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五配位铝强化硅铝固体酸的固体核磁共振研究
王子春1,黄骏2,姜怡娇1,*()
Solid-State NMR Spectroscopy Studies of Enhanced Acidity of Silica-Aluminas Based on Penta-Coordinated Aluminum Species
Zi-chun WANG1,Jun HUANG2,Yi-jiao JIANG1,*()

图10. (a) 以二甲苯(★)及甲醇/乙酸(体积比1:1)混合溶剂(■)合成的ASAs中AlV含量(虚线)与B酸浓度(实线)间的关系;(b) ASAs催化苯甲酰甲醛与乙醇反应的实验数据比较,PG转化率(CPG),EM选择性(SEM),反应速率k,转换频率(TOFs).数据均来自参考文献[9].反应条件见图 9

Fig.10. (a) Correlation between the concentration of Brønsted acidic OH groups (BAS, solid line) and AlV species (dashed line) as a function of the Al content in dehydrated FSP ASAs prepared by using methanol/acetic acid (1:1 by volume, ■) and xylene (★), respectively; (b) Catalytic conversion of PG in ethanol. The PG conversion (CPG), EM selectivity (SEM), reaction rates k, and TOFs were obtained from Ref. [9], respectively. Same reaction conditions as shown in Fig. 9