The preferential oxidation of CO in hydrogen rich streams over platinum doped nickel oxide catalysts

Mohamed, Ziyaad; Dasireddy, Venkata D.B.C.; Singh, Sooboo; Friedrich, Holger B.

doi:10.1016/j.apcatb.2015.07.012

Cited by 45 publications

(29 citation statements)

References 45 publications

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“…The adsorption–desorption isotherms of the samples have the features of a Type IV isotherm with H1 hysteresis loop . The initial part of the isotherm is attributed to the monolayer–multilayer adsorption which is similar to a Type II isotherm . The hysteresis effect shown in the isotherm is an indication of the porosity of the synthesized NiO samples.…”

Section: Resultsmentioning

confidence: 99%

“…65 The initial part of the isotherm is attributed to the monolayer-multilayer adsorption which is similar to a Type II isotherm. 66 The hysteresis effect shown in the isotherm is an indication of the porosity of the synthesized NiO samples. Table III shows the surface area and pore size of NiO samples obtained at various processing parameters.…”

Section: (6) Bet Surface Areamentioning

confidence: 99%

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Synthesis and Characterization of NiO Nano‐Spheres by Templating on Chitosan as a Green Precursor

et al. 2016

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In this study, nickel oxide was prepared through the calcination of extrusion dripped chitosan/nickel nitrate beads. The morphology and structural properties of the products were studied using various characterization techniques. Uniformly distributed nickel oxide was formed as observed from the studies of surface morphology where the processing parameters play a huge role on the resulting morphology. TEM results have shown that nickel oxide with crystallite sizes of 10–30 nm was obtained. The Fourier-transform infrared spectra studies show an intense peak at 525 cm−1, which is attributed to the vibration of Ni–O bond. Furthermore, the XRD results show NiO diffraction peaks correspond to (111), (200), (220), (311), and (222) which indicates that a bunsenite structure with a face-centered cubic phase was produced in this study. The usage of 500°C as the lower limit in this study is justified due to the complete removal of the templating material as seen in the thermalgravimetric analysis studies. Furthermore, it was obtained that the largest surface area of nickel oxide synthesized using this technique is 48.024 m2/g with pore sizes of 19.843 nm. The usage of chitosan as a green template for the synthesis of nanoparticles has shown promising results which allows a more economical and sustainable approach for the fabrication of nanomaterials

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Section: Resultsmentioning

confidence: 99%

Section: (6) Bet Surface Areamentioning

confidence: 99%

Synthesis and Characterization of NiO Nano‐Spheres by Templating on Chitosan as a Green Precursor

et al. 2016

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“…Nevertheless, ALD stands out as an ideal and appealing technique for emerging applications to functionalize NPs with tunable optical and electrical properties, chemical performance, structures, etc. [22,23].…”

Section: Introductionmentioning

confidence: 99%

Surface functionalization on nanoparticles via atomic layer deposition

et al. 2020

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“…[1][2][3] Recent analyses revealed unprecedented activity of dual metal components in the reduction reactions as compared to their monometallic counterparts. [4][5][6] It is wellknown that the combined geometric and electronic effects are the key reasons for cooperative and synergistic catalytic performances between two metals present in the catalysts. [7][8][9][10] For example, NiÀ Mo bimetallics supported on different metal oxides were found to exhibit enhanced activity particularly in hydrodeoxygenation and dehydrosulfurization reactions.…”

Section: Introductionmentioning

confidence: 99%

Conversion of γ‐Valerolactone to Ethyl Valerate over Metal Promoted Ni/ZSM‐5 Catalysts: Influence of Ni⁰/Ni²⁺ Heterojunctions on Activity and Product Selectivity

et al. 2020

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Promoter (Cr, Mo and W) modified Ni/ZSM‐5 catalysts were explored in the vapor phase conversion of γ‐valerolactone (GVL) to ethyl valerate (EV; gasoline blender) at atmospheric pressure. Among the three different promoters (Cr, Mo and W) tested the Mo‐modified catalyst was found to be the best candidate. In addition, this catalyst was found to be stable up to 50 h reaction time with an insignificant decrease in activity. The good catalytic performance is related to an optimal ratio of acid and hydrogenation functions provided by Ni2+ and Ni0, respectively. In situ FTIR spectroscopic studies revealed a strong adsorption of GVL on all catalysts which quickly reacts with dosed ethanol by formation of EV, most pronounced on the Mo‐modified catalyst, while VA was identified as side product. These findings suggest the preferred GVL ring opening by cracking the C−O bond on the methyl side of the GVL molecule on this type of catalysts leading to pentenoic acid as intermediate, which is quickly hydrogenated and esterified.

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The preferential oxidation of CO in hydrogen rich streams over platinum doped nickel oxide catalysts

Cited by 45 publications

References 45 publications

Synthesis and Characterization of NiO Nano‐Spheres by Templating on Chitosan as a Green Precursor

Synthesis and Characterization of NiO Nano‐Spheres by Templating on Chitosan as a Green Precursor

Surface functionalization on nanoparticles via atomic layer deposition

Conversion of γ‐Valerolactone to Ethyl Valerate over Metal Promoted Ni/ZSM‐5 Catalysts: Influence of Ni⁰/Ni²⁺ Heterojunctions on Activity and Product Selectivity

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The preferential oxidation of CO in hydrogen rich streams over platinum doped nickel oxide catalysts

Cited by 45 publications

References 45 publications

Synthesis and Characterization of NiO Nano‐Spheres by Templating on Chitosan as a Green Precursor

Synthesis and Characterization of NiO Nano‐Spheres by Templating on Chitosan as a Green Precursor

Surface functionalization on nanoparticles via atomic layer deposition

Conversion of γ‐Valerolactone to Ethyl Valerate over Metal Promoted Ni/ZSM‐5 Catalysts: Influence of Ni0/Ni2+ Heterojunctions on Activity and Product Selectivity

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Conversion of γ‐Valerolactone to Ethyl Valerate over Metal Promoted Ni/ZSM‐5 Catalysts: Influence of Ni⁰/Ni²⁺ Heterojunctions on Activity and Product Selectivity