New advances in using Raman spectroscopy for the characterization of catalysts and catalytic reactions

C Hess - Chemical Society Reviews, 2021 - pubs.rsc.org
Gaining insight into the mode of operation of heterogeneous catalysts is of great scientific
and economic interest. Raman spectroscopy has proven its potential as a powerful …

Probing zeolites by vibrational spectroscopies

S Bordiga, C Lamberti, F Bonino, A Travert… - Chemical Society …, 2015 - pubs.rsc.org
This review addresses the most relevant aspects of vibrational spectroscopies (IR, Raman
and INS) applied to zeolites and zeotype materials. Surface Brønsted and Lewis acidity and …

Going beyond the vertical approximation with time‐dependent density functional theory

F Santoro, D Jacquemin - Wiley Interdisciplinary Reviews …, 2016 - Wiley Online Library
Since two decades, time‐dependent density functional theory (TD‐DFT) has been in the
limelight due to its noteworthy efficiency. Indeed, in many cases, TD‐DFT provides accurate …

A straightforward descriptor for the deactivation of zeolite catalyst H-ZSM-5

D Rojo-Gama, M Nielsen, DS Wragg, M Dyballa… - Acs …, 2017 - ACS Publications
ZSM-5 is a widely used zeolite catalyst and is employed industrially for the methanol to
gasoline (MTG) process. Even so, deactivation of ZSM-5 by coke formation constitutes a …

Multifunctional Catalyst Combination for the Direct Conversion of CO2 to Propane

A Ramirez, P Ticali, D Salusso, T Cordero-Lanzac… - Jacs Au, 2021 - ACS Publications
The production of carbon-rich hydrocarbons via CO2 valorization is essential for the
transition to renewable, non-fossil-fuel-based energy sources. However, most of the recent …

Structure–deactivation relationships in zeolites during the methanol–to-hydrocarbons reaction: Complementary assessments of the coke content

D Rojo-Gama, M Signorile, F Bonino, S Bordiga… - Journal of …, 2017 - Elsevier
Catalyst deactivation during the methanol-to-hydrocarbons (MTH) reaction was investigated
using five different commercially prepared microporous catalysts, including Mordenite, ZSM …

Investigating the coke formation mechanism of H-ZSM-5 during methanol dehydration using operando UV–Raman spectroscopy

H An, F Zhang, Z Guan, X Liu, F Fan, C Li - ACS Catalysis, 2018 - ACS Publications
Methanol dehydration on solid acid catalysts is a fundamental step in many industrial
chemical processes, such as methanol to dimethyl ether (MTD) and methanol to olefin …

[HTML][HTML] Controlling diffusion resistance, selectivity and deactivation of ZSM-5 catalysts by crystal thickness and defects

J Hedlund, M Zhou, A Faisal, OGW Öhrman, V Finelli… - Journal of …, 2022 - Elsevier
A systematic investigation of two sets of defect free and defective ZSM-5 crystals with
controlled thickness (T) between 30 and 400 nm and of their performances in methanol …

Small ZSM-5 crystals with low defect density as an effective catalyst for conversion of methanol to hydrocarbons

M Grahn, A Faisal, OGW Öhrman, M Zhou, M Signorile… - Catalysis Today, 2020 - Elsevier
This work presents the synthesis of nearly defect-free ZSM-5 nanosized crystals, prepared in
fluoride medium by seeding with silicalite-1. This material was carefully characterized and its …

Fine-tuning the surface acidity of hierarchical zeolite composites for methanol-to-olefins (MTO) reaction

D Suttipat, K Saenluang, W Wannapakdee… - Fuel, 2021 - Elsevier
The zeolite nanosheet composites, containing a high acidic density ZSM-5 and weak-acidic
Silicalite-1 nanosheets (Si-NS) acting as a core and a shell, respectively, have been …