2022
DOI: 10.1007/s11356-022-23136-z
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Core-shell assembly of ZrO2 nanoparticles with ionic liquid: a novel and highly efficient heterogeneous catalysts for Biginelli and esterification reactions

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Cited by 6 publications
(5 citation statements)
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“…By means of evaporation, the solvent chloroform was removed resulting in a core‐shell heterostructure functionalized with an ionic liquid (nano‐CeO 2 ‐IL) (Scheme 1). The interaction of Imidazole and 3‐chloropropyltriethoxysilane was confirmed by 1 H NMR spectroscopy as shown in Figure S6 [25,26] …”
Section: Methodsmentioning
confidence: 84%
See 1 more Smart Citation
“…By means of evaporation, the solvent chloroform was removed resulting in a core‐shell heterostructure functionalized with an ionic liquid (nano‐CeO 2 ‐IL) (Scheme 1). The interaction of Imidazole and 3‐chloropropyltriethoxysilane was confirmed by 1 H NMR spectroscopy as shown in Figure S6 [25,26] …”
Section: Methodsmentioning
confidence: 84%
“…The interaction of Imidazole and 3-chloropropyltriethoxysilane was confirmed by 1 H NMR spectroscopy as shown in Figure S6. [25,26]…”
Section: Nano-ceo 2 -Bonded Imidazolium-sulfonic Acid Chloride Synthesismentioning
confidence: 99%
“…Esterification reactions were carried out with 60 mmol of alcohol (methanol), 10 mmol of acid and 40 mg of the catalyst, ZIF-4@HAp, in a 25 mL round bottom flask at 60 °C with a magnetic stirring of 500 rpm. 50 Initially, several sets of reactions were carried out in order to ensure the catalytic efficacy of the prepared materials. All the chosen esterification reactions were monitored separately using pure HAp, ZIF-4 and the composite ZIF-4@HAp as catalysts.…”
Section: Optimum Reaction Conditionsmentioning
confidence: 99%
“…Among these SnO/TiO 2 , 10% SnO/TiO 2 -Cl showed the best esterication performance with conversions of 91.2% and 99.6% at 2 h and 5 h, which was equivalent to or better than the catalytic esterication performance reported in the literature (Table 2). [29][30][31][32][33][34][35][36] By changing the Sn precursor from SnCl 2 $2H 2 O to SnC 2 O 4 , the conversion was reduced to 86.2% and 92.3% at 2 h and 5 h on 10% SnO/TiO 2 -ox. Then, the effect of Sn loading on the catalytic activity was investigated.…”
Section: Catalytic Performancementioning
confidence: 99%