Journal ArticleDOI
Temperature-programmed reduction and zeta potential studies of the structure ofMo/O3Al2O3 andMo/O3SiO2 catalysts effect of the impregnation pH and molybdenum loading
TLDR
The influence of impregnation pH and molybdenum content on the surface structure of catalysts has been studied by temperature-programmed reduction, X-ray diffraction and zeta potential measurements as discussed by the authors.About:
This article is published in Applied Catalysis.The article was published on 1991-06-27. It has received 129 citations till now. The article focuses on the topics: Temperature-programmed reduction & Zeta potential.read more
Citations
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Journal ArticleDOI
Catalytic dehydrogenation of light alkanes on metals and metal oxides.
TL;DR: The study compares different catalysts in terms of the reaction mechanism and deactivation pathways and catalytic performance, as dehydrogenation for the production of light olefins has become extremely relevant.
Journal ArticleDOI
3-D ordered mesoporous KIT-6 support for effective hydrodesulfurization catalysts
Kapil Soni,Bharat S. Rana,Anil K. Sinha,Asim Bhaumik,Mahasweta Nandi,Manoj Kumar,Gudimella Murali Dhar +6 more
TL;DR: In this paper, KIT-6 silica with well-ordered 3D mesoporosity was developed as support for Mo, CoMo and NiMo catalysts and TEM and low-angle XRD analyses were used to ensure that the cubic Ia3d mesostructure is stable after Mo and promoter incorporation.
Journal ArticleDOI
MAS NMR, TPR, and TEM studies of the interaction of NiMo with alumina and silica-alumina supports
TL;DR: The results of temperature-programmed reduction show that the weaker interaction between the Mo and Ni species and the silica-alumina support leads to better reducibility of the metal oxides on silica alumina than on Al 2 O 3 as discussed by the authors.
Journal ArticleDOI
Effect of the support on the high activity of the (Ni)Mo/ZrO2–SBA-15 catalyst in the simultaneous hydrodesulfurization of DBT and 4,6-DMDBT
TL;DR: In this paper, a series of Mo-and NiMo-catalysts were supported on ZrO2, Al2O3, SBA-15, and Zr O2-modified SBA15 and tested in the simultaneous hydrodesulfurization (HDS) of dibenzothiophene (DBT) and 4,6-dimethyldibenzethiophene(4,6)-DMDBT).
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Methane reforming reaction with carbon dioxide over SBA-15 supported Ni–Mo bimetallic catalysts
TL;DR: In this article, a series of mesoporous molecular sieves SBA-15 supported Ni-Mo bimetallic catalysts (xMo1Ni, Ni= 12 ¼wt.%, Mo/Ni atomic ratio ǫ = 0.5, 0.3,0.7) were prepared using co-impregnation method for carbon dioxide reforming of methane.
References
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Journal ArticleDOI
Temperature-programmed reduction of CoOAI2O3 catalysts
P. Arnoldy,Jacob A. Moulijn +1 more
TL;DR: In this article, it was shown that temperature-programmed reduction (TPR) is a sensitive technique for the characterization of Co and Co-Aloxidic phases in CoOAl2O3 catalysts.
Journal ArticleDOI
Raman and ultraviolet spectroscopic characterization of molybdena on alumina/catalysts
TL;DR: In this paper, the Raman and UV spectra indicated that adsorption on the alumina surface occurred in all cases via the MoO/sub 4/(-2) ion, probably due to locally increased pH.
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Interaction chemistry between molybdena and alumina: infrared studies of surface hydroxyl groups and adsorbed carbon dioxide on aluminas modified with molybdate, sulfate, or fluorine anions
TL;DR: In this paper, the surface OH groups of Al/sub 2/O/sub 3/ with various concentrations of F/sup /minus/, SO/sub 4/sup 2/minus//, or molybdate anions were studied by use of IR techniques as well as by the adsorption of CO/sub2/ in order to reveal the interaction chemistry between Al/ sub 2 /O/ sub 3 /sub 3 and moly bdate species.
Journal ArticleDOI
Characterization of supported molybdate catalysts during preparation using laser Raman spectroscopy
C.P. Cheng,G.L. Schrader +1 more
TL;DR: In this article, the formation of supported molybdate catalysts was investigated using laser Raman spectroscopy, and the effect of variations in the preparation procedure was investigated.