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TY  - THES
AU  - Ciptonugroho, Wirawan
TI  - Development of modified ZrO2 catalysts for the production of levulinic acid esters
PB  - RWTH Aachen
VL  - Dissertation
CY  - Aachen
M1  - RWTH-2017-04817
SP  - 1 Online-Ressource (115 ungezählte Seiten) : Illustrationen, Diagramme
PY  - 2017
N1  - Weitere Förderung durch: Indonesian Ministry of National Education Fellowship (DGHE DIKTI fellowship). - Veröffentlicht auf dem Publikationsserver der RWTH Aachen University
N1  - Dissertation, RWTH Aachen University, 2017
AB  - 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
LB  - PUB:(DE-HGF)11
DO  - DOI:10.18154/RWTH-2017-04817
UR  - https://publications.rwth-aachen.de/record/690066
ER  -