Awesome and Easy Science Experiments about 143468-13-7

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 143468-13-7. Product Details of 143468-13-7.

Chemistry is an experimental science, Product Details of 143468-13-7, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 143468-13-7, Name is 6-Bromo-1H-pyrrolo[2,3-b]pyridine, molecular formula is C7H5BrN2, belongs to pyridine-derivatives compound. In a document, author is Li, Hui.

Efficient heterogeneous acid synthesis and stability enhancement of UiO-66 impregnated with ammonium sulfate for biodiesel production

Sulfated zirconia is a potential heterogeneous acid in catalyzing esterification for biodiesel production. While the catalytic stability is still a challenge during successive batch experiment due to the serious leaching of active site. To address this defect, UiO-66 and ammonium sulfate were employed to synthesize the high efficient acid catalyst for biodiesel production. Catalyst preparation factors and esterification parameters were further investigated to obtain the optimal conditions. Based on these, this study creatively adopted ‘two-stage calcination’ to enhance the catalytic stability. In order to elucidate impact of the second calcination, catalysts were characterized by X-ray diffraction (XRD), thermogravimetry-differential thermogravimetry (TG-DTG), N-2 absorption-desorption, Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), pyridine absorption-Fourier transform infrared spectroscopy (Py-FTIR), Boehm-titration method, scanning electron microscope (SEM), and energy disperse spectroscopy (EDS). Results indicated that the catalytic activity of catalyst calcined under nitrogen atmosphere (UiO-66/SFN) is higher than that calcined under air atmosphere (UiO-66/SAN). The satisfying oleic acid conversion to biodiesel of 96.2% was achieved by UiO-66/SFN with catalyst amount of 8 wt%, molar ratio of methanol/oleic acid of 8 at 70 degrees C for 2 h. After being secondly calcined at 500 degrees C (UiO-66/SSN), the interaction between sulfate and zirconium was evidently improved and the conversion decrement is reduced by 66.25% compared with UiO-66/SFN within five cycles.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 143468-13-7. Product Details of 143468-13-7.

Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem