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2 Articles

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Immobilizing Ni (II)-Exchanged Heteropolyacids on Silica as Catalysts for Acid-Catalyzed Esterification Reactions

Qiuyun Zhang, Dandan Lei, Qianqian Luo, Taoli Deng, Jingsong Cheng, Yutao Zhang, Peihua Ma

Biodiesel was synthesized from oleic acid using Ni (II)-exchanged heteropolyacids immobilized on silica (Ni0.5H3SiW?/?SiO2?) as a solid acid catalyst. Based on detailed analyses of FT-IR, XRD, TG and SEM, the structural, surface and thermal stability of N... see more

heteropolyacids | Ni salts of silicotungstic acid | SiO2 | esterification | biodiesel

Periodica Polytechnica: Chemical Engineering , 2021

Free Access

A hybrid system bases on silica-alumina and Keggin heteropolyacids as catalyst in the suitable 2-(2-furyl)-chromones and chromanones synthesis A hybrid system bases on silica-alumina and Keggin heteropolyacids as catalyst in the suitable 2-(2-furyl)-chromones and chromanones synthesis

V. Palermo, D. Ruiz, A. Sathicq, P. Vázquez, G. Romanelli

Ciencia en Desarrollo , 2000

Free Access

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