Issue 30, 2020

Halloysite nanotubes based heterogeneous solid acid catalysts

Abstract

There has been growing interest towards clay minerals such as halloysite nanotubes (HNTs) due to their biocompatibility, availability and potential applications in the field of catalysis. Halloysite nanotubes can be modified on both the surfaces to tune their properties explicitly for their innumerable applications in the field of catalysis. The outer surface of halloysite nanotubes is fit for functionalization to develop halloysite catalysts, which creates a valuable provision for endorsing catalytic applications with tunable properties. Furthermore, the occurrence of an empty lumen unlocks new perspectives for the creation of nanostructures with synergistic catalytic effects. This class of compounds displayed promising catalytic performances, and up to now, halloysite-based catalysts have been useful for promoting several chemical transformations. Taking into account the excellent catalytic performance of these nanotubes as catalysts or catalyst supports, the main focus of this review article is to unveil the research on halloysite nanotubes for the preparation of solid acids and their applications in acid catalytic processes.

Graphical abstract: Halloysite nanotubes based heterogeneous solid acid catalysts

Article information

Article type
Perspective
Submitted
05 jun 2020
Accepted
30 jun 2020
First published
30 jun 2020

New J. Chem., 2020,44, 12897-12908

Halloysite nanotubes based heterogeneous solid acid catalysts

A. Mahajan and P. Gupta, New J. Chem., 2020, 44, 12897 DOI: 10.1039/D0NJ02846K

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