نتایج جستجو برای: zeolite nay
تعداد نتایج: 9508 فیلتر نتایج به سال:
[*] Dr. F. Bonino, Dr. A. Damin, Prof. Dr. S. Bordiga, Prof. Dr. A. Zecchina Department of IFM Chemistry and NIS Centre of Excellence Universit& di Torino Via P. Giuria 7, 10125 Torino (Italy) Fax: (+39)011-670-7855 E-mail: [email protected] and INSTM UdR di Torino (Italy) Prof. Dr. M. Selva, Prof. Dr. P. Tundo Department of Environmental Science Universit& Ca’Foscari Dorsoduro 2137, 30...
The structural transformation of metal-containing zeolite catalysts subjected to mechanical compression is often disregarded in the preparation catalysts. Herein, impact on catalytic active sites Pd/NaY responsible for indirect oxidative carbonylation methanol dimethyl carbonate (DMC) has been disclosed. DMC selectivity was found strongly depend mechanical-pressure applied, as pressure controll...
Adoption of new management techniques that improve soil water storage and soil N plant availability yet limit N leaching may help improve environmental quality. A benchtop study was conducted to determine the influence of a single urea fertilizer rate (224 kg N ha) applied with band or fully mixed zeolite (clinoptilolite) application rates (up to 90 Mg ha) on NH4-N and NO3-N concentrations in a...
Zeolite 4A, synthetic silicate, has been shown to exhibit diverse biological activities such as anti-cancer and anti-oxidant activity. In the present study, we report that the zeolite 4A may improve skin-whitening. We found that zeolite 4A inhibited melanin production in a dose-dependent manner, which has not cytotoxicity. Zeolite 4A also inhibited alpha-melanocyte-stimulating hormone (alpha-MS...
Temperature-dependent zeolite synthesis has revealed a unique surface morphology, surface area and pore size which influence the immobilization of urease on gold electrode supports for biosensor fabrication. XRD characterization has identified zeolite X (Na) at all crystallization temperatures tested. However, N₂ adsorption and desorption results showed a pore size and pore volume of zeolite X ...
N-Arylisatins are synthesized in high yield in shorter reaction time by the reaction of 2-oxo2-(Arylamino)acetates and arynes using NaY heterogeneous catalyst under microwave irradiations.
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