Issue 6, 2024

Synthesis of a sustainable and robust heterogeneous TEMPO catalyst utilizing activated carbon for aerobic alcohol oxidation

Abstract

The selective oxidation of alcohols is a crucial process in organic chemistry, but current methodologies have limitations such as pollution and over-oxidation. The use of 2,2,6,6-tetramethylpiperidine oxide (TEMPO) as a catalyst offers a promising approach for selective aerobic alcohol oxidation. However, the high cost of TEMPO and difficulty in catalyst recycling hinder its industrial application. This study focuses on developing a sustainable and robust heterogeneous TEMPO catalyst by immobilizing TEMPO on activated carbon (AC) through ozonation and reductive amination. The surface modification of AC through ozone carbonylation is explored, and a green and safe process is established using water as a dispersing and heat-shifting medium. The TEMPO-functionalized AC as a heterogeneous catalyst is characterized using various analytical techniques, and its catalytic performance is evaluated for continuous aerobic alcohol oxidation in a micro-packed bed reactor. The results demonstrate an extended catalyst lifetime (turnover number reaches 1465.0 for benzyl alcohol oxidation) and significant potential for industrial applications.

Graphical abstract: Synthesis of a sustainable and robust heterogeneous TEMPO catalyst utilizing activated carbon for aerobic alcohol oxidation

Supplementary files

Article information

Article type
Paper
Submitted
16 Sep 2023
Accepted
19 Feb 2024
First published
20 Feb 2024

React. Chem. Eng., 2024,9, 1444-1451

Synthesis of a sustainable and robust heterogeneous TEMPO catalyst utilizing activated carbon for aerobic alcohol oxidation

J. Luo, C. Zhang, W. Liu, Y. Li, B. Xie and J. Zhang, React. Chem. Eng., 2024, 9, 1444 DOI: 10.1039/D3RE00492A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements