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N₂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 N₂ 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.

刘雯欣(1996-),女,硕士研究生,研究方向为纳米材料与催化加氢,920795274@qq.com