TY - JOUR
T1 - ToF-SIMS as a versatile tool to study the surface properties of silica supported cobalt catalyst for Fischer-Tropsch synthesis
AU - Grams, Jacek
AU - Ura, Agnieszka
AU - Kwapiński, Witold
PY - 2014/4/15
Y1 - 2014/4/15
N2 - The aim of this work was to determine the surface properties of silica supported cobalt catalyst for Fischer-Tropsch synthesis. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) was used for this purpose as a main analytical tool. Moreover, X-ray diffraction (XRD), temperature programmed reduction (TPR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis/differential thermal analysis/mass spectrometry (TG-DTA-MS) and BET surface area measurements were performed. The influence of a preparation method and treatment conditions on the surface composition (including the formation of different phases of cobalt oxides, cobalt silicate and decomposition of cobalt nitrate - catalyst precursor), cobalt oxidation degree and metal dispersion was studied. 10%Co/SiO2 catalysts prepared by impregnation and deposition-precipitation methods were investigated. Moreover, pure Co 3O4, CoO and Co powders were used as reference materials.
AB - The aim of this work was to determine the surface properties of silica supported cobalt catalyst for Fischer-Tropsch synthesis. Time-of-flight secondary ion mass spectrometry (ToF-SIMS) was used for this purpose as a main analytical tool. Moreover, X-ray diffraction (XRD), temperature programmed reduction (TPR), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis/differential thermal analysis/mass spectrometry (TG-DTA-MS) and BET surface area measurements were performed. The influence of a preparation method and treatment conditions on the surface composition (including the formation of different phases of cobalt oxides, cobalt silicate and decomposition of cobalt nitrate - catalyst precursor), cobalt oxidation degree and metal dispersion was studied. 10%Co/SiO2 catalysts prepared by impregnation and deposition-precipitation methods were investigated. Moreover, pure Co 3O4, CoO and Co powders were used as reference materials.
KW - Co/SiO
KW - Cobalt catalyst
KW - Cobalt silicate
KW - Fischer-Tropsch synthesis
KW - Secondary ion mass spectrometry
UR - http://www.scopus.com/inward/record.url?scp=84893738880&partnerID=8YFLogxK
U2 - 10.1016/j.fuel.2014.01.005
DO - 10.1016/j.fuel.2014.01.005
M3 - Article
AN - SCOPUS:84893738880
SN - 0016-2361
VL - 122
SP - 301
EP - 309
JO - Fuel
JF - Fuel
ER -