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Catalysts 2017, 7(2), 62; doi:10.3390/catal7020062

Monoliths: A Review of the Basics, Preparation Methods and Their Relevance to Oxidation

Catalysis Research Group, School of Chemistry and Physics, University of KwaZulu-Natal, Westville Campus, Durban 4000, South Africa
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Academic Editor: Keith Hohn
Received: 8 September 2016 / Revised: 22 November 2016 / Accepted: 5 December 2016 / Published: 16 February 2017
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Abstract

Considerable research has been conducted on monolithic catalysts for various applications. Strategies toward coating monoliths are of equal interest and importance. In this paper, the preparation of monoliths and monolithic catalysts have been summarized. More specifically, a brief explanation for the manufacturing of ceramic and metallic monoliths has been provided. Also, different methods for coating γ-alumina, as a secondary support, are included. Techniques used to deposit metal-based species, zeolites and carbon onto monoliths are discussed. Furthermore, monoliths extruded with metal oxides, zeolites and carbon are described. The main foci are on the reasoning and understanding behind the preparation of monolithic catalysts. Ideas and concerns are also contributed to encourage better approaches when designing these catalysts. More importantly, the relevance of monolithic structures to reactions, such as the selective oxidation of alkanes, catalytic combustion for power generation and the preferential oxidation of carbon monoxide, has been described. View Full-Text
Keywords: monolith; coated monoliths; monolithic catalysts; homogeneous reactions; oxidative dehydrogenation; preferential oxidation monolith; coated monoliths; monolithic catalysts; homogeneous reactions; oxidative dehydrogenation; preferential oxidation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Govender, S.; Friedrich, H.B. Monoliths: A Review of the Basics, Preparation Methods and Their Relevance to Oxidation. Catalysts 2017, 7, 62.

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