In an article, author is Mo, Zhousheng, once mentioned the application of 33252-30-1, Name is 2-Chloroisonicotinonitrile, molecular formula is C6H3ClN2, molecular weight is 138.5544, MDL number is MFCD00174318, category is pyridine-derivatives. Now introduce a scientific discovery about this category, Recommanded Product: 2-Chloroisonicotinonitrile.
Effect of Content of Cerium Ion on Bronsted-Acid-Catalyzed Reaction of Thiophene over CeY Zeolite Studied by In Situ FTIR Spectroscopy
With NaY zeolite as the raw material, CeY zeolites with different content of Ce ions were prepared by liquid phase ion exchange (LPIE) method. Their chemical compositions were measured by X-ray fluorescence spectrometry (XRF) and in situ Fourier transform infrared spectroscopy (FTIR) techniques. Temperature-programmed desorption of ammonia (NH3-TPD) and FTIR spectra of pyridine (Py-FTIR) techniques were used to characterize acidity of CeY zeolites. With thiophene (TP, C4H4S) as probe molecule, adsorption and reaction of TP over CeY zeolites were researched by using in situ FTIR spectroscopy. Finally, it can be found that activity of Bronsted(B)-acid-catalyzed reaction of TP firstly increases and then has little change with the increase of concentration of Ce(NO3)(3) solution (c), while increases with the increase of the exchange times by a combination of adsorption and reaction of TP over CeY zeolite with acidity of CeY zeolite and with location of Ce ion in CeY zeolite. Especially, the sulfur-metal (S-M) interaction between TP and Ce ion located in the supercage exhibits more influence than B-acid-catalyzed reaction of TP on adsorption desulfurization of CeY zeolite.
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Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem