作者:Rajkumar Kore、R. Sridharkrishna、Rajendra Srivastava
DOI:10.1039/c2ra22531j
日期:——
Hierarchical Beta zeolite was prepared using piperidine based structure directing agents having at least two ammonium groups in their structure. Materials exhibited very high surface area (≈1050 m2 g−1), pore volume (2.7 mL g−1), and catalytic activity hitherto reported in the literature. A density functional theoretical study shows that a suitable special orientation of piperidine rings in the structure directing agents is responsible for the formation of hierarchical Beta.
使用结构中具有至少两个铵基团的基于哌啶的结构导向剂制备多级β沸石。材料表现出非常高的表面积(约 1050 m2 g−1)、孔体积(2.7 mL g−1)和迄今文献中报道的催化活性。密度泛函理论研究表明,结构导向剂中哌啶环的适当特殊取向是分级β的形成的原因。