Induced Ferromagnetic Order of Graphdiyne Semiconductors by Introducing a Heteroatom

Zhang, Mingjia; Wang, Xiaoxiong; Sun, Hongwen; Wang, Naiyin; Wang, Ning; Long, Yun; Li, Yuliang

doi:10.1021/acscentsci.0c00348

Cited by 45 publications

(34 citation statements)

References 58 publications

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“…Meanwhile, the two peaks at 1927 and 2178 cm −1 are in good agreement with the vibration of diacetylene chain in GDY of Ag/GDY/CC composites. [ 37,38,40,41 ] In addition, the intensities of the characteristic peaks for Ag/GDY/CC in Figure 2b are much higher than those for pure GDY in Figure 2c, which confirms that the anchoring of silver nanoparticles onto GDY has a surface‐enhanced Raman scattering (SERS) effect on GDY. [ 17 ] Therefore, the analysis of Raman spectroscopy moreover proves the successful deposition of silver nanoparticles onto the GDY support and the intimate contact between silver nanoparticles and GDY.…”

Section: Resultsmentioning

confidence: 75%

“…As a new type of functional carbon material, since it was first synthesized by Li et al, [ 36–39 ] Graphdiyne (GDY) has been successfully applied in numerous research areas, such as HER, [ 40–42 ] oxygen evolution reaction (OER), [ 43–45 ] nitrogen reduction, [ 46 ] supercapacitors, [ 47 ] lithium‐ and sodium‐ion batteries, [ 48–51 ] CO 2 reduction, [ 52–54 ] and so on. [ 55 ] With the unique high π ‐conjugated construction, GDY possesses very high electronic conductivity (2.56 × 10 −1 S m −1 ), excellent charge carrier mobility (2 × 10 5 cm 2 V −1 s −1 ), and furthermore, superior stability under acid or alkali conditions at up to 150 °C.…”

Section: Introductionmentioning

confidence: 99%

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Graphdiyne‐Stabilized Silver Nanoparticles as an Efficient Electrocatalyst for CO₂ Reduction

Xie

Zhang

et al. 2021

Adv Energy and Sustain Res

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Electrochemical CO2 reduction reaction (e‐CO2RR) into high‐value chemicals is a promising approach for sustainable energy research, but there remains a great challenge to develop efficient and stable catalysts. Herein, in situ synthesized uniform Ag nanoparticles (AgNPs) directly growing on the surface of 2D graphdiyne (GDY) for selectively reducing CO2 to CO with high efficiency and stability are reported. Due to the special electronic distribution of GDY, it not only serves as a template for the growth of AgNPs to prevent its aggregation, but also increases active sites and transformation of electrons through the intimate interaction between phase interface to enhance their cooperative catalytic effect, which highly improves the electrocatalytic performance of the nanocomposite. Through investigations, it is found that the Ag/GDY/CC nanocomposite electrochemically reduces CO2 to CO with Faraday efficiency up to 92.1% and current density of 25.74 mA/cm2 at the potential of −1.3 V versus reversible hydrogen electrode (RHE). Meanwhile, during catalysis, the Ag/GDY/CC composite maintains excellent stability with a high current density of ≈26 mA/cm2 (threefold higher than that of Ag/CC), unchanged for over 24 h. To the best knowledge, herein, the first experimental study of an efficient CO2 reduction electrocatalyst based on GDY is represented.

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Section: Resultsmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Graphdiyne‐Stabilized Silver Nanoparticles as an Efficient Electrocatalyst for CO₂ Reduction

Xie

Zhang

et al. 2021

Adv Energy and Sustain Res

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“…Meanwhile, the strong single peak appears at 1720 cm −1 , which is attributed to the diacetylene bond, proving that the synthesized Si‐DY is a well‐defined 3D structured material rich in diacetylene bonds. Presence of diacetylene bonds with a peak appears around 2130 cm −1 , which can be assigned to the typical acetylenic bond (CC) stretching vibration, [ 25,26 ] is further proved via Fourier transform infrared (FT‐IR) spectrum in Figure S15, Supporting Information. A peak appears at 450 cm −1 can be well ascribed to the Si–C single bonds, suggesting large amount of Si atoms in Si‐DY.…”

Section: Resultsmentioning

confidence: 99%

Porous 3D Silicon‐Diamondyne Blooms Excellent Storage and Diffusion Properties for Li, Na, and K Ions

