Pablo Beato
YOU?
Author Swipe
View article: X-ray absorption and diffraction computed tomography characterization of deactivation and coking in spray-dried ZSM-5/alumina catalysts
X-ray absorption and diffraction computed tomography characterization of deactivation and coking in spray-dried ZSM-5/alumina catalysts Open
We believe that the novelty of our manuscript can be expressed as: uses the highest spatially resolved techniques for shaped catalysts and highlights coke spillover from micropores to the external surface during MTH.
View article: Influence of Aluminum Distribution in Cu-MOR Systems on Methane-to-Methanol Conversion: A Combined Experimental and Theoretical Study
Influence of Aluminum Distribution in Cu-MOR Systems on Methane-to-Methanol Conversion: A Combined Experimental and Theoretical Study Open
A series of copper-mordenite (MOR) samples of different provenances were investigated in the methane-to-methanol (MTM) reaction after preparing their copper-exchanged analogues. Noticeable activity improvements were observed when biasing t…
View article: Reactivity of methoxy species towards methylation and oligomerization in Cu-zeolite systems
Reactivity of methoxy species towards methylation and oligomerization in Cu-zeolite systems Open
In pursuing a more sustainable future, innovative solutions have been a focal point in the chemical industry over the past decades. One of these possible solutions is the direct activation of lower alkanes, which would limit the need for l…
View article: Microcalorimetry on Cu-MCM-22 Reveals Structure–Activity Relationships for the Methane-to-Methanol Reaction
Microcalorimetry on Cu-MCM-22 Reveals Structure–Activity Relationships for the Methane-to-Methanol Reaction Open
With a stepwise mechanism for direct methane activation to methanol (MTM) over Cu-zeolites, it is possible to produce methanol with high selectivity. With this study, we apply adsorption/desorption experiments with n-propylamine, NH3, and …
View article: Cu-loaded zeolites enable the selective activation of ethane to ethylene at low temperatures and pressure
Cu-loaded zeolites enable the selective activation of ethane to ethylene at low temperatures and pressure Open
Sending ethane over Cu-oxo sites in zeolites allows for the selective formation of ethylene in a stepwise reaction at mild conditions. Experimental results indicate that the reaction proceeds via the formation of ethanol intermediates.
View article: Cation-induced speciation of port-size during mordenite zeolite synthesis
Cation-induced speciation of port-size during mordenite zeolite synthesis Open
Varying the inorganic cation in the synthesis of MOR zeolite results in crystalline material of varying port-size, ascertained by gaseous uptake of toluene. Al siting is found to be the cause of this and differences on catalytic behavior f…
View article: Understanding C–H activation in light alkanes over Cu-MOR zeolites by coupling advanced spectroscopy and temperature-programmed reduction experiments
Understanding C–H activation in light alkanes over Cu-MOR zeolites by coupling advanced spectroscopy and temperature-programmed reduction experiments Open
Temperature-programmed-reduction studies combined with advanced spectroscopy and data analysis methods shed light into the dynamic changes of Cu-speciation during light alkane selective oxidation over Cu-mordenite zeolites.
View article: Copper-zeolites Prepared by Solid-state Ion Exchange - Characterization and Evaluation for the Direct Conversion of Methane to Methanol
Copper-zeolites Prepared by Solid-state Ion Exchange - Characterization and Evaluation for the Direct Conversion of Methane to Methanol Open
Direct conversion of methane to methanol (MTM) over Cu-zeolites is a so-called “dream reaction” for the chemical industry. There is still a lot that can be done in order to optimize the reaction by e.g. achieving a deeper understanding of …
View article: Synthesis–Structure–Activity Relationship in Cu-MOR for Partial Methane Oxidation: Al Siting via Inorganic Structure-Directing Agents
Synthesis–Structure–Activity Relationship in Cu-MOR for Partial Methane Oxidation: Al Siting via Inorganic Structure-Directing Agents Open
In the pursuit of controlling the propensity of Cu-mordenite (MOR) for the selective oxidation of CH4, we take a closer look at intrinsic zeolite parameters. Via synthesis design, we vary the relative proportion of Al situated near the 8-r…
View article: Real-time regeneration of a working zeolite monitored <i>via operando</i> X-ray diffraction and crystallographic imaging: how coke flees the MFI framework
Real-time regeneration of a working zeolite monitored <i>via operando</i> X-ray diffraction and crystallographic imaging: how coke flees the MFI framework Open
X-ray diffraction is used to investigate regeneration of an H-ZSM-5 zeolite catalyst used in the conversion of methanol to hydrocarbons.
