Control over Tuning Fullerene Microcrystals by Means of Engineering Charge-Transfer Interactions

Wang, Bingzhe; Qu, Yongtao; Piao, Guangzhe; Guldi, Dirk M.

doi:10.1021/acsami.9b02090

Cited by 5 publications

(5 citation statements)

References 30 publications

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“…For example, the activation/deactivation of charge‐transfer interactions between Y@C 82 /NiP is dominated by solvents used for the co‐crystallization due to the solvent‐dependent crystallographic packing in the co‐crystals. [ 25 ] Similar observations have also been demonstrated in C 60 /NMP FMNAs [ 67 ] and the Sc 3 N@C 80 /ZnTPyP system, [ 124 ] where the incorporation of water or surfactant CTAB modulates charge‐transfer interactions in both the ground and excited states. In addition to these above‐mentioned factors, the wetting of substrates could also affect the formation of well‐aligned C 60 ribbons and the electron mobility of the field‐effect transistor device.…”

Section: Properties Modulation and Emerging Applications Of Fmnassupporting

confidence: 63%

“…For example, solvent combinations of CCl 4 /IPA, benzene/IPA, benzene/TBA, NMP/IPA, or NMP/IPA/H 2 O guide the generation of C 60 -based hexagonal 2D nanosheets, 1D nanowhiskers, mixed 2D polygons, 1D fibers, or microparticles, respectively (Figure 9). [27,67,75] Moreover, varying the alcohol type from ethanol, 1-propanol, to 1-butanol (as poor solvents) leads to the evolution of the morphologies of the final C 60 -based FMNAs from 3D irregular, 2D (e.g., hexagonal plates), to 1D rod-shaped microcrystals. [76] Interestingly, cyclic transformation of the shape of C 60 microcrystals was achieved by changing the solvents, which led to a change of the as-grown rod-shape to hexagonal disc-shape, then to belt-shape, and back to rod-shape.…”

Section: Solvent Engineeringmentioning

confidence: 99%

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Supramolecular Engineering of Crystalline Fullerene Micro‐/Nano‐Architectures

Bao

Guo

et al. 2022

Advanced Materials

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Fullerenes are a molecular form of carbon allotrope and bear certain solubility, which allow the supramolecular assembly of fullerene molecules—also together with other complementary compound classes—via solution‐based wet processes. By well‐programmed organizing these building blocks and precisely modulating over the assembly process, supramolecularly assembled fullerene micro‐/nano‐architectures (FMNAs) are obtained. These FMNAs exhibit remarkably enhanced functions as well as tunable morphologies and dimensions at different size scales, leading to their applications in diverse fields. In this review, both traditional and newly developed assembly strategies are reviewed, with an emphasis on the morphological evolution mechanism of FMNAs. The discussion is then focused on how to precisely regulate the dimensions and morphologies to generate functional FMNAs through solvent engineering, co‐crystallization, surfactant incorporation, or post‐fabrication treatment. In addition to C60‐based FMNAs, this review particularly focuses on recently fabricated FMNAs comprising higher fullerenes (e.g., C70) and metallofullerenes. Meanwhile, an overview of the property modulation is presented and multidisciplinary applications of FMNAs in various fields are summarized, including sensors, optoelectronics, biomedicines, and energy. At the end, the prospects for future research, application opportunities, and challenges associated with FMNAs are proposed.

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Section: Properties Modulation and Emerging Applications Of Fmnassupporting

confidence: 63%

Section: Solvent Engineeringmentioning

confidence: 99%

Supramolecular Engineering of Crystalline Fullerene Micro‐/Nano‐Architectures

Bao

Guo

et al. 2022

Advanced Materials

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“…Fullerenes have also been recognized as good candidates for solid lubricants, due to the unique spherical or ellipsoidal structures, high compressive capacity, weak intermolecular force, and low surface energy . Since the fullerene was first discovered by Kroto et al in 1985 in the process of vaporizing graphite by laser irradiation, the synthesis and property of fullerenes have been widely investigated. − With the excellent performance in superconductivity, magnetism, and optics, fullerenes demonstrate great potential to be applied to solar cells, optical devices, drug delivery, and so forth. − …”

