Synthesis of NiMoO4 by the Complexation Method Combining EDTA-Citrate and its Behavior Against Biodiesel Acidity

In this paper, NiMoO4 powder was synthesized by the complexation method combining EDTA-Citrate. The behavior of the NiMoO4 material in the ethyl transesterification reaction was evaluated by analyzing the acidity index under specified reaction conditions. The results showed that NiMoO4 crystallized at 800 °C with a total mass loss of 85%, presenting a monoclinic structure, free of secondary phases, high degree of crystallinity and average crystallite size of 140 nm. The particles had heterogeneous sizes and shapes, but with well-defined contours. The increase in the mass of NiMoO4 in the reaction medium reduced the acidity index (0.8 mgKOH.g-1 with 15 wt.%). Despite the use of the minimum molar ratio (1:3), the ethyl route being less reactive and the use of the operating temperature close to the alcohol evaporation temperature, NiMoO4 showed promising catalytic potential in the transesterification process.

Bibliographic Details

Main Authors:	Silva,Larissa Nogueira e, Silva,Alexsandro Rocha da, Silva,Maitê Medeiros de Santana e, Santos,Francisco Klebson Gomes dos, Santos,Andarair Gomes dos
Format:	Digital revista
Language:	English
Published:	ABM, ABC, ABPol 2021
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392021000400216
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