In situ fabrication of nitrogen doped porous carbon nanorods derived from metal-organic frameworks and its application as supercapacitor electrodes

Zhu, Weiwei; Zhao, Ruiqing; Yang, Mengya; Liu, Yi; Yan, Dongming

doi:10.1016/j.jssc.2019.05.040

Cited by 24 publications

(7 citation statements)

References 51 publications

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“…Figure 5 h shows that the GCD curves of CWFZ2 exhibit an ideal symmetrical triangle, indicating excellent characteristics of storing charges in the electric double layer. Specifically, the capacitance of CWFZ2 was ~270.74 F g −1 at a current density of 0.5 A g −1 , which is significantly higher than that of the other carbon-based electrode materials previously reported, such as PC-850 (132.8 F g −1 at 0.5 A g −1 ) [ 17 ], GPNC (218 F g −1 at 0.5 A g −1 ) [ 20 ], N-HPC (128.5 F g −1 at 0.2 A g −1 ) [ 45 ], CMCMs (210 F g −1 at 1 A g −1 ) [ 46 ], H-N-N- T (162 F g −1 at 1.25 A g −1 ) [ 47 ], and PC1000@C (225 F g −1 at 0.5 A g −1 ) [ 48 ]. The electrochemical stability of CWFZ2 was evaluated by repeating the GCD at a current density of 2 A g −1 ( Figure 5 i).…”

Section: Resultsmentioning

confidence: 99%

N-Doped Carbon Fibers Derived from Porous Wood Fibers Encapsulated in a Zeolitic Imidazolate Framework as an Electrode Material for Supercapacitors

Zhang

Qing

Wang³

et al. 2023

Molecules

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Developing highly porous and conductive carbon electrodes is crucial for high-performance electrochemical double-layer capacitors. We provide a method for preparing supercapacitor electrode materials using zeolitic imidazolate framework-8 (ZIF-8)-coated wood fibers. The material has high nitrogen (N)-doping content and a specific surface area of 593.52 m2 g−1. When used as a supercapacitor electrode, the composite exhibits a high specific capacitance of 270.74 F g−1, with an excellent capacitance retention rate of 98.4% after 10,000 cycles. The symmetrical supercapacitors (SSCs) with two carbon fiber electrodes (CWFZ2) showed a high power density of 2272.73 W kg−1 (at an energy density of 2.46 W h kg−1) and an energy density of 4.15 Wh kg−1 (at a power density of 113.64 W kg−1). Moreover, the SSCs maintained 81.21% of the initial capacitance after 10,000 cycles at a current density of 10 A g−1, which proves that the SSCs have good cycle stability. The excellent capacitance performance is primarily attributed to the high conductivity and N source provided by the zeolite imidazole framework. Because of this carbon material’s unique structural features and N-doping, our obtained CWFZ2 electrode material could be a candidate for high-performance supercapacitor electrode materials.

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Section: Resultsmentioning

confidence: 99%

N-Doped Carbon Fibers Derived from Porous Wood Fibers Encapsulated in a Zeolitic Imidazolate Framework as an Electrode Material for Supercapacitors

Zhang

Qing

Wang³

et al. 2023

Molecules

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“…S2 and the molecule unit of Zn-BTC in SI Appendix, Fig. S3) (28) would happen in water under ambient conditions rather than the common conditions assisted by organic solvents [e.g., ethanol (29), dimethyl sulfoxide (30), dimethyl formamide (31), oil bath (32), microwave (33), or solvothermal conditions (34)], suggesting a facile and sustainable process. Afterward, heat treatment at 900 °C for 2 h causes the transformation of Zn-BTC@TOCN into the scalable fabrication of carbon aerogels, as shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

High energy density and extremely stable supercapacitors based on carbon aerogels with 100% capacitance retention up to 65,000 cycles

Chen

Zhi

et al. 2021

Proc. Natl. Acad. Sci. U.S.A.

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In terms of ideal future energy storage systems, besides the always-pursued energy/power characteristics, long-term stability is crucial for their practical application. Here, we report a facile and sustainable strategy for the scalable fabrication of carbon aerogels with three-dimensional interconnected nanofiber networks and rationally designed hierarchical porous structures, which are based on the carbonization of bacterial cellulose assisted by the soft template of Zn-1,3,5-benzenetricarboxylic acid. As binder-free electrodes, they deliver a fundamentally enhanced specific capacitance of 352 F ⋅ g–1 at 1 A ⋅ g–1 in a wide potential window (1.2 V, 6 M KOH) in comparison with those of bacterial cellulose–derived carbons (178 F ⋅ g–1) and most activated carbons (usually lower than 250 F ⋅ g–1). The as-assembled supercapacitors exhibit an ultrahigh capacitance of 297 F ⋅ g−1 at 1 A ⋅ g−1, remarkable energy density (14.83 Wh ⋅ kg−1 at 0.60 kW ⋅ kg−1), and extremely high stability, with 100% capacitance retention for up to 65,000 cycles at 6 A ⋅ g−1, representing their superior energy storage performance when compared with that of state-of-the-art supercapacitors of commercial activated carbons and biomass-derived analogs.

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“…These functional groups are resulted from the aromatization, dehydration, and etherification, etc. The FTIR spectra in Figure 3 indicate that the surface of the obtained nanorods carbonized at 700°C rich in functional groups [23,24] as well. A broadband at 3015-3700 cm -1 can be seen, which can be attributed to the O-H stretching vibrations of the hydroxyl or carboxyl groups.…”

Section: Journal Of Nanotechnology Research 91mentioning

confidence: 99%

Fabrication of the Carbon Nanorods by β-Cyclodextrins with the Diathermic Oil Emulsification Process

Liao¹,

Zhang²,

Qian³

2019

J Nanotechnol Res

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A low-cost and environment-friendly method using β-cyclodextrins (β-CD) and diathermic oil emulsification process is applied to synthesize the carbon nanorods with a high production. The morphological and structural properties of the carbon nanorods are characterized by SEM and Raman. The chemical elemental analysis is discussed by means of FTIR and XPS. The results confirm that the nanomaterials are amorphous carbon with a diameter of approximate 100 nm. The surface of the obtained carbon nanorods are full of -OH, -C-O, -C=O functional groups, which can greatly improve the hydrophilicity and chemical reactivity of the carbon nanorods.

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In situ fabrication of nitrogen doped porous carbon nanorods derived from metal-organic frameworks and its application as supercapacitor electrodes

Cited by 24 publications

References 51 publications

N-Doped Carbon Fibers Derived from Porous Wood Fibers Encapsulated in a Zeolitic Imidazolate Framework as an Electrode Material for Supercapacitors

N-Doped Carbon Fibers Derived from Porous Wood Fibers Encapsulated in a Zeolitic Imidazolate Framework as an Electrode Material for Supercapacitors

High energy density and extremely stable supercapacitors based on carbon aerogels with 100% capacitance retention up to 65,000 cycles

Fabrication of the Carbon Nanorods by β-Cyclodextrins with the Diathermic Oil Emulsification Process

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