Polymer precursors from catalytic reactions of natural oils

Furst, Marc R. L.; Goff, Ronan Le; Quinzler, Dorothee; Mecking, Stefan; Botting, Catherine H.; Cole‐Hamilton, David J.

doi:10.1039/c1gc16094j

Cited by 106 publications

(81 citation statements)

References 166 publications

(208 reference statements)

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“…INTRODUCTION Palladium (Pd) is a ubiquitous catalyst used in automotive 1 , oil refining 2 , polyester manufacturing 3 and as a synthesis platform for fine chemicals. It is also a promising candidate for use as an electrocatalyst, to reduce the dependence on platinum (Pt) for applications such as water electrolysis and polymer electrolyte membrane fuel cell (PEMFC) catalysts, since it has many properties similar to Pt including its electronic and face centred cubic crystal structure.…”

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confidence: 99%

Pd nanoparticles supported on reduced graphene–E. coli hybrid with enhanced crystallinity in bacterial biomass

et al. 2015

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A novel method for simultaneous reduction of graphene oxide (GO) and palladium salt, Pd (II), using Escherichia coli in the separate presence of two different mild reducing agents (hydrogen and formate) is investigated to successfully produce reduced GO (rGO)-biomass/Pd hybrid material for potential use as an electrocatalyst. Transmission electron microscopy, X-ray diffraction, thermogravimetric analysis, X-ray photoelectron spectroscopy and Raman microscopy demonstrate the successful reduction of Pd (II), GO and the biomass, resulting in the formation of Pd nanoparticles (PdNPs) on an rGO-biomass hybrid. The distribution of the NPs was found to be dependent on the type of reducing agent. PdNPs formed on rGO sheets showed relatively uniform distribution and size control (2-5 nm), whereas PdNPs on the bacterial scaffold were larger (up to 10 nm in size). Raman spectroscopy studies suggest that the presence of Pd leads to oxygen reduction and increased crystallinity in the bacterial biomass. Previous studies have suggested the potential for a bacteriallysupported Pd electrocatalyst in fuel cells and, independently, the suitability of rGO as a support forPdNPs. This study confirms the simultaneous bacterial reduction of Pd (II) and GO and the association between the bacterial cells and rGO. We suggest that the simultaneous presence of E. coli and mild reducing agent together with GO and Pd (II) creates an interactive and synergistic environment in a hybrid material to allow a) better control of PdNP size and distribution both on the inside of the bacterial membrane and on the rGO sheets and b) increased crystallinity of the bacterial biomass compared to systems with bacteria alone.

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Pd nanoparticles supported on reduced graphene–E. coli hybrid with enhanced crystallinity in bacterial biomass

et al. 2015

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“…This is also the initial step when using internal olefins as a starting compound. [56,57] This is followed by the actual hydroesterification of the terminal pentene to give linear hexanoic acid methyl ester 4 (step C). However, steps B and C have to be fast enough to be rather favoured than the side reaction B', which is the complete hydrogenation to pentane.…”

Section: Resultsmentioning

confidence: 99%

Three step auto-tandem catalysed hydroesterification: Access to linear fruity esters from piperylene

Neubert

Steffen

Behr

2015

Journal of Molecular Catalysis A: Chemical

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Section: Fats and Oils As Renewable Feedstock For The Chemical Industrymentioning

confidence: 99%

“…Moreover, we have seen an increasing interest in the development of new catalytic conversions of oleochemicals throughout the years. A prime example in this respect, which has been studied by many research groups since then, is the isomerizing methoxycarbonylation of unsaturated fatty esters, as first presented on the 2nd workshop by Cole-Hamilton [4].During the 5th workshop, a 3-day event held last March in Karlsruhe (Germany), about 120 scientists from industry and academia discussed the latest developments in the field of oleochemistry. The 33 lectures and 43 posters discussed diverse topics, ranging from catalysis to click-chemistry, biotechnology to materials science, and sustainability to efficient processes.…”

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Fats and oils as renewable feedstock for the chemical industry

Metzger

Meier

2013

Euro J Lipid Sci & Tech

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Editorial Fats and oils as renewable feedstock for the chemical industryIt was already the 5th time that the workshop on fats and oils as renewable feedstock for the chemical industry took place in March 2012 in Karlsruhe. This series of meetings started in 2007 due to the need of a discussion forum for new developments in the field of oleochemistry. Back then, such a focussed meeting did not exist and the need for such a meeting can, for instance, be documented by the steady growth of participants throughout the years. During these years, several trends could be easily identified from topics presented during our meetings and the workshop helped to foster scientific exchange and discussion, of course not only in the ''trendy'' areas of research. In the beginning of the workshops, metathesis, especially cross-metathesis, of oleochemicals was certainly such a trend [1]. Today, this is an established technology that might even be realized on commercial scale in the near future. Concerning chemistry, a new trend might be the use of efficient thiol-ene addition reactions to the double bonds of fatty acid derivatives for their functionalization and polymerization [2]. Apart from more classical applications of oleochemicals for, e.g., detergents, personal care, or lubricants, the workshop identified the increasing use of fatty acid derivatives and glycerol for the synthesis of renewable monomers and polymers [3], a continuing trend that is also closely followed by industry. Moreover, we have seen an increasing interest in the development of new catalytic conversions of oleochemicals throughout the years. A prime example in this respect, which has been studied by many research groups since then, is the isomerizing methoxycarbonylation of unsaturated fatty esters, as first presented on the 2nd workshop by Cole-Hamilton [4].During the 5th workshop, a 3-day event held last March in Karlsruhe (Germany), about 120 scientists from industry and academia discussed the latest developments in the field of oleochemistry. The 33 lectures and 43 posters discussed diverse topics, ranging from catalysis to click-chemistry, biotechnology to materials science, and sustainability to efficient processes. Apart from academic discoveries and new developments, presentations from industry representatives clearly showed the high potential of these renewables for real life applications.This special issue of EJLST, with its selection of topics presented at the 5th workshop, provides an overview of the latest developments in the field of oleochemistry and clearly highlights the great versatility of fats and oils as a renewable resource as well as the need for basic and applied research and interdisciplinary approaches within renewable resource research. These facts will certainly be observed again during the 6th workshop on ''Fats and Oils as Renewable Feedstock for the Chemical Industry,'' which will be held at the Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany, from March 17-19, 2013. We are once more planning to cover this event w...

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Polymer precursors from catalytic reactions of natural oils

Cited by 106 publications

References 166 publications

Pd nanoparticles supported on reduced graphene–E. coli hybrid with enhanced crystallinity in bacterial biomass

Pd nanoparticles supported on reduced graphene–E. coli hybrid with enhanced crystallinity in bacterial biomass

Three step auto-tandem catalysed hydroesterification: Access to linear fruity esters from piperylene

Fats and oils as renewable feedstock for the chemical industry

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