Sol-gel prepared of LaMnO3 perovskite: characterisation and catalytic activity in 2-phenylbenzo[d]imidazo[2,1-b]thiazole synthesis

Phuong Thai  Pham; Nam T.S.  Phan; Tung T.  Nguyen; Nguyen Khanh  Duyen; Thi-Thuy-Ngan  Nguyen; Ngoc-Thanh-Phuong  Thai; Minh-Vien  Le

doi:10.6180/jase.202408_27(8).0011

Sol-gel prepared of LaMnO3 perovskite: characterisation and catalytic activity in 2-phenylbenzo[d]imidazo[2,1-b]thiazole synthesis

Chemical Engineering Material Engineering

Phuong Thai Pham^1,2, Nam T.S. Phan^1,2, Tung T. Nguyen^1,2, Nguyen Khanh Duyen^1,2, Thi-Thuy-Ngan Nguyen^1,2, Ngoc-Thanh-Phuong Thai^1,2, and Minh-Vien Le^1,2This email address is being protected from spambots. You need JavaScript enabled to view it.

¹Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), Ho Chi Minh City 700000, Vietnam

²Vietnam National University Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam

Received: June 30, 2023
Accepted: September 26, 2023
Publication Date: November 20, 2023

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202408_27(8).0011

In this work, LaMnO₃ was prepared by the sol-gel method followed by thermal treatment. The catalytic activity of LaMnO₃ in the synthesis of 2-phenylbenzo[d]imidazo[2,1-b]thiazole (2-PIT) from 2-aminobenzothiazole and acetophenone was strongly influenced by the calcination temperature. The highest efficiency of samples synthesized at 800^◦C was approved due to Lewis acid and oxygen vacancy sites properties which were confirmed through NH3-TPD and H2-TPR. Furthermore, the stability and reusability of the sample demonstrated the potential of LaMnO₃ heterogeneous catalysts in organic synthesis applications.

Keywords: LaMnO3, acetophenone, 2-aminobenzothiazole, organic synthesis.

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