From Science & Research
From Science & Research of furanic compounds is possible. In that approach both at the anode of the electrochemical cell and at the cathode a relevant reaction takes place (Figure 3). The span of this approach is currently under investigation. For example, the research at Wageningen University indicates that it is possible to oxidize larger biopolymers such as starch in such a paired electrolysis cell. They focus on oxidation in this case which will result in oxidized starch which can act as a replacement of fossil-based polyacrylates and be used for example as super absorbers. Outlook/summary Catalysis will remain at the heart of the chemical industry also in the future and is key to sustainable production. But the nature of the catalysts will need to change. Catalysts have to deal with new feedstocks (biomass, CO 2 , recycled polymers, etc.) and energy inputs might change from heat to alternatives like light and electricity. This requires new catalysts and catalytic processes. In addition, the scarcity of certain elements, most notable noble metals, will require the development of new catalysts based on readily available elements. References: [1] Gosselink R.W., D.R. Stellwagen and J.H. Bitter, Tungsten-Based Catalysts for Selective Deoxygenation, Angew. Chem. Int. Ed. Eng., 2013, 52(19), 5089-5092 [2] Souza Macedo L., R. R. Oliveira Jr., T. van Haasterecht, V. Teixeira da Silva and J.H. Bitter, Influence of synthesis method on molybdenum carbide crystal structure and catalytic performance in stearic acid hydrodeoxygenation, Appl.Catal.B: Environmental, 241 (2019) 81-88 [3]Fuhrer M., T. van Haasterecht and J.H. Bitter, Molybdenum and tungsten carbides can shine too., Catal. Sci. Technol., 2020, 10, 6089-6097 [4] Levy R.B., M. Boudart, Platinum-like behavior of tungsten carbide in surface catalysis, Science, 1973, 4099(181), 547-549 [5] Haasterecht van T., C.C.I. Ludding, K.P. de Jong, J.H. Bitter, Toward stable nickel catalysts for aqueous phase reforming of biomass-derived feedstock under reducing and alkaline conditions, J.Catal., 319 (2014) 27-35 [6]Kwon Y., K.J.P. Schouten, J.C. van der Waal, E. de Jong and M.T.M. Koper, electocatalytic conversion of furanic compounds, ACS Catalysis, 2016, 6, 6704-6717. www.wur.nl Figure 3: left: schematic representation of a paired electrolysis cell (Kwon 2016); right: experimental cell as used in the lab. Magnetic for Plastics www.plasticker.com • International Trade in Raw Materials, Machinery & Products Free of Charge. • Daily News from the Industrial Sector and the Plastics Markets. • Current Market Prices for Plastics. • Buyer’s Guide for Plastics & Additives, Machinery & Equipment, Subcontractors and Services. • Job Market for Specialists and Executive Staff in the Plastics Industry. Up-to-date • Fast • Professional 46 bioplastics MAGAZINE [04/21] Vol. 16
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