High-silica nanocrystalline Beta zeolites: efficient synthesis and catalytic application
作者:Raquel Martínez-Franco、Cecilia Paris、Marta E. Martínez-Armero、Cristina Martínez、Manuel Moliner、Avelino Corma
DOI:10.1039/c5sc03019f
日期:——
An efficient synthesis methodology to obtain homogeneous nanosized high-silica Beta zeolites (∼10–20 nm) with high solid yields (above 95%) using simple alkyl-substituted flexible dicationic OSDAs is described.
Simple organic structure directing agents for synthesizing nanocrystalline zeolites
作者:Eva M. Gallego、Cecilia Paris、M. Rocío Díaz-Rey、Marta E. Martínez-Armero、Joaquín Martínez-Triguero、Cristina Martínez、Manuel Moliner、Avelino Corma
DOI:10.1039/c7sc02858j
日期:——
nanosized ZSM-5 and beta zeolites have been evaluated for different chemical reactions, including methanol-to-olefins (MTO) in the case of ZSM-5, and alkylation of benzene with propylene to obtain cumene and oligomerization of light olefins to liquid fuels in the case of beta, observing in all cases improved catalytic activity and product selectivity towards target products when compared to related catalysts
Thermophysical and Electrochemical Properties of Ethereal Functionalised Cyclic Alkylammonium-based Ionic Liquids as Potential Electrolytes for Electrochemical Applications
作者:Alex R. Neale、Sinead Murphy、Peter Goodrich、Christopher Hardacre、Johan Jacquemin
DOI:10.1002/cphc.201700246
日期:2017.8.5
piperidinium and azepanium cations bearing the bis[(trifluoromethyl)sulfonyl]imide, [TFSI]−, anion were synthesized and characterized. Their physicochemical properties such as density, viscosity and electrolytic conductivity, and thermal properties including phase transition behaviour and decomposition temperature have been measured. All of the ILs showed lowmelting point, low viscosity and good conductivity