Data di Pubblicazione:
2015
Citazione:
Glycerol oxidation using gold-containing catalysts / A. Villa, N. Dimitratos, C. E. Chan-Thaw, C. Hammond, L. Prati, G. J. Hutchings. - In: ACCOUNTS OF CHEMICAL RESEARCH. - ISSN 1520-4898. - 48:5(2015 May 19), pp. 1403-1412. [10.1021/ar500426g]
Abstract:
Glycerol is an important byproduct of biodiesel
production, and it is produced in significant amounts by
transesterification of triglycerides with methanol. Due to the
highly functionalized nature of glycerol, it is an important
biochemical that can be utilized as a platform chemical for the
production of high-added-value products. At present, research
groups in academia and industry are exploring potential direct
processes for the synthesis of useful potential chemicals using
catalytic processes. Over the last 10 years, there has been huge
development of potential catalytic processes using glycerol as the
platform chemical.
One of the most common processes investigated so far is the
catalytic oxidation of glycerol at mild conditions for the formation
of valuable oxygenated compounds used in the chemical and pharmaceutical industry. The major challenges associated with the
selective oxidation of glycerol are (i) the control of selectivity to the desired products, (ii) high activity and resistance to
poisoning, and (iii) minimizing the usage of alkaline conditions. To address these challenges, the most common catalysts used for
the oxidation of glycerol are based on supported metal nanoparticles. The first significant breakthrough was the successful
utilization of supported gold nanoparticles for improving the selectivity to specific products, and the second was the utilization of
supported bimetallic nanoparticles based on gold, palladium, and platinum for improving activity and controlling the selectivity to
the desired products. Moreover, the utilization of base-free reaction conditions for the catalytic oxidation of glycerol has unlocked
new pathways for the production of free-base products, which facilitates potential industrial application.
The advantages of using gold-based catalysts are the improvement of the catalyst lifetime, stability, and reusability, which are key
factors for potential commercialization. In this Account, we discuss the advantages of the using supported gold-based
nanoparticles, preparation methods for achieving highly active gold-based catalysts, and parameters such as particle size,
morphology of the bimetallic particle, and metal−support interactions, which can influence activity and selectivity to the desired
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
glycerol oxidation; gold; bimetallic catalysts
Elenco autori:
A. Villa, N. Dimitratos, C.E. Chan-Thaw, C. Hammond, L. Prati, G.J. Hutchings
Link alla scheda completa: