Abstract Effects of phosphorus addition to HZSM-5 on ethanol conversion to propylene were evaluated. Catalysts were characterized by XRF, XRD, nitrogen adsorption, 27 Al and 31 P MAS NMR, ...

For a better understanding of the hydrolysis–condensation process of the polysilylamide, new model compounds of pentacoordinated silicon derivatives of pyridones were synthesized, characterized, and ...

Given the diversity of educational settings, teaching practices, and socio-cultural factors, a comparison of possible inconsistencies will be conducted across all the studies and only findings from ...