to prepare Pt catalyst(Pt/NOMCS).The prepared materials are characterized by means of transmission electron microscopy, X-ray photoelectron spectroscopy, organic element analysis, Raman spectroscopy and N_(2)adsorption.Pt/NOMCS is used in the selective hydrogenation of cinnamaldehyde(CAL),and its catalytic performance is evaluated.In comparison to mesoporous carbon supported Pt catalyst(Pt/MC) and activated carbon supported one(Pt/AC),Pt/NOMCS exhibits a higher catalytic activity(reaction rate constant k=(0.37±0.02) h^(-1)) and a higher selectivity for cinnamyl alcohol(about 75% selectivity at 90% CAL conversion).Additionally, Pt/NOMCS shows good recyclability after 4 cycles of uses.

关 键 词：氮掺杂 碳纳米球 PT 催化剂 肉桂醛 选择性加氢 

分 类 号：TQ032.4[化学工程]