Carboneyane: A nodal line topological carbon with sp−sp2 −sp3 chemical bonds

You, Jing-Yang; Ma, Xingyu; Zhang, Zhen; Hao, Kuan-Rong; Yan, Qing‐Bo; Sheng, Xian‐Lei; Su, Gang

doi:10.1016/j.carbon.2019.06.060

Cited by 14 publications

(10 citation statements)

References 36 publications

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“…Even though carbon allotropes can have multiple hybridized bonds in one structure, but contain simultaneously all sp, sp 2 and sp 3 hybridized bonds with intriguing physical and chemical properties are rarely reported [60]. Very recently, You et al [61] proposed a novel carbon allotrope named Carboneyane is a topological nodal line semimetal with sp+sp 2 +sp 3 chemical bonds, which just similar to that of IGYN here. Therefore, we envision the insertion of acetylenic triple bonds into carbon phases maybe can spawn more fascinating materials with distinctive properties [62].…”

Section: Resultsmentioning

confidence: 54%

Three-dimensional graphene networks modified with acetylenic linkages for high-performance optoelectronics and Li-ion battery anode material

Zhong

Zhang

Ding

et al. 2019

Carbon

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Searching for three-dimensional (3D) semiconducting carbon allotropes with proper bandgaps and excellent optoelectronic properties is always the chasing goal for the new emerging all-carbon optoelectronics. On the other side, 3D carbon materials have also been recognized as promising anode materials superior to commercialized graphite in Li-ion batteries (LIBs). Here, using first-principles calculations, we propose two novel 3D carbon allotropes through acetylenic linkages modification of two structurally intimately correlated 3D carbon structurescarbon kagome lattice (CKL) and interpenetrated graphene network (IGN). The modified CKL is a truly direct-gap semiconductor and possibly possesses the strongest optical transition coefficient amongst of all semiconducting carbon allotropes. The suitable bandgap and small effective masses also imply it can be a good electron transport material (ETM) for perovskite solar cells. As for the modified IGN, it is a topological nodalline semimetal and shows greatly enhanced specific capacity as anode materials in LIBs comparing to that of IGN. Our work not only find two new 3D carbon phases with fabulous physical and chemical properties for high-performance optoelectronics and Li-ion anode material, we also offer a fresh view to create various carbon structures with versatile properties.

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Section: Resultsmentioning

confidence: 54%

Three-dimensional graphene networks modified with acetylenic linkages for high-performance optoelectronics and Li-ion battery anode material

Zhong

Zhang

Ding

et al. 2019

Carbon

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“…This is achieved by stacking the graphene layers and connecting the layers with acetylenic linkages (−C ≡ C −). The essential point is that for each layer, the acetylenic linkages [26,27], carboneyane [28], graphyne [29,30], diamond [31][32][33], graphite [33], and graphene [34], are also To evaluate the stability of these 2D and 3D carbon structures, we have calculated their phonon spectra. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The key structural parameters and basic properties of ALBG-C 14 , ALBG-C 22 , and IALG-C 30 are summarized in Table 3. For comparison, several other typical 2D and 3D carbon allotropes, including T-carbon [26,27], carboneyane [28],…”

Section: Resultsmentioning

confidence: 99%

Theoretical design of all-carbon networks with intrinsic magnetism

Gao

Feng

Gong

et al. 2021

Carbon

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To induce intrinsic magnetism in the nominally nonmagnetic carbon materials containing only s and p electrons is an intriguing yet challenging task. Here, based on first-principles electronic structure calculations, we propose a universal approach inspired by Ovchinnikov's rule to guide us the design of a series of imaginative magnetic all-carbon structures. The idea is to combine the differently stacked graphene layers via the acetylenic linkages ( −C ≡ C − ) to obtain a class of two-dimensional (2D) and three-dimensional (3D) carbon networks. With first-principles electronic structure calculations, we confirm the effectiveness of this approach via concrete examples of double-layer ALBG-C 14 , triple-layer ALTG-C 22 , and bulk IALG-C 30 . We show that these materials are antiferromagnetic (AFM) semiconductors with intralayer Nél and interlayer AFM couplings. According to the above idea, our work not only provides a promising design scheme for magnetic all-carbon materials, but also can apply to other -bonding network systems.

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“…Due to the particularity of this structure, nanomaterials have some unique effects, including small size effects, quantum effects, surface and interfacial effects [ 29 ]. Carbon elements constitute an abundance of carbon materials due to their unique hybridization forms of sp, sp 2 and sp 3 [ 30 ]. Carbon nanomaterials can be used as catalyst carriers and they can be classified into three categories based on their structures.…”

Section: Carbon-based Nanomaterialsmentioning

confidence: 99%

Carbon-Based Nanocomposites as Fenton-Like Catalysts in Wastewater Treatment Applications: A Review

Xin

Xiang

et al. 2021

Materials

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Advanced oxidation (e.g., fenton-like reagent oxidation and ozone oxidation) is a highly important technology that uses strong oxidizing free radicals to degrade organic pollutants and mineralize them. The fenton-like reactions have the characteristics of low cost, simple operation, thorough reaction and no secondary pollution. Fenton-like reagents refer to a strong oxidation system composed of transition metal ions (e.g., Fe3+, Mn2+ and Ag+) and oxidants (hydrogen peroxide, potassium persulfate, sodium persulfate, etc). Graphene and carbon nanotube possess a distinctive mechanical strength, flexibility, electrical and thermal conductivity and a very large specific surface area, which can work as an excellent carrier to disperse the catalyst and prevent its agglomeration. Fullerene can synergize with iron-based materials to promote the reaction of hydroxyl groups with organic pollutants and enhance the catalytic effect. Fenton-like catalysts influence the catalytic behavior by inducing electron transfer under strong interactions with the support. Due to the short lifespan of free radicals, the treatment effect is usually enhanced with the assistance of external conditions (ultraviolet and electric fields) to expand the application of fenton-like catalysts in water treatment. There are mainly light-fenton, electro-fenton and photoelectric-fenton methods. Fenton-like catalysts can be prepared by hydrothermal method, impregnation and coordination-precipitation approaches. The structures and properties of the catalysts are characterized by a variety of techniques, such as high-resolution transmission electron microscopy, high-angle annular dark-field scanning transmission electron microscopy and X-ray absorption near-edge structure spectroscopy. In this paper, we review the mechanisms, preparation methods, characterizations and applications status of fenton-like reagents in industrial wastewater treatment, and summarize the recycling of these catalysts and describe prospects for their future research directions.

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Carboneyane: A nodal line topological carbon with sp−sp2 −sp3 chemical bonds

Cited by 14 publications

References 36 publications

Three-dimensional graphene networks modified with acetylenic linkages for high-performance optoelectronics and Li-ion battery anode material

Three-dimensional graphene networks modified with acetylenic linkages for high-performance optoelectronics and Li-ion battery anode material

Theoretical design of all-carbon networks with intrinsic magnetism

Carbon-Based Nanocomposites as Fenton-Like Catalysts in Wastewater Treatment Applications: A Review

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