Effect of aluminum on the mesoporous materials support of heterogenized Nickel β-diimine in oligomerization reactions

Rossetto, Enéderson; Zanette, Tatiana; Rocha, Rafael Silva da; Nicola, Bruna Pes; Pergher, Sibele B. C.; Bernardo-Gusmão, Kátia

doi:10.1016/j.mcat.2018.05.026

Cited by 7 publications

(1 citation statement)

References 27 publications

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“…The latter approach involves the surface modification by grafting or coating (Liu et al 2009;Huang et al 2016;Wang et al 2019;Krishna et al 2018;Noda et al 2016). Several studies have described the efficiency in the insertion of acidic groups on the surface of MCM-41 for application in catalysis (Chermahini et al 2015;Díaz et al 2005;Wang et al 2017;Rossetto et al 2018;Mohino et al 2002;Debasish, Jyh-Fu Lee and Cheng 2001). Some studies described that this material has an efficient catalytic performance when applied in esterification reactions, due to the combination of high acidity and proper porous structure (Díaz et al 2005;.…”

Section: Introductionmentioning

confidence: 99%

Sulfonated MCM-41 as potential catalyst to obtain biolubricants from vegetable oil

Silvestre‐Albero

Maier

Ricardo

et al. 2022

Braz. J. Chem. Eng.

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Biolubricants may be obtained from vegetable oils using appropriate chemical modifications, to improve their physicochemical properties for lubrication applications. In this study, the esterification of a free fatty acid (FFA) with long chain alcohols was performed using sulfonated mesoporous silica as catalyst. Fresh and functionalized MCM-41 samples were prepared to evaluate the effect of the sulfonic surface group on the esterification reaction. MCM-41 was functionalized via post-synthesis modification using 3-mercaptopropyltrimethoxysilane (MPTS) as silylating agent. The synthesized catalysts were characterized using several techniques. After the functionalization, a decrease in the apparent surface area and pore diameter were observed. The MCM-41/SO3H sample was applied in the esterification reaction of oleic acid (as a FFA model) using two different long-chain alcohols (octanol and 2-ethylhexanol). The catalytic results reveal that sulfonated catalyst showed excellent conversions (~100% mol when using octanol and >93% mol using 2-ethylhexanol) and selectivities to esters (ca. 90%).

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