Catalytic reduction of 4-nitrophenol over Ni-Pd nanodimers supported on nitrogen-doped reduced graphene oxide

Liu, Lijun; Chen, Ruifen; Liu, Weikai; Wu, Jiamin; Gao, Di

doi:10.1016/j.jhazmat.2016.08.019

Cited by 128 publications

(39 citation statements)

References 48 publications

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“…However, this reduction reaction would not take place without the presence of a metal catalyst. [1][2][3][4][5][6] For many years, precious and non-precious transition metals have been used as efficient catalysts in catalytic reactions. Nevertheless, highly expensive metals such as platinum and palladium on carbon utilized for this kind of reaction are ammable when exposed to air and require an inert atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Flower-like 3-dimensional hierarchical Co₃O₄/NiO microspheres for 4-nitrophenol reduction reaction

et al. 2019

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Section: Introductionmentioning

confidence: 99%

Flower-like 3-dimensional hierarchical Co₃O₄/NiO microspheres for 4-nitrophenol reduction reaction

et al. 2019

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“…Generally, the chemical reduction of NiP is an easy process and it follows the pseudo first-order kinetics on catalytic reduction reaction. Liu et al (2016) reported the catalytic reduction of NiP over Ni-Pd nanoparticle. Dai et al (2016) studied the catalytic reduction of NiP with the help of amphiphilic hyperbranched polymer-encapsulated Au nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Catalytic activity of Ni complexed aminoclay towards the reduction of Cr(V), p-nitrophenol and fluorescein dye

Ranchani

Parthasarathy

Devi³

et al. 2017

Appl Nanosci

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A green-colored Ni-complexed aminoclay (AC) was synthesized and its size and crystalline nature were confirmed by HRTEM images and XRD, respectively. The AC-Ni system was used as a catalyst towards the reduction of environmental pollutants like Cr(VI), fluorescein (Fluor) and nitrophenol (NiP) individually and also their mixture. The catalytic reduction of Cr(VI) was elaborately studied under different experimental conditions. The thermodynamic parameters were determined. The AC-Ni system exhibited lower energy of activation (E a ) value. The apparent rate constant of individual components and their mixture was determined, analyzed and compared with the literature reports. The pollutants present in the mixture exhibited the lower k app value due to the complex formation.

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“…The electronic and geometric modifications can be attained by tuning the bimetallic structure, surface composition, particle size, and its distribution. Hence, low quantities of Pd have been combined with other lower-priced metals to generate bimetallic nano-catalysts such as CuPd [14] or NiPd [15], with promising results in the reduction reaction of 4-NP.…”

Section: Introductionmentioning

confidence: 99%

CuPd Bimetallic Nanoparticles Supported on Magnesium Oxide as an Active and Stable Catalyst for the Reduction of 4-Nitrophenol to 4-Aminophenol

Morales¹

2018

Int. J. Green Technol.

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Abstract:In this work, we report the synthesis and characterization of a catalyst based on bimetallic CuPd nanostructures generated over a magnesium oxide support. Its catalytic activity and reusability have been tested in the reduction of 4-nitrophenol as a model reaction using NaBH4 as the source of hydrogen for the reduction of the nitro-group. The structure, composition and morphology of the catalysts were studied by N2 physisorption, X-ray diffraction (XRD), Transmission Electron Microscopy (TEM) and X-ray Photoelectron Spectroscopy (XPS). The reaction kinetics of reduction of 4-nitrophenol to 4-aminophenol has been followed by UV-visible spectrophotometry, and its apparent rate constant has been determined and compared with its monometallic counterparts. All the tested catalysts exhibited remarkable high activity and excellent stability upon reuse for multiple consecutive cycles. We found out that a small loading addition of Pd to Cu catalyst greatly improved the catalytic activity in comparison with the monometallic samples. Our characterization results pointed out a higher metallic dispersion degree as the main explanation for this enhanced performance. CuPd/MgO is highly competitive or outperforms the catalytic activity of other bimetallic systems reported in literature.

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Catalytic reduction of 4-nitrophenol over Ni-Pd nanodimers supported on nitrogen-doped reduced graphene oxide

Cited by 128 publications

References 48 publications

Flower-like 3-dimensional hierarchical Co₃O₄/NiO microspheres for 4-nitrophenol reduction reaction

Flower-like 3-dimensional hierarchical Co₃O₄/NiO microspheres for 4-nitrophenol reduction reaction

Catalytic activity of Ni complexed aminoclay towards the reduction of Cr(V), p-nitrophenol and fluorescein dye

CuPd Bimetallic Nanoparticles Supported on Magnesium Oxide as an Active and Stable Catalyst for the Reduction of 4-Nitrophenol to 4-Aminophenol

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Catalytic reduction of 4-nitrophenol over Ni-Pd nanodimers supported on nitrogen-doped reduced graphene oxide

Cited by 128 publications

References 48 publications

Flower-like 3-dimensional hierarchical Co3O4/NiO microspheres for 4-nitrophenol reduction reaction

Flower-like 3-dimensional hierarchical Co3O4/NiO microspheres for 4-nitrophenol reduction reaction

Catalytic activity of Ni complexed aminoclay towards the reduction of Cr(V), p-nitrophenol and fluorescein dye

CuPd Bimetallic Nanoparticles Supported on Magnesium Oxide as an Active and Stable Catalyst for the Reduction of 4-Nitrophenol to 4-Aminophenol

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Flower-like 3-dimensional hierarchical Co₃O₄/NiO microspheres for 4-nitrophenol reduction reaction

Flower-like 3-dimensional hierarchical Co₃O₄/NiO microspheres for 4-nitrophenol reduction reaction