Recent advances in the use of nitrogen-doped carbon materials for the design of noble metal catalysts

Fiorio, Jhonatan Luiz; Garcia, Marco Aurélio Suller; Gothe, Maitê L.; Galvan, Diego; Troise, Paula Castellani; Conté-Júnior, Carlos Adam; Vidinha, Pedro; Camargo, Pedro H. C.; Rossi, Liane M.

doi:10.1016/j.ccr.2023.215053

Cited by 45 publications

(28 citation statements)

References 183 publications

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“…To evaluate the adsorption capacity of 2D-NCMs to stabilize TMs, we also calculated the tetragonal and hexagonal nitrogendoped graphene (T/H-N x -G, x = 3 or 4), which is a well-known carrier for stabilizing TMs and has been used successfully in various important catalytic reactions after anchoring TMs. 53,54 The structures of TM@3/4T-3 : 0 and TM@T-N 3/4 -G, which serve as representatives, are shown in Fig. 6a-d.…”

Section: Adsorption Of Transition Metalsmentioning

confidence: 99%

The effective regulation of heterogeneous N-heterocyclic carbenes: structures, electronic properties and transition metal adsorption

Liu,

Sun,

Xie

et al. 2023

Phys. Chem. Chem. Phys.

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Section: Adsorption Of Transition Metalsmentioning

confidence: 99%

The effective regulation of heterogeneous N-heterocyclic carbenes: structures, electronic properties and transition metal adsorption

Liu,

Sun,

Xie

et al. 2023

Phys. Chem. Chem. Phys.

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“…The resulting N-containing, porous carbon materials showed remarkable catalytic activity toward the aerobic oxidation of benzyl alcohol with almost 99% selectivity. Apart from these, several other studies have been reported on the use of heteroatom-doped, supported catalysts for the oxidation of alcohols …”

Section: Introductionmentioning

confidence: 99%

Green, Solvent-Free Mechanochemical Synthesis of Nano Ag₂O/MnO₂/N-Doped Graphene Nanocomposites: An Efficient Catalyst for Additive-Base-Free Aerial Oxidation of Various Kinds of Alcohols

Hatshan,

Khan,

Assal

et al. 2024

ACS Omega

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Herein, we report a solvent-less, straightforward, and facile mechanochemical technique to synthesize nanocomposites of Ag 2 O nanoparticles-doped MnO 2 , which is further codoped with nitrogen-doped graphene (N-DG) [i.e., (X %)N-DG/MnO 2 −(1% Ag 2 O)] using physical milling of separately prepared N-DG and Ag 2 O NPs−MnO 2 annealed at 400 °C over an eco-friendly ball-mill process. To assess the efficiency in terms of catalytic performance of the nanocomposites, selective oxidation of benzyl alcohol (BlOH) to benzaldehyde (BlCHO) is selected as a substrate model with an ecofriendly oxidizing agent (O 2 molecule) and without any requirements for the addition of any harmful additives or bases. Various nanocomposites were prepared by varying the amount of N-DG in the composite, and the results obtained highlighted the function of N-DG in the catalyst system when they are compared with the catalyst MnO 2 −(1% Ag 2 O) [i.e., undoped catalyst] and MnO 2 −(1% Ag 2 O) codoped with different graphene dopants such as GRO and H-RG for alcohol oxidation transformation. The effects of various catalytic factors are systematically evaluated to optimize reaction conditions. The N-DG/MnO 2 −(1% Ag 2 O) catalyst exhibits premium specific activity (16.0 mmol/h/g) with 100% BlOH conversion and <99.9% BlCHO selectivity within a very short interval. The mechanochemically prepared N-DG-based nanocomposite displayed higher catalytic efficacy than that of the MnO 2 −(1% Ag 2 O) catalyst without the graphene dopant, which is N-DG in this study. A wide array of aromatic, heterocyclic, allylic, primary, secondary, and aliphatic alcohols have been selectively converted to respective ketones and aldehydes with full convertibility without further oxidation to acids over N-DG/MnO 2 −(1% Ag 2 O). Interestingly, it is also found that the N-DG/MnO 2 −(1% Ag 2 O) can be efficiently reused up to six times without a noteworthy decline in its effectiveness. The prepared nanocomposites were characterized using various analytical, microscopic, and spectroscopic techniques such as X-ray diffraction, thermogravimetric analysis, Fourier-transform infrared spectroscopy, Raman, field emission scanning electron microscopy, and Brunauer−Emmett−Teller.

