Carbon deposit analysis in catalyst deactivation, regeneration, and rejuvenation
Hydrocarbon conversion catalysts suffer from deactivation by deposition or formation of
carbon deposits. Carbon deposit formation is thermodynamically favored above 350° C …
carbon deposits. Carbon deposit formation is thermodynamically favored above 350° C …
Analysis and control of acid sites in zeolites
A Palčić, V Valtchev - Applied Catalysis A: General, 2020 - Elsevier
The exceptional catalytic performance of zeolites is due to the presence of active sites in a
shape-selective environment, ie, in micropores with molecular dimensions. The present …
shape-selective environment, ie, in micropores with molecular dimensions. The present …
[HTML][HTML] Molecular elucidating of an unusual growth mechanism for polycyclic aromatic hydrocarbons in confined space
Extension and clustering of polycyclic aromatic hydrocarbons (PAHs) are key mechanistic
steps for coking and deactivation in catalysis reactions. However, no unambiguous …
steps for coking and deactivation in catalysis reactions. However, no unambiguous …
[HTML][HTML] Use of solid-state NMR spectroscopy for investigating polysaccharide-based hydrogels: A review
MEH El Nokab, PC Van Der Wel - Carbohydrate polymers, 2020 - Elsevier
Hydrogels find application in many areas of technology and research due to their ability to
combine responsiveness and robustness. A detailed understanding of their molecular …
combine responsiveness and robustness. A detailed understanding of their molecular …
Down the microporous rabbit hole of silicoaluminophosphates: Recent developments on synthesis, characterization, and catalytic applications
ME Potter - ACS Catalysis, 2020 - ACS Publications
Since their invention silicoaluminophosphates (SAPOs) have become by far the most
researched class of aluminophosphates due to their commercial use as solid acid catalysts …
researched class of aluminophosphates due to their commercial use as solid acid catalysts …
[HTML][HTML] Acidity enhancement through synergy of penta-and tetra-coordinated aluminum species in amorphous silica networks
Amorphous silica-aluminas (ASAs) are widely used in acid-catalyzed CH activation
reactions and biomass conversions in large scale, which can be promoted by increasing the …
reactions and biomass conversions in large scale, which can be promoted by increasing the …
[HTML][HTML] Interpreting nanovoids in atom probe tomography data for accurate local compositional measurements
Quantifying chemical compositions around nanovoids is a fundamental task for research
and development of various materials. Atom probe tomography (APT) and scanning …
and development of various materials. Atom probe tomography (APT) and scanning …
Opportunities in catalysis over metal-zeotypes enabled by descriptions of active centers beyond their binding site
Active centers in porous solid catalysts are multifaceted in structure, comprised of primary
sites that bind intermediates, secondary environments that confine intermediates and …
sites that bind intermediates, secondary environments that confine intermediates and …
[HTML][HTML] Nano-scale insights regarding coke formation in zeolite SSZ-13 subject to the methanol-to-hydrocarbons reaction
The methanol-to-hydrocarbons (MTH) process, commonly catalyzed by zeolites, is of great
commercial interest and therefore widely studied both in industry and academia. However …
commercial interest and therefore widely studied both in industry and academia. However …
[HTML][HTML] Coated sulfated zirconia/SAPO-34 for the direct conversion of CO 2 to light olefins
The conversion of CO2 to light olefins via bifunctional catalysts (ie metal oxides/zeolites) is a
promising approach to tackle CO2 emissions and, at the same time, reduce fossil-fuel …
promising approach to tackle CO2 emissions and, at the same time, reduce fossil-fuel …