Electron transfer-induced catalytic enhancement over bismuth nanoparticles supported by N-doped graphene

Shuangzhi, Li; Ming, Yang; Liu, Lijun; Zhao, Qing

doi:10.1016/j.cej.2017.11.127

Cited by 54 publications

(21 citation statements)

References 52 publications

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“…24 It is also noted that some reported hybrid or noble metal-based systems are more efficient, but are not as cost-effective as our system. 16,25 The reusability of the Bi nanocatalyst for the reduction of 4-NP by NaBH 4 was investigated. The Bi nanodots were recycled and used repeatedly up to three cycles, showing its practicality for 4-NP reduction.…”

Section: Resultsmentioning

confidence: 99%

“…Another attractive approach in developing nanocatalysts is through the fabrication of nanohybrids that aim to achieve high catalytic activity as shown by Li et al, who designed Bi nanoparticles supported by N-doped graphene. 16 Although some of the current research studies have investigated the fabrication of nanoscale bismuth through simpler approaches, 5b,14g,17 the use of toxic reductants and/or organic solvent are still inevitable during synthesis. Therefore, it remains desirable to develop a facile and green method for the synthesis of high-quality bismuth nanoparticles in aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

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Facile Aqueous-Phase Synthesis of an Ultrasmall Bismuth Nanocatalyst for the Reduction of 4-Nitrophenol

et al. 2019

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Bismuth metallic nanoparticles have evoked considerable interest in catalysis owing to their small size, high surface area-to-volume ratio, and low toxicity. However, the need for toxic reductants and organic solvents in their synthesis often limits their desirability for application development. Here, we describe a green strategy to synthesize bismuth nanodots via the redox reactions between bismuth nitrate and d-glucose, in the presence of poly(vinylpyrrolidone) in the basic aqueous phase. Both reagents play a crucial role in the formation of monodisperse bismuth nanodots acting as mild reducing and capping agents, respectively. We further demonstrate that the catalytic activity of these dots via the successful reduction of the environmental contaminant 4-nitrophenol to its useful 4-aminophenol analogue requiring only 36 μg/mL nanocatalyst for 20 mM of the substrate. Moreover, they can be recovered and recycled in multiple reactions before the onset of an appreciable loss of catalytic activity. The proposed facile synthetic route and inexpensive matrix materials lead the way to access bismuth nanodots for both the fundamental study of reactions and their industrial catalysis applications.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Facile Aqueous-Phase Synthesis of an Ultrasmall Bismuth Nanocatalyst for the Reduction of 4-Nitrophenol

et al. 2019

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“…It is also worth mentioning that Bi is an environmentally friendly element and has been proposed to be used as an electrode for sensing noxious metals . Thus Bi is an ideal material for the prospective exploitation in nanoelectronics. − In fact, the electronic states and physical properties of Bi nanostructures are closely related to the surface orientation, and the controllable fabrication is essential to the applications.…”

mentioning

confidence: 99%

Nanostructured Bi Grown on Epitaxial Graphene/SiC

Xin

Zhang

et al. 2018

J. Phys. Chem. Lett.

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Controllable growth of metal nanostructures on epitaxial graphene (EG) is particularly interesting and important for the applications in electric devices. Bi nanostructures on EG/SiC are fabricated through thermal decomposition of SiC and subsequent low-flux evaporation of Bi. The orientation, atomic structure, and thickness-dependent electronic states of Bi are investigated by scanning tunneling microscopy/spectroscopy. It is found that metallic Bi nanoflakes and nanorods prefer to grow on the SiC buffer layer region with higher diffusion barrier, but Bi nanoribbons are formed on regularly ordered EG. Although the thicker Bi nanoribbons of 11 monolayers on EG are still metallic, the thinner ones become semiconducting owing to the interfacial effect. This indicates that the electronic states and physical properties of Bi are substrate-dependent. The results are helpful for the design of Bi- and graphene-based electronic and spintronic devices.

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“…Hydrogenation of p -nitrophenol to p -aminophenol has important applications in the chemical industry and medicine . The process is kinetically limited in the absence of a catalyst, even though it is thermodynamically feasible . Therefore, the hydrogenation of p -nitrophenol to p -aminophenol was chosen to investigate the catalytic performance of the as-synthesized catalysts.…”

Section: Resultsmentioning

confidence: 99%

Pd Nanoparticles Immobilized in Layered ZIFs as Efficient Catalysts for Heterogeneous Catalysis

Liu

Jiang

Liu

et al. 2019

Ind. Eng. Chem. Res.

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Two-dimensional catalysts show outstanding catalytic performance due to their distinct laminar structure and electronic properties. A facile synthesis of layered catalysts with superior catalytic performance remains a significant challenge. Herein, a novel layered Pd@ZIF-L-Co catalyst is synthesized via a facile in situ method; additionally, a series of transitional catalysts and a three-dimensional Pd@ZIF-67 catalyst are obtained by simply adjusting the ratio of water to methanol in the solvent. Characterizations of the catalysts reveal that layered ZIF-L-Co is beneficial in the dispersion and exposure of Pd NPs, and strong interactions exist between the layered ZIF framework and the PVP-Pd. The as-fabricated Pd@ZIF-L-Co shows superior catalytic properties in the reduction of nitroarenes with NaBH4, with a TOF value that is three times higher than that of Pd@ZIF-67. This work presents the design and synthesis of layered ZIF-based catalysts.

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Electron transfer-induced catalytic enhancement over bismuth nanoparticles supported by N-doped graphene

Cited by 54 publications

References 52 publications

Facile Aqueous-Phase Synthesis of an Ultrasmall Bismuth Nanocatalyst for the Reduction of 4-Nitrophenol

Facile Aqueous-Phase Synthesis of an Ultrasmall Bismuth Nanocatalyst for the Reduction of 4-Nitrophenol

Nanostructured Bi Grown on Epitaxial Graphene/SiC

Pd Nanoparticles Immobilized in Layered ZIFs as Efficient Catalysts for Heterogeneous Catalysis

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