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“…N-doped carbonaceous materials (NCMs) have always been a research hotspot due to their significant advancements in various applications, including renewable energy conversion, electrocatalysis, and environmental remediation . It has been commonly acknowledged that the introduction of nitrogen (N) should be highly valuable as it can greatly modify the physical and chemical properties of NCMs . Specifically, the n-type N dopant can alter the electroneutral states of intercarbon (C) in the hexagonal topological structure, making the C atom neighboring the N atom to be more active in different applications .…”

Section: Introductionmentioning

confidence: 99%

Bamboo-like Carbon Nanotubes with the Theoretical Upper-Limit N-Doping Concentration for Advanced Nonradical Oxidation

Zhang,

Hong,

Gao

et al. 2023

ACS Appl. Nano Mater.

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Increasing the N-doping concentration has been recognized as one of the most effective strategies to improve the potential properties of carbonaceous materials in energy, the environment, and other fields. However, the instability of N dopants at high temperatures makes the N-doping concentration far from the theoretical upper limit. Herein, we prepared bamboo-like carbon nanotubes (BCNTs) with a theoretically upper-limited N-doping concentration via one-step pyrolysis of zinc cyanamide in the presence of Ni ions. The N-doping concentration of optimized BCNT-5 reached 12.45 atom %, approximate to the theoretical upper limit of 12.50 atom % at a carbonization temperature of 1000 °C. By using peroxymonosulfate-based advanced oxidation processes as an example, BCNT-5 exhibited excellent catalytic performance for nonradical tetracycline degradation with good versatility and adaptability. Graphitic N was demonstrated to be the active site for nonradical peroxymonosulfate activation. Our work provided a facile and effective strategy for ultrahigh N-doping and morphology regulation in carbonaceous materials toward different applications.

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Recent advances in the use of nitrogen-doped carbon materials for the design of noble metal catalysts

Cited by 45 publications

References 183 publications

The effective regulation of heterogeneous N-heterocyclic carbenes: structures, electronic properties and transition metal adsorption

The effective regulation of heterogeneous N-heterocyclic carbenes: structures, electronic properties and transition metal adsorption

Green, Solvent-Free Mechanochemical Synthesis of Nano Ag₂O/MnO₂/N-Doped Graphene Nanocomposites: An Efficient Catalyst for Additive-Base-Free Aerial Oxidation of Various Kinds of Alcohols

Bamboo-like Carbon Nanotubes with the Theoretical Upper-Limit N-Doping Concentration for Advanced Nonradical Oxidation

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Recent advances in the use of nitrogen-doped carbon materials for the design of noble metal catalysts

Cited by 45 publications

References 183 publications

The effective regulation of heterogeneous N-heterocyclic carbenes: structures, electronic properties and transition metal adsorption

The effective regulation of heterogeneous N-heterocyclic carbenes: structures, electronic properties and transition metal adsorption

Green, Solvent-Free Mechanochemical Synthesis of Nano Ag2O/MnO2/N-Doped Graphene Nanocomposites: An Efficient Catalyst for Additive-Base-Free Aerial Oxidation of Various Kinds of Alcohols

Bamboo-like Carbon Nanotubes with the Theoretical Upper-Limit N-Doping Concentration for Advanced Nonradical Oxidation

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Green, Solvent-Free Mechanochemical Synthesis of Nano Ag₂O/MnO₂/N-Doped Graphene Nanocomposites: An Efficient Catalyst for Additive-Base-Free Aerial Oxidation of Various Kinds of Alcohols