Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

A mini-review on solid superbase catalysts developed in the past two decades

Language

English

Abstract

In this mini-review, we focus on the research activities on solid superbase catalysts that have been conducted in the past two decades. We summarize the type and preparation of superbases, the mechanism for the generation of basic sites, and the applications of superbases in catalysis. It is pointed out that several kinds of superbases are reported so far with the majority of solid superbases generated using a single metal oxide as support. However, the superbases are extremely sensitive to water and CO2, and rigorous conditions are required for their preparation and utilization. As a consequence, the development and application of solid superbases is limited. Despite the understanding of formation mechanism of superbasic sites being essential for the design of solid superbases, reports on this aspect are scant. It is envisaged that composite metal oxides and porous materials should be developed as support materials to generate novel solid superbases, and our recent research results open up a new route for the design and synthesis of composite oxide superbase materials. Efforts should be devoted to study the generation of superbase sites by adopting advanced techniques for characterization and new methods for theoretical investigation. Moreover, it is predicted that solid superbases will find new applications in catalysis, especially in reactions that require high temperatures for desorption of acidic substances from surfaces of superbases. © 2013 The Royal Society of Chemistry.

Publication Date

2013

Source Publication Title

RSC Advances

Volume

3

Issue

12

Start Page

3799

End Page

3814

Publisher

Royal Society of Chemistry

DOI

10.1039/C2RA22252C

Link to Publisher's Edition

http://dx.doi.org/10.1039/C2RA22252C

ISSN (print)

20462069

ISSN (electronic)

20462069

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