氮掺杂多孔碳材料的制备及其用于CO_(2)的催化转化

Synthesis of Nitrogen-doped Porous Carbon Materials for the Catalytic Conversion of CO_(2)

以烟酸为碳源和氮源,氢氧化钾为活化剂,通过高温碳化制备了一种氮掺杂多孔活性碳材料。通过BET、XRD、XPS、SEM和元素分析对催化剂进行表征,结果表明该催化剂具有高比表面积和高含氮量。研究了其在CO_(2)和氧化苯乙烯环加成反应中的催化性能,在无溶剂、温和条件下可高效催化转化CO_(2),最佳反应条件为1 bar、100℃和8 h,氧化苯乙烯转化率达到92.5%。

Nitrogen-doped porous activated carbon material was prepared by high temperature carbonization with nicotinic acid as carbon source and nitrogen source and potassium hydroxide as activator.The catalyst was characterized by BET,XRD,XPS,SEM and elemental analysis.The results showed that the catalyst has high specific surface area and high nitrogen content.The catalytic performance in the cycloaddition reaction of CO_(2)and styrene oxide was studied.Under the solvent free and mild conditions,the catalytic conversionof CO_(2)was efficient.The optimal reaction conditions were 1 bar,100℃and 8 h,and the conversion rate of styrene oxide reached 92.5%.