SO3H-bearing mesoporous carbon with highly selective catalysis
SO3H-bearing mesoporous carbon with highly selective catalysis
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DOI：
10.1016/j.micromeso.2011.03.028
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发表时间：
2011-09
影响因子：
5.2
通讯作者：
Satoshi Suganuma;K. Nakajima;M. Kitano;H. Kato;Asako Tamura;H. Kondo;S. Yanagawa;S. Hayashi;M. Hara
中科院分区：
文献类型：
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作者：
Satoshi Suganuma;K. Nakajima;M. Kitano;H. Kato;Asako Tamura;H. Kondo;S. Yanagawa;S. Hayashi;M. Hara
研究了一种新型的含SO 3 H的介孔碳材料作为多相催化剂。间苯二酚-甲醛树脂在773 K下碳化，然后磺化，得到由具有高密度SO 3 H（0.9 mmol g−1）和酚OH（2.0 mmol g−1）基团的石墨烯组成的无定形碳。中孔碳由于均匀的中孔而具有大的表面积（433 m2 g-1）（约100 m2）。10 nm）对α-甲基苯乙烯（AMS）的选择性二聚反应具有显著的催化性能，不饱和AMS二聚体的选择性超过99%。这种催化作用不仅归因于基于大介孔性的大表面积，而且还归因于防止分子内Friedel-Crafts烷基化。
A SO3H-bearing mesoporous carbon material was investigated as a new type of heterogeneous catalyst. Carbonization of resorcinol–formaldehyde resin at 773 K, followed by sulfonation results in amorphous carbon consisting of graphene with high densities of SO3H (0.9 mmol g−1) and phenolic OH (2.0 mmol g−1) groups. The mesoporous carbon that has a large surface area (433 m2g−1) due to uniform mesopores (ca. 10 nm) exhibits remarkable catalytic performance for the selective dimerization of α-methylstyrene (AMS); the selectivity for unsaturated AMS dimers exceeds 99%. This catalysis is attributed to not only the large surface area based on large mesoporosity, but also to preventing intramolecular Friedel–Crafts alkylation.