Ni/Al2O3-La2O3 catalysts synthesized by a one-step polymerization method applied to the dry reforming of methane: effect of precursor structures of nickel, perovskite and spinel

@article{Silva2019NiAl2O3La2O3CS,
  title={Ni/Al2O3-La2O3 catalysts synthesized by a one-step polymerization method applied to the dry reforming of methane: effect of precursor structures of nickel, perovskite and spinel},
  author={Camylla K. S. Silva and Eduardo Prado Baston and Lisbeth Zelayaran Melgar and Jorge D. A. Bellido},
  journal={Reaction Kinetics, Mechanisms and Catalysis},
  year={2019},
  pages={1 - 19}
}
Ni catalysts supported on alumina with various lanthanum contents were prepared by the one-step polymerization method to form catalytic precursors that allow better dispersion of the active nickel metal and improve the Ni-La interaction in catalysts containing Ni, Al and La. The characterization of the materials was performed by XRD analysis, N2 adsorption–desorption, H2-temperature programmed reduction, CO2 and H2-temperature programmed desorption and scanning electron microscopy. The… Expand

Figures and Tables from this paper

Methane dry reforming over nickel-based catalysts: insight into the support effect and reaction kinetics
The nickel-based catalysts supported on MgO-modified α-Al2O3, CeO2, and SBA-15 were prepared by impregnation method and investigated by N2 physisorption measurements, powder X-ray diffraction, RamanExpand
Study of the perovskite-type catalysts 40LaNi0.75Fe0.25−X MXO3/SiO2 (M=Ce, Zr) for the dry reforming of methane
A series of perovskite-type oxide catalysts 40LaNi0.75Fe0.25−xMxO3/SiO2 (M=Ce, Zr) were synthesized by the citrate sol–gel method. The synthesized catalysts were characterized by various techniquesExpand
Ni,Co/SiO2 and Ni/SiO2,Co bimetallic microsphere catalysts indicating high activity and stability in the dry reforming of methane
Two separate synthesis procedures were applied to alter the location of Cobalt (Co) in bimetallic silica (SiO2) microsphere catalyst with Nickel (Ni) as the second active metal. Co was eitherExpand
Synthesis strategies of Zr- and Y-promoted mixed oxides derived from double-layered hydroxides for syngas production via dry reforming of methane
Abstract Ni-based Mg/Al double-layered hydroxides, also called hydrotalcites (HTs), were co-precipitated with Zr (5 wt%) and impregnated with Y (0.2, 0.4, 0.6 wt%), and compared to the catalystExpand
Controlling the Reduction Extent for Optimal Performance of a Ni/Al2O3 Dry Reforming Catalyst
Published by United Scientific Group Abstract Dry reforming of methane converts two greenhouse gases (CH4 and CO2) into valuable syngas (H2 and CO). Ni catalysts are commonly used for this reactionExpand
Kinetics of steam reforming of methane on Rh–Ni/MgAl2O4 catalyst
The kinetics of the steam reforming of methane was studied on 0.5 wt% Rh–15 wt% Ni/MgAl2O4 catalyst. The variation of methane conversion with contact time (W/FCH4,0\documentclass[12pt]{minimal}Expand
Stability Studies of Proteinous Compounds
Protein stability is a subject of great interest to the pharmaceutical, biotechnological, and food industry, as well as, for academic researchers who are studying proteins on regular basis. TheExpand
Drug Stability and Chemical Kinetics
Pharmaceutical analysis as a separate discipline plays an important role in identification and quantification of ingredients in pharmaceutical formulations. The advancement in pharmaceuticals isExpand

References

SHOWING 1-10 OF 53 REFERENCES
Enhanced catalytic activity of Ni–Mo2C/La2O3–ZrO2 bifunctional catalyst for dry reforming of methane
A series of Ni-modified Mo2C catalysts with La2O3-stabilized ZrO2 supports were synthesized via template method coupled with incipient wetness impregnation and temperature-programmed carbonization.Expand
Effect of the Y2O3–ZrO2 support composition on nickel catalyst evaluated in dry reforming of methane
Abstract Nickel catalysts with a load of 5 wt.% Ni, supported on pure ZrO 2 and ZrO 2 stabilized with 4 mol%, 8 mol% and 12 mol% of Y 2 O 3 , were prepared by the polymerization method. The samplesExpand
Dry reforming of methane to syngas over lanthanum-modified mesoporous nickel aluminate/γ-alumina nanocomposites by one-pot synthesis
Abstract La-modified NiAl2O4/γ-Al2O3−La composites with mesoporous structures were prepared by one-pot template-free strategy and applied for dry reforming of methane (DRM) to syngas. TheExpand
CO2 reforming of CH4 over La–Ni based perovskite precursors
Abstract LaNiO3 and La2NiO4 type perovskites were prepared by the “self-combustion” method and were used as catalyst precursors for the CO2 reforming of CH4 reaction at 700 °C. The catalysts wereExpand
Ni catalysts for steam gasification of biomass: Effect of La2O3 loading
Abstract La2O3 promoted Ni/γ-Al2O3 fluidizable catalysts are studied for the steam gasification of a cellulose surrogate (glucose) and a lignin surrogate (2-methoxy-4-methylphenol) in a CREC RiserExpand
Effect of adding CaO to ZrO2 support on nickel catalyst activity in dry reforming of methane
Abstract Nickel catalysts with a load of 5 wt% Ni, supported on pure ZrO 2 and ZrO 2 stabilized with 4, 8 and 14 mol% CaO, were prepared by the polymerization method. The samples were characterizedExpand
Effect of lanthanide promotion on catalytic performance of sol–gel Ni/Al2O3 catalysts in steam reforming of propane
Abstract The effect of lanthanide elements (La, Ce, and Yb) on the catalytic behavior of sol–gel Ni/Al 2 O 3 catalysts in propane steam reforming was investigated. Steady-state reaction experimentsExpand
In situ XRD characterization of LaNiAlO model catalysts for CO2 reforming of methane
In situ XRD studies have been performed on LaNiAlO catalysts for CO2 reforming of methane. Conditions were chosen to get information about catalysts used in fluidized bed reactors. Gas products wereExpand
Synthesis of alumina supported nickel nanoparticle catalysts and evaluation of nickel metal dispersions by temperature programmed desorption
Abstract The purpose of this study was to synthesize highly dispersed Ni/Al2O3 catalysts and to develop a suitable hydrogen-temperature programmed desorption (H2-TPD) method for the determination ofExpand
Oxidative-reforming of model biogas over NiO/Al2O3 catalysts: The influence of the variation of support synthesis conditions
Abstract In this study, nickel catalysts (20 wt%) supported on γ-Al 2 O 3 were prepared by the impregnation method. The γ-Al 2 O 3 , was synthesized by precipitation of bayerite gel obtained fromExpand
...
1
2
3
4
5
...