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%0 Thesis
%A Ciptonugroho, Wirawan
%T Development of modified ZrO2 catalysts for the production of levulinic acid esters
%I RWTH Aachen
%V Dissertation
%C Aachen
%M RWTH-2017-04817
%P 1 Online-Ressource (115 ungezählte Seiten) : Illustrationen, Diagramme
%D 2017
%Z Weitere Förderung durch: Indonesian Ministry of National Education Fellowship (DGHE DIKTI fellowship). - Veröffentlicht auf dem Publikationsserver der RWTH Aachen University
%Z Dissertation, RWTH Aachen University, 2017
%X WOx/ZrO2 catalysts have been synthesized with different tungsten loadings and calcination temperatures via one-pot evaporation induced self-assembly (EISA) technique. The tungsten contents and calcination temperatures greatly influence the textural properties of the material. The crystallinity and surface state of materials are confirmed by X-ray diffraction and Laser Raman spectroscopy. The surface acidity of the materials are evaluated by NH3-temperature programmed desorption (NH3-TPD) and diffuse reflectance Fourier transform (DRIFT) with adsorbed pyridine. The catalysts containing 20-25 wt
%F PUB:(DE-HGF)11
%9 Dissertation / PhD Thesis
%R 10.18154/RWTH-2017-04817
%U https://publications.rwth-aachen.de/record/690066