RTH-type zeolites are promising catalytic materials for applications that include the important methanol-to-olefins (MTO) and NOX reduction reactions. Here, RTH-type zeolites are prepared using a wide-range of imidazolium-based, cationic organic structure directing agents (OSDAs), that greatly expand the methodologies and compositions that can be used to synthesize these materials. The abilities of the OSDAs to produce RTH-type zeolites agree well with results from molecular modeling studies of predicted stabilization energies of the OSDAs in the RTH framework. The RTH-type zeolites are stable to steaming up to 900 °C and are shown to be active MTO catalysts.
RTH型
沸石是有前途的催化材料,适用于包括重要的
甲醇转烯(
MTO)和氮氧化物(NOX)还原反应在内的应用。这里,使用广泛的
咪唑鎓基阳离子有机结构导向剂(O
SDAs)制备RTH型
沸石,这大大扩展了合成这些材料的 methodologies 和成分。O
SDAs 产生 RTH 型
沸石的能力与分子模拟研究中预计的 O
SDAs 在 RTH 框架中的稳定化能结果相符。RTH 型
沸石在蒸汽环境中稳定至 900 °C,并且被证明是有效的
MTO 催化剂。