… paired lattice sites, which are stable even at distances below 5 Å. … hydride shift, and the
nature of the active site in Sn-BEA, an open … In this work, the authors suggest that the active sites …

… of active sites in zeolite frameworks. It is focused on the … of zeolite Brønsted sites may occur,
and Lewis acid sites with Si … The two most frequent types of Al arrangements are paired (…

… the Lewis acidity of active sites in Lewis acid zeolites is essential for designing materials to
catalyze … Pyridine adsorption coupled with FTIR spectroscopy has been traditionally used to …

… The reactivity of zeolite catalysts can be tailored by … of versatile Brønsted acid, Lewis acid
and redox-active catalytic sites. … possibility of forming paired Lewis acid sites capable of concert …

… , and ion-paired with superacidic sites. For the latter, the … and Lewis acid centers play a crucial
role during catalytic reactions… /Lewis acid synergy observed in dealuminated H–Y zeolites …

… water molecules and active sites on catalysts exhibit distinct … Brønsted and Lewis acidic
zeolites will be the focus of this … Ion-paired hydronium ions with higher protonation degree and …

… well-defined metal active sites within zeolites and advanced characterization … Lewis acid
sites can accept electron pairs from substrates without generating a charge imbalance in zeolite …

… active heteroatom precursors allows one to synthesize zeolite catalysts with unprecedented
Lewis acid site (… , and in catalytic tests, this leads to materials so rich in active sites that they …

… zeolite, and requires pairs … containing no Lewis acid sites [154]. In general Kazansky and
co-workers feel the many different types of Lewis acid sites, both within and outside the zeolitic …

… because they can confine Lewis acidic sites within hydrophobic voids to … sites in Sn-zeotypes
has been proposed, including (i) paired Sn sites in six-membered rings of Beta zeolites…