Results 61 to 70 of about 83,093,681 (218)
MOFs can serve as effective proton conductors owing to their porous structures and well‐defined channels. In this study, the protic ionic liquid [Dema][TfO] is introduced into ZIF‐8 cages. The confined [Dema][TfO] can transfer between adjacent ZIF‐8 cages, inducing cage expansion through the swing effect.
Wen Yang +7 more
wiley +1 more source
Experimental methods in chemical engineering: Temperature‐programmed oxidation—TPO
Abstract Temperature‐programmed oxidation (TPO) probes the oxidative capacity and redox properties of solid materials—catalysts, metal oxides, perovskites, and carbonaceous deposits. It identifies coke type, distribution, and reactivity. TPO instruments pass an oxidizing gas (diluted O2, air, or less commonly N2O, CO2, or CO) through a micro‐reactor ...
Gholamreza Roohollahi +7 more
wiley +1 more source
Optimizing the dispersion of ZSM-5 zeolite-based cracking active components is essential for enhancing the performance of FCC catalysts in cracking macromolecules.
Fei Wang +5 more
doaj +1 more source
Theoretical Investigation of Ethane‐to‐Aromatics Conversion Over [GaH2]‐ZSM‐5
DFT calculations with two ZSM‐5 cluster models describe the complete ethane‐to‐aromatics cycle over [GaH2]+, which shows a lower maximum barrier than Ga+ and avoids the severe regeneration penalty of [GaO]+. Irrespective of cluster size, C6 ring closure, rather than the final dehydrogenation to benzene, is the turnover‐frequency‐determining transition ...
João V. F. Costa +7 more
wiley +1 more source
Plastic catalytic degradation study of the role of external catalytic surface, catalytic reusability and temperature effects [PDF]
Technological advancements over the last century have lead large and continuous growth in the output of plastic materials. This exponential growth has created public concern over the environmental impact caused by the polymeric waste produced. These have
Kpere-Daibo, T.S.
core
The combined alkali-steam treatment was employed to prepare the ZSM-5 zeolite possessing the micro-mesopore hierarchical structure and proper acidity simultaneously.
Liu, Shenglin +8 more
core +1 more source
Keggin-type molybdovanadophosphoric acids loaded on ZSM-5 zeolite as a bifunctional catalyst for oxidehydration of glycerol [PDF]
Glycerol is a promising renewable feedstock for the manufacture of C3 derivatives. We investigated the one-pass oxidehydrarion of glycerol through the dehydration of glycerol into acrolein, followed by the oxidation of acrolein.
ツジ, エツシ +25 more
core +1 more source
Cu‐ERI Zeolite Catalysts With Tailored Properties for the Removal of N‐Containing Compounds
The study found that Cu‐ERI zeolites, especially Cu‐ERI_2, show strong low‐temperature NH3‐SCR‐DeNOx activity and high N2 selectivity because they contain highly active, easily reducible Cu2+ species; Cu‐ERI_2 also facilitates NH3 activation and preferentially consumes NH3 adsorbed on Brønsted acid sites during NO reduction.
Magdalena Jabłońska +7 more
wiley +1 more source
Engineering the Fe coordination environment using bio‐inspired amino‐acid ligands within a zeolite Y framework promotes selective methane‐to‐methanol conversion under mild reaction conditions. ABSTRACT The direct conversion of methane to methanol remains a long‐standing catalytic challenge due to the inertness of C─H bond and the susceptibility of ...
Harshita Harshita +3 more
wiley +1 more source
Air Stability of Sulfide Solid Electrolytes: From Theoretical Insights to Practical Solutions
This paper reviews research progress on the air stability of SSEs, covering their instability mechanisms and modification strategies, while outlining core challenges and future directions for practical applications. Sulfide solid electrolytes are pivotal for enabling high‐performance all‐solid‐state batteries due to their high ionic conductivity and ...
Hongbing Ding +10 more
wiley +1 more source