View article: Mapping the coke formation within a zeolite catalyst extrudate in space and time by operando computed X-ray diffraction tomography
Mapping the coke formation within a zeolite catalyst extrudate in space and time by operando computed X-ray diffraction tomography Open
We have used operando X-ray diffraction computed tomography (XRD-CT) analysed by rigorous crystallographic methods to reveal the behaviour of a zeolite/alumina based catalyst extrudate in the methanol-to-hydrocarbon reaction under working …
View article: From Catalytic Test Reaction to Modern Chemical Descriptors in Zeolite Catalysis Research
From Catalytic Test Reaction to Modern Chemical Descriptors in Zeolite Catalysis Research Open
For the successful implementation of catalysts in industrial processes, three overall goals are optimized: activity, selectivity, and stability. This review will address the role of chemical descriptors in aiding and guiding the developmen…
View article: Comparing the Nature of Active Sites in Cu-loaded SAPO-34 and SSZ-13 for the Direct Conversion of Methane to Methanol
Comparing the Nature of Active Sites in Cu-loaded SAPO-34 and SSZ-13 for the Direct Conversion of Methane to Methanol Open
On our route towards a more sustainable future, the use of stranded and underutilized natural gas to produce chemicals would be a great aid in mitigating climate change, due to the reduced CO2 emissions in comparison to using petroleum. In…
View article: Alkali Earth Metal Molybdates as Catalysts for the Selective Oxidation of Methanol to Formaldehyde—Selectivity, Activity, and Stability
Alkali Earth Metal Molybdates as Catalysts for the Selective Oxidation of Methanol to Formaldehyde—Selectivity, Activity, and Stability Open
Alkali earth metal molybdates (MMoO4, M = Mg, Ca, Sr, and Ba) were investigated as catalysts for the selective oxidation of methanol to formaldehyde in the search for more stable alternatives to the current industrial iron molybdate cataly…
View article: EXAFS wavelet transform analysis of Cu-MOR zeolites for the direct methane to methanol conversion
EXAFS wavelet transform analysis of Cu-MOR zeolites for the direct methane to methanol conversion Open
An innovative approach in EXAFS analysis and fitting using wavelet transforms reveals local structure and nuclearity of Cu-species in zeolites.
View article: Enhanced Catalytic Performance of Zn‐containing HZSM‐5 upon Selective Desilication in Ethane Dehydroaromatization Process
Enhanced Catalytic Performance of Zn‐containing HZSM‐5 upon Selective Desilication in Ethane Dehydroaromatization Process Open
The effect of introducing mesoporosity on the catalytic stability and selectivity of Zn‐containing ZSM‐5 catalysts was investigated for direct conversion of ethane to high‐value aromatics. Voids and mesopores were created in the zeolite (S…
View article: Deactivation of a CoMo Catalyst during Catalytic Hydropyrolysis of Biomass. Part 1. Product Distribution and Composition
Deactivation of a CoMo Catalyst during Catalytic Hydropyrolysis of Biomass. Part 1. Product Distribution and Composition Open
Deactivation of a sulfided CoMo/MgAl2O4 catalyst during catalytic hydropyrolysis of beech wood in a fluid bed reactor was studied. The stability of the catalyst was investigated by converting approximately 5 kg of biomass and collecting th…
View article: Deactivation of a CoMo Catalyst during Catalytic Hydropyrolysis of Biomass. Part 2. Characterization of the Spent Catalysts and Char
Deactivation of a CoMo Catalyst during Catalytic Hydropyrolysis of Biomass. Part 2. Characterization of the Spent Catalysts and Char Open
In this work sulfided CoMo/MgAl2O4 catalysts used in fluid bed catalytic hydropyrolysis for the conversion of biomass to liquid fuels were thoroughly characterized by Raman spectroscopy and scanning (transmission) electron microscopy toget…
View article: Zeolite Surface Methoxy Groups as Key Intermediates in the Stepwise Conversion of Methane to Methanol
Zeolite Surface Methoxy Groups as Key Intermediates in the Stepwise Conversion of Methane to Methanol Open
This contribution clarifies the overoxidation‐preventing key step in the methane‐to‐methanol (MTM) conversion over copper mordenite zeolites. We followed the methane‐to‐methanol conversion over copper mordenite zeolites by NMR spectroscopy…
View article: <i>Operando</i> XAS/XRD and Raman Spectroscopic Study of Structural Changes of the Iron Molybdate Catalyst during Selective Oxidation of Methanol
<i>Operando</i> XAS/XRD and Raman Spectroscopic Study of Structural Changes of the Iron Molybdate Catalyst during Selective Oxidation of Methanol Open
The structural changes of an iron molybdate/molybdenum oxide (Mo/Fe=2.0) catalyst for the selective oxidation of methanol to formaldehyde were studied using combined operando X‐ray absorption spectroscopy (XAS) and X‐ray diffraction (XRD) …
View article: Collective action of water molecules in zeolite dealumination
Collective action of water molecules in zeolite dealumination Open
Water molecules cooperate to facilitate Al–O bond hydrolysis during zeolite dealumination at real steaming conditions.
View article: Synthesis of ZSM-23 (MTT) zeolites with different crystal morphology and intergrowths: effects on the catalytic performance in the conversion of methanol to hydrocarbons
Synthesis of ZSM-23 (MTT) zeolites with different crystal morphology and intergrowths: effects on the catalytic performance in the conversion of methanol to hydrocarbons Open
A series of zeolite ZSM-23 samples prepared with different organic structure-directing agents, gave rise to crystalline phases, which show a large variety of particle dimensions.
View article: Temperature-programmed reduction with NO as a characterization of active Cu in Cu-CHA catalysts for NH<sub>3</sub>-SCR
Temperature-programmed reduction with NO as a characterization of active Cu in Cu-CHA catalysts for NH<sub>3</sub>-SCR Open
The NH3-SCR activity of Cu-CHA catalysts is related to the ability to form [CuII(NO3)]+.