Yang

Song

Zhang

et al. 2021

Advanced Energy Materials

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Regarding different kinds of alkali metal ion batteries such as lithium‐ion battery (LIB), sodium‐ion battery (NIB), and potassium‐ion battery (KIB), since the diameters and properties of these ions are different, there are few materials that are adaptable simultaneously as the anode for these batteries. To achieve the versatile compatibility material, its chemical component and spatial configuration need to be predesigned for possessing abundant storage sites and efficient diffusion paths. Here, a well‐designed 3D material silicon‐diamondyne (Si‐DY) is prepared which is only comprised of butadiyne units and sp3‐hybridized silicon atoms. Owing to the combination of the abundant diyne and various inner channels in the stable diamond‐like skeleton, Si‐DY exhibits excellent storage and diffusion properties for alkali metal ions. The Si‐DY is predicted with an ultrahigh theoretical capacity of 3674, 2810, and 1945 mAh g−1 for lithium, sodium, and potassium ions, respectively. Especially, as the anode of LIB, NIB, and KIB, Si‐DY achieves very high stable practical specific capacities of 2350, 812, and 512 mAh g−1, respectively, as well as an ultra‐long cycling stability. Those outstanding results demonstrate that the as‐designed Si‐DY displays an exceptional potential as the versatile material for energy applications.

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“…In addition, it was suggested that dislocation and grain boundary in 2D transition‐metal dichalcogenides MX 2 can drive the transition from nonmagnetic to ferromagnetic states 63 . Ferromagnetic ordering and enhanced carrier transport were theoretically predicted and experimentally achieved in the graphdiyne semiconductors by H, F, and Cl substitution, and a flexible prototype device was fabricated with a negative magnetoresistance effect 64 . Very recently, randomly localized magnetic moments induced by Pt vacancies in type‐II Dirac semimetal PtSe 2 nanoflakes were reported from theory and experiment, giving rise to the Kondo effects 65–67 …”

Section: Two‐dimensional Magnetismmentioning

confidence: 99%

Computational design of two‐dimensional magnetic materials

Miao

Sun

2021

WIREs Comput Mol Sci

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As a long‐standing research topic in materials physics and chemistry, magnetic materials have been receiving increasing attention for their applications in spintronic devices, such as spin field‐effect transistor and data‐storage memory. Two‐dimensional (2D) magnets are a family of emerging magnetic materials with atomically thin thickness, which can be easily integrated into heterostructural devices, providing incredible possibility for understanding 2D magnetism and great potential for applications in future ultrathin spintronic devices. Recent effort from theory, simulations and experiments has made notable progress on 2D magnets and devices, especially on 2D van der Waals materials and heterojunctions. Here theoretical advances using physical models and computational approaches on the study of new 2D magnets and devices are briefly summarized and possible directions for future investigation are extensively discussed, which may inspire growing interest on the development and applications of 2D magnets and spintronic devices. This article is categorized under: Structure and Mechanism > Computational Materials Science Electronic Structure Theory > Density Functional Theory

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Induced Ferromagnetic Order of Graphdiyne Semiconductors by Introducing a Heteroatom

Cited by 45 publications

References 58 publications

Graphdiyne‐Stabilized Silver Nanoparticles as an Efficient Electrocatalyst for CO₂ Reduction

Graphdiyne‐Stabilized Silver Nanoparticles as an Efficient Electrocatalyst for CO₂ Reduction

Porous 3D Silicon‐Diamondyne Blooms Excellent Storage and Diffusion Properties for Li, Na, and K Ions

Computational design of two‐dimensional magnetic materials

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Induced Ferromagnetic Order of Graphdiyne Semiconductors by Introducing a Heteroatom

Cited by 45 publications

References 58 publications

Graphdiyne‐Stabilized Silver Nanoparticles as an Efficient Electrocatalyst for CO2 Reduction

Graphdiyne‐Stabilized Silver Nanoparticles as an Efficient Electrocatalyst for CO2 Reduction

Porous 3D Silicon‐Diamondyne Blooms Excellent Storage and Diffusion Properties for Li, Na, and K Ions

Computational design of two‐dimensional magnetic materials

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Product

Resources

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Graphdiyne‐Stabilized Silver Nanoparticles as an Efficient Electrocatalyst for CO₂ Reduction

Graphdiyne‐Stabilized Silver Nanoparticles as an Efficient Electrocatalyst for CO₂ Reduction