Liquid phase hydrogenation of furfural to biofuel over robust NiCu/Laponite catalyst: A study on the role of copper loading

Umasankar, S.; Krishnan, P. Santhana; Theres, G. Sonia; Tamizhdurai, P.; Shanthi, K.

doi:10.1016/j.apt.2021.06.012

Cited by 7 publications

(1 citation statement)

References 49 publications

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“…Ni-supported Zr-pillared Laponite RD exhibited good catalytic activity in methane reforming . We previously modified Laponite RD via a chemical method and used it for hydrodeoxygenation − and NH 3 decomposition . Laponite also facilitated the dispersion of active metal species and promoted their interaction with the reactants.…”

Section: Introductionmentioning

confidence: 99%

Unravelling the Role of Zr–Laponite Supports in Enhancing the Activity of a MnNi Catalyst for the Low-Temperature NH₃-Selective Catalytic Reduction Reaction

Perumal,

Yu,

Aghalayam

et al. 2024

Energy Fuels

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Novel catalysts must be developed for the low-temperature NH 3 -selective catalytic reduction (SCR) of nitrogen oxides (NO x ) produced in power plants, factories, and automobiles, because NO x emissions are harmful to human health and the environment. In this study, Mn and Ni oxides are impregnated on Zr−Laponite clay supports containing different amounts (1, 3, 5, and 7 wt %) of Tergitol surfactant. The NO x removal (deNO x ) efficiencies of these catalysts during NH 3 -SCR were evaluated at 100−340 °C with different O 2 concentrations. Zr pillaring in the Zr−Laponites improved their textural properties and morphology, as evidenced by X-ray diffraction, N 2 sorption isotherms, high-resolution scanning and transmission electron microscopy, H 2 -temperature-programmed reduction, NH 3 -temperature-programmed desorption, and X-ray photoelectron spectroscopy. MnNi/Zr−Laponite(3 wt %) demonstrated the highest deNO x activity (90%), highest turnover frequency (19 × 10 −2 s −1 ), and lowest activation energy (22.4 kJ/ mol) among the MnNi/Zr−Laponites and MnNi/ZrO 2 at 220 °C with good recyclability for 6 cycles and time-on-stream stability. These novel bimetallic Laponite catalysts have practical applications for NO x removal via NH 3 -SCR.

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Section: Introductionmentioning

confidence: 99%

Unravelling the Role of Zr–Laponite Supports in Enhancing the Activity of a MnNi Catalyst for the Low-Temperature NH₃-Selective Catalytic Reduction Reaction

Perumal,

Yu,

Aghalayam

et al. 2024

Energy Fuels

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Effect of Cu Content on Structure of NiCu Alloy Catalyst and Catalytic Performance for Nitroarenes Hydrogenation

et al. 2022

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Carbon doped silica-supported NiCu alloy nanoparticles (Ni 1 Cu x /C@SiO 2 ) with different Cu/Ni molar ratio (x = 0.12, 0.24, 0.36) were fabricated via one-step impregnation, following in situ carbonization reduction. Effects of Cu content on catalyst structure, surface properties and particle sizes were investigated by Brunauer-Emmett-Teller (BET), inductively coupled plasma (ICP), Raman, X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The surface Ni 0 content increased with increasing Cu content, but showed a maximum at 0.24 of Cu/Ni molar ratio, because the smaller NiCu alloy nanoparticle formed and the segregation of antioxidative Cu atoms on the surface protected the metallic Ni from oxidation. The Ni 1 Cu x /C@SiO 2 were investigated for nitrobenzene hydrogenation with H 2 . The optimal Ni 1 Cu 0.24 /C@SiO 2 catalyst with the highest Ni 0 content showed markedly improved catalytic activity compared to monometallic Ni/C@SiO 2 . The Ni 0 species were the active sites for the hydrogenation of nitrobenzene. The Ni 1 Cu 0.24 /C@SiO 2 could transform various substituted nitroarenes to corresponding aromatic amines. Moreover, the Ni 1 Cu 0.24 /C@SiO 2 could be recycled for 8 times without decrease in catalytic performance, exhibiting superior anti-oxidation and anti-leaching abilities.

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Aerosol-phase synthesis of bimetallic NiCu oxide-decorated CeO2 nanoparticle cluster for catalytic methane combustion

Du¹,

Law²,

Huang³

et al. 2022

Advanced Powder Technology

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Liquid phase hydrogenation of furfural to biofuel over robust NiCu/Laponite catalyst: A study on the role of copper loading

Cited by 7 publications

References 49 publications

Unravelling the Role of Zr–Laponite Supports in Enhancing the Activity of a MnNi Catalyst for the Low-Temperature NH₃-Selective Catalytic Reduction Reaction

Unravelling the Role of Zr–Laponite Supports in Enhancing the Activity of a MnNi Catalyst for the Low-Temperature NH₃-Selective Catalytic Reduction Reaction

Effect of Cu Content on Structure of NiCu Alloy Catalyst and Catalytic Performance for Nitroarenes Hydrogenation

Aerosol-phase synthesis of bimetallic NiCu oxide-decorated CeO2 nanoparticle cluster for catalytic methane combustion

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Liquid phase hydrogenation of furfural to biofuel over robust NiCu/Laponite catalyst: A study on the role of copper loading

Cited by 7 publications

References 49 publications

Unravelling the Role of Zr–Laponite Supports in Enhancing the Activity of a MnNi Catalyst for the Low-Temperature NH3-Selective Catalytic Reduction Reaction

Unravelling the Role of Zr–Laponite Supports in Enhancing the Activity of a MnNi Catalyst for the Low-Temperature NH3-Selective Catalytic Reduction Reaction

Effect of Cu Content on Structure of NiCu Alloy Catalyst and Catalytic Performance for Nitroarenes Hydrogenation

Aerosol-phase synthesis of bimetallic NiCu oxide-decorated CeO2 nanoparticle cluster for catalytic methane combustion

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Product

Resources

About

Unravelling the Role of Zr–Laponite Supports in Enhancing the Activity of a MnNi Catalyst for the Low-Temperature NH₃-Selective Catalytic Reduction Reaction

Unravelling the Role of Zr–Laponite Supports in Enhancing the Activity of a MnNi Catalyst for the Low-Temperature NH₃-Selective Catalytic Reduction Reaction