Synthesis of bifunctional catalysts Al-SBA-15-NH₂ with high aluminum content and the catalytic application for different one-pot reactions

详细信息    查看全文

• 作者：Chunhua Wang ; Fanpeng Shang ; Xiaofang Yu ; Jingqi Guan ; ^{guanjq@jlu.edu.cn} ; Qiubin Kan ; ^{qkan@mail.jlu.edu.cn}
• 关键词：pH-adjusting ; Acid and base ; Mesoporous ; One-pot reaction
• 刊名：Applied Surface Science
• 出版年：2012
• 出版时间：1 July, 2012
• 年：2012
• 卷：258
• 期：18
• 页码：6846-6852
• 全文大小：896 K

文摘

Acid-base bifunctional mesoporous catalysts Al-SBA-15-NH₂ containing high content of Al and organic amine functional groups have been synthesized through the ¡°pH-adjusting?method. The materials were characterized by X-ray diffraction (XRD), scanning electron micrographs (SEM), transmission electron micrographs (TEM), Fourier-transform infrared spectroscopy (FTIR), IR spectra of pyridine adsorption, NH₃-TPD and elemental analysis. Catalytic results showed that 6-Al-SBA-15-NH₂ (Si/Al = 6 mol % ) was more active than 10-Al-SBA-15-NH₂ (Si/Al = 10 mol % ) in one-pot deacetalization-Knoevenagel and deacetalization-nitroaldol (Henry) reactions.