Schiff-base polymer derived ultralong FeCo/N-doped carbon nanotubes as bifunctional oxygen electrocatalyst for liquid and flexible all-solid-state rechargeable zinc–air batteries

Deng, Yusong; Zheng, Jiahui; Liu, Bei; Li, Huaming; Yang, Mei

doi:10.1016/j.carbon.2023.04.006

Cited by 14 publications

(4 citation statements)

References 74 publications

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“…However, in the XRD pattern of P-900, the intensity of ZnNCN decreased remarkably; instead, the peaks attributed to Zn(CN) 2 became dominant . As the temperature increased to 1000 °C, BCNT-5 was formed as the characteristic diffraction of graphite appeared at 26.5° . Also, as presented in the FT-IR spectra (Figure c), the vibration peaks of (NCN) 2 – located at 2046 and 671 cm –1 could be found in the FT-IR spectra of ZnNCN-5, P-700, and P-900 .…”

Section: Resultsmentioning

confidence: 90%

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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Section: Resultsmentioning

confidence: 90%

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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“…2d). 27–29 Compared with the Co 2p spectrum of Co@N-C, the peak of Co 0 moves positively towards the binding energy, and the peak of Co 2+ moves inversely towards the binding energy. These changes in peak position are due to the modulation of charge distribution by alloying of Fe and Co. 30,31 The C 1s XPS spectrum (Fig.…”

Section: Resultsmentioning

confidence: 99%

FeCo alloy nanoparticles encapsulated in hollow N-doped carbon as a bifunctional electrocatalyst for aqueous zinc–air batteries with a low voltage gap

Li,

Yang,

Lou

et al. 2023

Sustainable Energy Fuels

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“…In the Raman spectra (Figure 6), distinct peaks around 1346 cm −1 and 1586 cm −1 belong to the D band of disordered graphitic carbon and the G band arising due to the stretching vibrations of the C-C bond in the graphite lattice plane. The intensity ratio of the D and G bands (ID/IG) may reflect the relative amounts of graphitic structure and disordered structure in the carbon components [29][30][31]. The ratio of band intensities for samples 1, 2, 3, and 4 is about 0.8, which indicates a high degree of ordering of graphitization, which increases during catalytic tests [32].…”

Section: Physicochemical Results and Discussionmentioning

confidence: 99%

CO2 Hydrogenation over Fe-Co Bimetallic Catalyst Derived from the Thermolysis of [Co(NH3)6][Fe(CN)6]

Gosteva,

Kulikova,

Ivantsov

et al. 2023

Catalysts

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Reducing the amount of CO2 in the atmosphere is a very important task. Therefore, the development and search for new approaches to the synthesis of catalytic systems, allowing for the catalytic conversion of CO2 into valuable products, is an urgent task. In this work, the catalyst was obtained by the thermolysis of a double complex compound. In this regard, kinetic studies of the parameters of the thermolysis process of double complex salts-[Co(NH)3]6][Fe(CN)6] were additionally determined using isoconversion and model approaches of non-isothermal kinetics. The catalyst was studied using various physicochemical methods—X-ray diffraction (XRD), infrared (IR)-spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). It was shown that, at the stage of catalyst preparation, the formation of a CoFe alloy occurred, while the surface mainly consisted of carbon in sp2-hybridization, and the metals existed in the form of spinel CoFe2O4. It was shown that catalysts based on bimetallic salts were active in the process of hydrogenation of carbon dioxide without a pre-activation stage (CO2 conversion reached 28%, with a specific activity of 4.0 µmolCO2/gMe·s). It was established that it was possible to change the selectivity of the carbon dioxide hydrogenation process by pre-treating the catalyst with hydrogen (selectivity for methane formation in the presence of an unreduced catalyst is 46.4–68.0%, whereas in the presence of a reduced catalyst it is 5.1–16.5%).

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Schiff-base polymer derived ultralong FeCo/N-doped carbon nanotubes as bifunctional oxygen electrocatalyst for liquid and flexible all-solid-state rechargeable zinc–air batteries

Cited by 14 publications

References 74 publications

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

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

FeCo alloy nanoparticles encapsulated in hollow N-doped carbon as a bifunctional electrocatalyst for aqueous zinc–air batteries with a low voltage gap

CO2 Hydrogenation over Fe-Co Bimetallic Catalyst Derived from the Thermolysis of [Co(NH3)6][Fe(CN)6]

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