Section: Introductionmentioning

confidence: 99%

Superlubricity of Fullerene Derivatives Induced by Host–Guest Assembly

Tan

Shi

et al. 2020

ACS Appl. Mater. Interfaces

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Fullerenes have been recognized as good candidates for solid lubricants. In this study, the microscale superlubricity of fullerene derivatives was accomplished by the construction of regular host–guest assembly structures. Herein, the host–guest assembly structures of fullerene derivatives were successfully constructed on a highly oriented pyrolytic graphite (HOPG) surface by introducing the macrocycles as the templates and were explicitly revealed by scanning tunneling microscopy (STM). Meanwhile, the nanotribological properties of the host–guest assemblies were measured using atomic force microscopy (AFM), revealing ultralow friction coefficients of 0.003–0.008, which could be attributed to the restriction on removal of fullerene molecules after introducing the templates. The interaction energies were calculated by density functional theory (DFT) method, which indicates the correlation between friction coefficients and interaction strength in the host–guest assemblies. The effort on fullerene-related superlubricity could extend the solid superlubrication systems and provide a novel pathway to explore the friction mechanisms at the molecular level.

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“…The amorphous structure of the heat-treated samples was further confirmed by studying Raman spectra (Figure 2b). The pC 60 crystalline material exhibits several Raman vibration bands (six H g vibrations and two A g vibration bands) [47]. However, molecular rotations of the fullerene molecules are restricted in the self-assembled FE-HS system due to crosslinking of the fullerene and EDA molecules; therefore, most of the Raman bands corresponding to the crystalline fullerene are absent in the spectrum of the FE-HS sample (Figure 2b).…”

Section: Resultsmentioning

confidence: 99%

Nanoporous Hollow Carbon Spheres Derived from Fullerene Assembly as Electrode Materials for High-Performance Supercapacitors

et al. 2023

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The energy storage performances of supercapacitors are expected to be enhanced by the use of nanostructured hierarchically micro/mesoporous hollow carbon materials based on their ultra-high specific surface areas and rapid diffusion of electrolyte ions through the interconnected channels of their mesoporous structures. In this work, we report the electrochemical supercapacitance properties of hollow carbon spheres prepared by high-temperature carbonization of self-assembled fullerene-ethylenediamine hollow spheres (FE-HS). FE-HS, having an average external diameter of 290 nm, an internal diameter of 65 nm, and a wall thickness of 225 nm, were prepared by using the dynamic liquid-liquid interfacial precipitation (DLLIP) method at ambient conditions of temperature and pressure. High temperature carbonization (at 700, 900, and 1100 °C) of the FE-HS yielded nanoporous (micro/mesoporous) hollow carbon spheres with large surface areas (612 to 1616 m2 g−1) and large pore volumes (0.925 to 1.346 cm3 g−1) dependent on the temperature applied. The sample obtained by carbonization of FE-HS at 900 °C (FE-HS_900) displayed optimum surface area and exhibited remarkable electrochemical electrical double-layer capacitance properties in aq. 1 M sulfuric acid due to its well-developed porosity, interconnected pore structure, and large surface area. For a three-electrode cell setup, a specific capacitance of 293 F g−1 at a 1 A g−1 current density, which is approximately 4 times greater than the specific capacitance of the starting material, FE-HS. The symmetric supercapacitor cell was assembled using FE-HS_900 and attained 164 F g−1 at 1 A g−1 with sustained 50% capacitance at 10 A g−1 accompanied by 96% cycle life and 98% coulombic efficiency after 10,000 consecutive charge/discharge cycles. The results demonstrate the excellent potential of these fullerene assemblies in the fabrication of nanoporous carbon materials with the extensive surface areas required for high-performance energy storage supercapacitor applications.

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Control over Tuning Fullerene Microcrystals by Means of Engineering Charge-Transfer Interactions

Cited by 5 publications

References 30 publications

Supramolecular Engineering of Crystalline Fullerene Micro‐/Nano‐Architectures

Supramolecular Engineering of Crystalline Fullerene Micro‐/Nano‐Architectures

Superlubricity of Fullerene Derivatives Induced by Host–Guest Assembly

Nanoporous Hollow Carbon Spheres Derived from Fullerene Assembly as Electrode Materials for High-Performance Supercapacitors

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