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Iron(II) Disulfides as Precursors of Highly Selective Catalysts for Hydrodeoxygenation of Dibenzyl Ether into Toluene

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Ji,  Na
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

Wang,  Xingju
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Weidenthaler,  Claudia
Research Group Weidenthaler, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Spliethoff,  Bernd
Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Rinaldi,  Roberto
Research Group Rinaldi, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Ji, N., Wang, X., Weidenthaler, C., Spliethoff, B., & Rinaldi, R. (2015). Iron(II) Disulfides as Precursors of Highly Selective Catalysts for Hydrodeoxygenation of Dibenzyl Ether into Toluene. ChemCatChem, 7(6), 960-966. doi:10.1002/cctc.201500041.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0026-BD82-3
Abstract
In this report, we show that nanocrystalline pyrite and marcasite (FeS2), supported on SBA-15, aerosil SiO2, activated carbon or Al2O3, are precursors of highly active catalysts for the hydrodeoxygenation of dibenzyl ether into toluene. High yields of toluene (up to 100 %) were achieved in experiments performed at 250 °C under initial H2 pressure of 100 bar for 2 h. In the recycling experiments, results from XRD and XPS analyses indicate that a fresh surface, formed upon the chemical transformation of FeS2 into Fe(1−x)S, is responsible for the high activity and high selectivity achieved in the conversion of dibenzyl ether into toluene.