Atomic-Insight into Zeolite Catalyst Forming—an Advanced NMR Study
نویسندگان
چکیده
The main goal of this study is to understand, at the atomic level, chemical interactions occurring between an active phase, a FAU zeolite in case, and its binder during catalyst forming. This unit operation critical step scale up commercialization but has not received attention it deserves from academia. Herein, we present level insight into solid-state chemistry taking place extrusion process by advanced NMR spectroscopy techniques (indirect 27Al{1H}DNP MAS 27Al-{29Si} J-HMQC). In particular, we: (i) elucidate reactions type Y (Si/Al = 2.3) (pseudo-boehmite), producing new sites different than those either or (ii) determine location these combination DNP build-up time (TDNP) extracted {1H}–27Al saturation-recovery cross polarization experiments 2D heteronuclear 29Si–27Al NMR. illustrates power nature newly created forming provides key further fine-tune industrial catalysts.
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ژورنال
عنوان ژورنال: Journal of Physical Chemistry C
سال: 2021
ISSN: ['1932-7455', '1932-7447']
DOI: https://doi.org/10.1021/acs.jpcc.1c05501