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31P NMR Chemical Shifts of Phosphorus Probes as Reliable and Practical Acidity Scales for Solid and Liquid Catalysts
A Zheng, SB Liu, F Deng - Chemical reviews, 2017 - ACS Publications
Acid–base catalytic reaction, either in heterogeneous or homogeneous systems, is one of
the most important chemical reactions that has provoked a wide variety of industrial catalytic …
the most important chemical reactions that has provoked a wide variety of industrial catalytic …
Combined solid-state NMR, FT-IR and computational studies on layered and porous materials
Understanding the structure–property relationship of solids is of utmost relevance for
efficient chemical processes and technological applications in industries. This contribution …
efficient chemical processes and technological applications in industries. This contribution …
Insights into structure–performance relationship in the catalytic cracking of high density polyethylene
Zeolite is considered a promising catalyst for plastic cracking because of its well-defined
acid sites, high product selectivity, and outstanding stability. The relationship between …
acid sites, high product selectivity, and outstanding stability. The relationship between …
High Zn/Al ratios enhance dehydrogenation vs hydrogen transfer reactions of Zn-ZSM-5 catalytic systems in methanol conversion to aromatics
I Pinilla-Herrero, E Borfecchia, J Holzinger… - Journal of catalysis, 2018 - Elsevier
Two series of Zn-ZSM-5 catalysts were prepared by ion exchanging two commercial zeolites
with different Si/Al ratios (40 and 15) with increasing Zn loadings. The nature of the Zn sites …
with different Si/Al ratios (40 and 15) with increasing Zn loadings. The nature of the Zn sites …
Quantitatively probing the Al distribution in zeolites
A Vjunov, JL Fulton, T Huthwelker, S Pin… - Journal of the …, 2014 - ACS Publications
The degree of substitution of Si4+ by Al3+ in the oxygen-terminated tetrahedra (Al T-sites) of
zeolites determines the concentration of ion-exchange and Brønsted acid sites. Because the …
zeolites determines the concentration of ion-exchange and Brønsted acid sites. Because the …
Understanding the early stages of the methanol-to-olefin conversion on H-SAPO-34
Little is known on the early stages of the methanol-to-olefin (MTO) conversion over H-SAPO-
34, before the steady-state with highly active polymethylbenzenium cations as most …
34, before the steady-state with highly active polymethylbenzenium cations as most …
Precise Structural and Dynamical Details in Zeolites Revealed by Coupling-Edited 1H–17O Double Resonance NMR Spectroscopy
Despite the extensive industrial and research interests in zeolites, their intrinsic catalytic
nature is not fully understood due to the complexity of the hydroxyl-aluminum moieties. 17O …
nature is not fully understood due to the complexity of the hydroxyl-aluminum moieties. 17O …
A mechanistic study of methanol-to-aromatics reaction over Ga-modified ZSM-5 zeolites: understanding the dehydrogenation process
P Gao, J Xu, G Qi, C Wang, Q Wang, Y Zhao… - ACS …, 2018 - ACS Publications
The methanol-to-aromatics (MTA) reaction was investigated on Ga-modified ZSM-5 zeolites
(Ga/ZSM-5). As revealed by 71Ga and 1H solid-state NMR and FT-IR of pyridine adsorption …
(Ga/ZSM-5). As revealed by 71Ga and 1H solid-state NMR and FT-IR of pyridine adsorption …
Mechanistic insights into one-step catalytic conversion of ethanol to butadiene over bifunctional Zn–Y/beta zeolite
Bifunctional Zn–Y/Beta catalyst was applied in the reaction mechanism study of the ethanol
to butadiene conversion to clarify the roles of Zn and Y functional sites in each individual …
to butadiene conversion to clarify the roles of Zn and Y functional sites in each individual …
Spectroscopic signature of Lewis acidic framework and extraframework Sn sites in beta zeolites
A variety of Sn-containing Beta zeolites possessing framework or extraframework Sn sites
were prepared by a two-step postsynthesis procedure. The nature of these Sn species was …
were prepared by a two-step postsynthesis procedure. The nature of these Sn species was …