نتایج جستجو برای: alpo4 5
تعداد نتایج: 1215876 فیلتر نتایج به سال:
Owing to their promising catalytic and adsorptive properties, microporous materials, often referred to as molecular sieves or open-framework materials, have attracted more and more attention in different research fields. Among them, microporous aluminiophosphate molecular sieves (designated AlPO4-n) have been extensively studied by many authors, owing to their wonderfully complex structures and...
The multiple-quantum dipolar refocused-INEPT (MQ-D-R-INEPT) NMR experiment is presented. This new pulse sequence allows the generation of two-dimensional through-space NMR correlation spectra between spin-½ and quadrupolar nuclei under high-resolution. Compared to the existing sequences, the MQ-D-R-INEPT sequence benefits from increased robustness, due to the reduced sensitivity to offsets and ...
A new biofuel similar to biodiesel was obtained in the 1,3-selective transesterification reaction of sunflower oil with ethanol using as biocatalyst a Rhizopus oryzae lipase (ROL) immobilized on Sepiolite, an inorganic support. The studied lipase was a low cost powdered enzyme preparation, Biolipase-R, from Biocon-Spain, a multipurpose additive used in food industry. In this respect, it is deve...
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