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Chapter 6
Catalyst Kinetics and Stability in Homogeneous Alcohol
Acceptorless Dehydrogenation
Martin Nielsen
Additional information is available at the end of the chapter
http://dx.doi.org/10.5772/intechopen.70654 Provisional chapter
© 2016 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons
Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution,
and reproduction in any medium, provided the original work is properly cited.
DOI: 10.5772/intechopen.70654
Catalyst Kinetics and Stability in Homogeneous Alcohol
Acceptorless Dehydrogenation
Martin Nielsen
Additional information is available at the end of the chapter
Abstract
The anthropogenic climate changes caused by meeting the energy demands of society by
use of fossil fuels render the development of benign alternatives imperative. Probably,
the most promising alternative is generating energy by means of power units driven by,
e.g., solar, wind, water, etc., and then storing the energy that is not immediately used
in battery type devices. Such a device might consist of hydrogen chemically stored as
alcohol(s). The advantage of this method is that it allows gaseous hydrogen to be stored
much more efficiently when liquefied as an alcohol. Moreover, as will be shown in this
review, it is possible to release the hydrogen under mild conditions when employing
homogeneous catalysis. This review considers the kinetic aspects of homogeneously
catalysed acceptorless alcohol dehydrogenation reactions. For clarity, the sections are
divided according to alcohol substrate, and each metal are described and discussed in
subsections. Moreover, the kinetic information in the homogeneously catalysed AAD is
traditionally provided simply as the turnover frequency, and more in-depth studies on
the actual kinetic parameters are to date still largely elusive.
Keywords: homogeneous catalysis, acceptorless dehydrogenation, alcohols, catalyst
kinetics, catalyst stability
1. Introduction
Acceptorless alcohol dehydrogenation (AAD) is the extrusion of H2 from alcohols resulting
in H2 and carbonyl products. The latter includes, e.g., aldehydes, ketones, esters, amides, car-
boxylic acids, and CO2. Conducting AAD by means of homogeneous catalysis is a promis-
ing approach towards a viable applicable energy carrier technology. For example, the vision
with “Methanol economy” [1] is that H2 produced by renewable energy sources is stored and
transported in MeOH. The reasons for doing so are that H2 is unfeasible to transport and that
© 2018 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons
Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use,
distribution, and reproduction in any medium, provided the original work is properly cited.
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Buch Advanced Chemical Kinetics"
Advanced Chemical Kinetics
- Titel
- Advanced Chemical Kinetics
- Autor
- Muhammad Akhyar Farrukh
- Herausgeber
- InTech
- Ort
- Rijeka
- Datum
- 2018
- Sprache
- englisch
- Lizenz
- CC BY 4.0
- ISBN
- 978-953-51-3816-7
- Abmessungen
- 18.0 x 26.0 cm
- Seiten
- 226
- Schlagwörter
- Engineering and Technology, Chemistry, Physical Chemistry, Chemical Kinetics
- Kategorien
- Naturwissenschaften Chemie