Results 121 to 130 of about 20,573,428 (292)

Hierarchical Fe/ZSM-5 with improved catalytic performance in hydroxylation of benzene with nitrous oxide

open access: yes, 2009
Fe/ZSM-5 zeolite catalysts are promising for the production of adipic acid using nitrous oxide, which is a by-product in industry. Compared with the environmentally stressing three step cumene process, Fe/ZSM-5 based catalytic system is green and atom ...
KOEKKOEK   +6 more
core  

Rational Design of a Novel Core–Shell Cu-ZSM-5@Ru/S‑1 Tandem Catalyst for the Catalytic Combustion of Dichloromethane

open access: yes
To achieve a well synergistic effect between dissociative adsorption and deep oxidation during the dichloromethane (DCM) catalytic combustion process, a novel tandem catalyst, Cu-ZSM-5@Ru/S-1, was developed by rationally designing the catalyst structure.
Yaoyu Zhang (524584)   +4 more
core   +1 more source

A new template-free route to mesoporous ZSM-5 microspheres

open access: yes, 2008
Zeolites have been applied widely on catalytic processes because their intricate micropores provide different types of shape selectivity1. However, their small pore size brings diffusion and mass transfer limitations, which can be solved by using zeolite
Weishen Yang   +5 more
core  

Síntesis y caracterización de materiales aluminosilicatos compuestos ZSM-5/MCM-41 [PDF]

open access: yesAvances en Química, 2010
molecular sieves ZSM-5/AlMCM-41 were synthesized by hydrothermal crystallization, under synthesis conditions employed for pure phases. Solids were characterized by several techniques.
Pedro Pérez   +3 more
doaj  

Bis(μ-oxo)dicopper in Cu-ZSM-5 and Its Role in the Decomposition of NO:  A Combined in Situ XAFS, UV−Vis−Near-IR, and Kinetic Study

open access: yes, 2016
In situ XAFS combined with UV−vis−near-IR spectroscopy are used to identify the active site in copper-loaded ZSM-5 responsible for the catalytic decomposition of NO.
Jeroen A. van Bokhoven (1261200)   +4 more
core   +1 more source

Preparação do sistema Fe2O3/ZSM-5 para uso como catalisador na reação foto-Fenton

open access: yesCerâmica
Resumo Este trabalho objetivou a preparação da zeólita ZSM-5 suportada com nanopartículas de óxido de ferro para uso como catalisador na degradação de um poluente orgânico em solução aquosa a partir do processo foto-Fenton. A zeólita foi preparada usando
J. S. de Oliveira   +4 more
doaj   +1 more source

EPR spectroscopy and DFT calculations of the g tensors of {VO}1/ZSM-5, {CuNO}11/ZSM-5 and {NaNO}1/ZSM-5 intrazeolitic complexes

open access: yes, 2005
The relation between the structure and magnetic properties of VO 2+ ( d 1 ) species and nitrosyl adducts of Cu + ( d 10 ) and Na + ( d o ) ions exchanged in the ZSM-5 zeolite was studied by DFT and EPR methods. Electronic g tensors were predicted using the spin-unrestricted zero order relativistic approximation (ZORA) and the scalar ...
Pietrzyk, Piotr, Sojka, Zbigniew
openaire   +2 more sources

Catalytic reduction of NO over in situ synthesized Ir/ZSM-5 monoliths

open access: yes, 2001
The catalytic performance of Ir-based catalysts was investigated for the reduction of NO under lean-burn conditions over binderless Ir/ZSM-5 monoliths, which were prepared by a vapor phase transport (VPT) technique. The catalytic activity was found to be
Wang, AQ   +4 more
core  

Optical Investigations of Intergrowth Effects in the Zeolite Catalysts ZSM-5 and ZSM-8

open access: yes, 1994
X-ray precession photographs and optical investigations of TPA-ZSM-5 (silicalite) and TEA-ZSM-8 zeolites reveal that ZSM-8 consists of two interpenetrating species rotated by 90° round the crystallographic c axis similarly to ZSM-5.
Fischer, R.   +3 more
core   +1 more source

Cu-ZSM-5, Cu-ZSM-11, and Cu-ZSM-12 Catalysts for Direct NO Decomposition

open access: yes, 2006
Cu-ZSM-5 has for many years been recognized as a unique catalyst for direct NO decomposition. Here, it is discovered that both Cu-ZSM-11 and Cu-ZSM-12 are about twice as active as Cu-ZSM-5. This difference is attributed to the active sites located almost
Christiansen, Sofie E.   +5 more
core   +1 more source

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