New magnetic nanocomposites of ZrO2–Al2O3–Fe3O4as green solid acid catalysts in organic reactions

Autor:	Xiang Liu, Zhong-Xing Su, Anqi Wang, Huanwang Jing
Rok vydání:	2014
Předmět:	Nanocomposite Organic reaction Chemistry Biginelli reaction Organic chemistry Solid acid High-resolution transmission electron microscopy Catalysis
Zdroj:	Catal. Sci. Technol.. 4:71-80
ISSN:	2044-4761 2044-4753
DOI:	10.1039/c3cy00572k
Popis:	A series of magnetic solid acid nano-catalysts were designed and prepared through a facile co-precipitate approach. The original nanocomposites ZrO2–Al2O3–Fe3O4 were characterized by means of ICP-AES, BET, XRD, TEM, HRTEM, VSM, FT-IR, NH3-TPD and TG. Their catalytic behaviours were investigated via esterification, the synthesis of bis-indolylmethanes, Hantzsch reaction, Biginelli reaction and Pechmann reaction. In all of these organic reactions, the corresponding products were obtained in moderate to excellent yields. The optimal catalyst was ZAF-16/16, which retained catalytic activity after several recycles.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0a088d89a2825138ba57ef958db45009 https://doi.org/10.1039/c3cy00572k Zobrazit plný text záznamu