Synthesis of sp-hybridized nitrogen doped ultrathin graphdiyne and application to the electrochemical detection for 6,7-dihydroxycoumarin

Liang, Yan; Huang, Lifang; Hu, Tingxing; Ai, Yijing; Wang, Bei; Sun, Wei

doi:10.1016/j.talanta.2022.123295

Cited by 17 publications

(12 citation statements)

References 44 publications

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“…For convenience, they were named as N1-GDY, N2-GDY, and N3-GDY monolayers, respectively. It is noted that these three types of N-doped GDY materials can be synthesized experimentally . For the GDY monolayer, single transition metal (M = Cr, Mn, Fe, Co, Ni, Cu, Mo, Ru, W, and Re) atoms were considered to locate on the corner of the acetylenic ring, as shown in Figure , and are named as M 1 /GDY.…”

Section: Resultsmentioning

confidence: 99%

“…It is noted that these three types of N-doped GDY materials can be synthesized experimentally. 64 For the GDY monolayer, single transition metal (M = Cr, Mn, Fe, Co, Ni, Cu, Mo, Ru, W, and Re) atoms were considered to locate on the corner of the acetylenic ring, as shown in Figure 1, and are named as M 1 /GDY. For the case of Nn-GDY monolayers (n = 1−3), there are three possible adsorption sites (Figure 1), at which these selected single atoms may be located.…”

Section: Computational Methods and Modelsmentioning

confidence: 99%

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Theoretical and Comparative Analysis of Graphdiyne and Confined Flexible Nitrogen-Doped Graphdiyne-Supported Single-Atom Catalysts for Electrochemical Nitrogen Reduction

Zhou

et al. 2022

J. Phys. Chem. C

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To develop high-performance and low-cost catalysts for electrochemical nitrogen reduction reaction (eNRR) in producing ammonia, a promising alternative to the Haber–Bosch process continues to be a substantial challenge. Herein, by using density functional theory calculations, single-atom-supported pristine and nitrogen-doped (N-doped) graphdiyne (GDY) monolayer-catalyzed eNRR were investigated to realize high performance via rational design. Candidate catalysts include 10 different transition-metal (M = Cr, Mn, Fe, Co, Ni, Cu, Mo, W, Re, and Ru) single-atom-anchored GDY monolayers (M1/GDY) and three different types of N-doped (sp 2-N and sp-N) GDY monolayers (M1/Nn-GDY, n = 1–3), with 40 single-atom catalysts (SACs). Both Mo1/N3-GDY and W1/N3-GDY were screened out with rather low theoretical onset potentials of merely −0.36 and −0.41 V, respectively. Further investigation of the exemplar Mo1/N3-GDY system shows that it has high selectivity, stability, and activity toward ammonia. The synergy effect between single-atom Mo and the confined flexibility substrate gives rise to self-adjustment of the coordination microenvironment of Mo1/N3-GDY, that is, this doped first coordination sphere sp-N is confined, yet shows steric flexibility, and transfers into sp 2-N without Mo-N bond formation when single-atom Mo is anchored. Therefore, the system regulates adsorption pattern and strength of N2and intermediates, and finally boosts the performance. This work provides a new idea of using a confined flexibility substrate to construct SACs for efficient synthesis of ammonia at ambient conditions.

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Section: Resultsmentioning

confidence: 99%

Section: Computational Methods and Modelsmentioning

confidence: 99%

Theoretical and Comparative Analysis of Graphdiyne and Confined Flexible Nitrogen-Doped Graphdiyne-Supported Single-Atom Catalysts for Electrochemical Nitrogen Reduction

Zhou

et al. 2022

J. Phys. Chem. C

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“…Moreover, La doping can significantly reduce the δE P value of La/NiWO 4 / GCE to 0.102 V, along with much improved peak currents, suggesting improved conductivity and accelerated redox reaction kinetics. 57,58 The introduction of rGO can further narrow the potential gaps between the redox peaks and improve the peak currents. For rGO/La/NiWO 4 /GCE, the δE P value is as low as 0.082 V, demonstrating its excellent mass and charge transfer efficiency.…”

Section: Electrochemical Characterizationmentioning

confidence: 99%

La-doped NiWO₄ coupled with reduced graphene oxide for effective electrochemical determination of diphenylamine

Li,

Zheng,

Yan

et al. 2023

Dalton Trans.

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“…As an emerging carbon material, graphdiyne (GDY) has a large conjugated system, wide interplanar spacing, abundant carbon bonds, excellent chemical stability, and semiconductor properties, and is an all-carbon polymer with a 2D planar network structure. [16,17] Since it was successfully synthesized in 2010, [18] its special structure has attracted many scientists to explore its properties and application fields. Its application fields have been extended to energy, [19] optoelectronics, [20] sensors, [21] etc.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Graphdiyne/Graphene Composite Microsphere with Wrinkled Surface via Ultrasonic Spray Compounding and its Microwave Absorption Properties

Ling

Liu

et al. 2022

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Advanced carbon materials are constantly being used in the field of microwave absorption. Herein, in order to enrich the variety and expand the application fields of graphdiyne (GDY), the wrinkled graphene (RGO) nanosheet coated and embedded with GDY porous microspheres (RGO/GDY) are prepared by GDY synthesis, ultrasonic spray, and pyrolysis. The study finds that RGO and GDY have effective synergistic effects. The suitable pores and composition, conductive network formed by overlapping 0D and 2D materials, special surface and internal morphology design, and high-temperature activation process make RGO/GDY exhibit excellent impedance matching and attenuation capabilities. Under the best amount of GDY (20 mg), the particle sizes of the microspheres (≈6 µm), and filler content (27.5%), the minimum reflection loss (RL min ) is −58

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Synthesis of sp-hybridized nitrogen doped ultrathin graphdiyne and application to the electrochemical detection for 6,7-dihydroxycoumarin

Cited by 17 publications

References 44 publications

Theoretical and Comparative Analysis of Graphdiyne and Confined Flexible Nitrogen-Doped Graphdiyne-Supported Single-Atom Catalysts for Electrochemical Nitrogen Reduction

Theoretical and Comparative Analysis of Graphdiyne and Confined Flexible Nitrogen-Doped Graphdiyne-Supported Single-Atom Catalysts for Electrochemical Nitrogen Reduction

La-doped NiWO₄ coupled with reduced graphene oxide for effective electrochemical determination of diphenylamine

Fabrication of Graphdiyne/Graphene Composite Microsphere with Wrinkled Surface via Ultrasonic Spray Compounding and its Microwave Absorption Properties

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Synthesis of sp-hybridized nitrogen doped ultrathin graphdiyne and application to the electrochemical detection for 6,7-dihydroxycoumarin

Cited by 17 publications

References 44 publications

Theoretical and Comparative Analysis of Graphdiyne and Confined Flexible Nitrogen-Doped Graphdiyne-Supported Single-Atom Catalysts for Electrochemical Nitrogen Reduction

Theoretical and Comparative Analysis of Graphdiyne and Confined Flexible Nitrogen-Doped Graphdiyne-Supported Single-Atom Catalysts for Electrochemical Nitrogen Reduction

La-doped NiWO4 coupled with reduced graphene oxide for effective electrochemical determination of diphenylamine

Fabrication of Graphdiyne/Graphene Composite Microsphere with Wrinkled Surface via Ultrasonic Spray Compounding and its Microwave Absorption Properties

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Product

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La-doped NiWO₄ coupled with reduced graphene oxide for effective electrochemical determination of diphenylamine