35 research outputs found
Manganese promotion in cobalt-based Fischer-Tropsch catalysis
No full textABSTRRACT The effect of Mn addition on the catalytic performances of Fischer-Tropsch synthesis was investigated using a series of Co/TiO 2 catalysts prepared by two different preparation methods; incipient wetness impregnation (IWI) and homogeneous deposition precipitation (HDP). Mn was loaded using two different procedures in order to investigate its interaction with Co and TiO 2 . Several characterization techniques, mainly XRD, XPS and TPR, were used to elucidate the Co oxidation state and dispersion and to estimate the Mn location. Fischer-Tropsch synthesis carried out at 1 bar of pressure showed an improvement of the catalytic performance in the Mn-promoted HDP catalyst, whereas no promotion effect was found in Mn-promoted IWI catalyst. This difference can be explained by a different Co-Mn interaction
pH DEPENDENCE OF SINGLET OXYGEN PRODUCTION IN AQUEOUS SOLUTIONS USING TOLUIDINE BLUE AS A PHOTOSENSITIZER
No full textTRIPLET STATES OF CAROTENOIDS FROM PHOTOSYNTHETIC BACTERIA STUDIED BY NANOSECOND ULTRAVIOLET AND ELECTRON PULSE IRRADIATION
No full textSYNTHETIC CAROTENOIDS, NOVEL POLYENE POLYKETONES AND NEW CAPSORUBIN ISOMERS AS EFFICIENT QUENCHERS OF SINGLET MOLECULAR OXYGEN
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Laser photolysis study of triplet exciplexes of nitronaphthalenes with tertiary aromatic amines
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DFT Studies and Experiments on Biocatalytic Centers: Structure, Vibrations, and Core Excitations of the K[VO(O 2
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Post-column photochemical reaction detection in liquid chromatography based on photosensitized generation of singlet molecular oxygen: Study of reaction parameters and application to the determination of polychlorinated biphenyls
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