Evaluation of the catalytic activity of oxide nanoparticles synthesized by the polymeric precursor method on biodiesel production
Source abstract
Abstract
This paper shows a comparison between different nanostractured oxides, obtained by polymeric precursor method, regarding their activity for biodiesel conversion from oil-methanol mixtures. The basicity/acidity and surface area (SA) of the oxides were taken in account to analyze the catalytic activity in the transesterification reaction. The temperature dependence for the heterogeneous catalysts was analyzed, where only CaO showed activities at 70 °C (β-98% of conversion), while the other oxides, SnO2, ZnO, TiO2, CaTiO3, were observed active only at 150 °C for the reaction parameters adopted. The results revealed that the highest activity observed is not associated to SA only but mainly with the surface basicity. This suggest that, for oxides synthesized by the polymeric precursor method, the surface basicity surpasses the particle size effects in catalysis in a way to promote the transesterification reaction.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Biodiesel Production and Applications · Catalysis and Hydrodesulfurization Studies · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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