Coal tar pitch derived N-doped porous carbon nanosheets by the in-situ formed g-C3N4 as a template for supercapacitor electrodes

Wang, Donghua; Wang, Yanzhong; Chen, You; Liu, Wei; Wang, Huiqi; Zhao, Pei‐Hua; Liu, Ying; Zhang, Jinfang; Dong, Yingge; Hu, Shengliang; Yang, Jinlong

doi:10.1016/j.electacta.2018.06.151

Cited by 98 publications

(32 citation statements)

References 53 publications

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“…The Ni1.5Co1.5S4/g-C3N4//AC supercapacitor delivers high energy density of 49.0 Wh kg −1 at a power density of 799.0 W kg −1 . These values surpass those of previously reported symmetric and asymmetric supercapacitors based on g-C3N4 composites, such as g-C3N4@Ni(OH)2 [24], ZnS/g-C3N4 [42] and porous g-C3N4 [43][44][45].…”

Section: Resultscontrasting

confidence: 73%

Synthesis of Hierarchical Porous Ni1.5Co1.5S4/g-C3N4 Composite for Supercapacitor with Excellent Cycle Stability

Jin

Jiang

et al. 2020

Nanomaterials

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In this work, the hierarchical porous Ni1.5Co1.5S4/g-C3N4 composite was prepared by growing Ni1.5Co1.5S4 nanoparticles on graphitic carbon nitride (g-C3N4) nanosheets via a hydrothermal route. Due to the self-assembly of larger size g-C3N4 nanosheets as a skeleton, the prepared nanocomposite possesses a unique hierarchical porous structure that can provide short ions diffusion and fast electron transport. As a result, the Ni1.5Co1.5S4/g-C3N4 composite exhibits a high specific capacitance of 1827 F g−1 at a current density of 1 A g−1, which is 1.53 times that of pure Ni1.5Co1.5S4 (1191 F g−1). In particular, the Ni1.5Co1.5S4/g-C3N4//activated carbon (AC) asymmetric supercapacitor delivers a high energy density of 49.0 Wh kg−1 at a power density of 799.0 W kg−1. Moreover, the assembled device shows outstanding cycle stability with 95.5% capacitance retention after 8000 cycles at a high current density of 10 A g−1. The attractive performance indicates that the easily synthesized and low-cost Ni1.5Co1.5S4/g-C3N4 composite would be a promising electrode material for supercapacitor application.

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Section: Resultscontrasting

confidence: 73%

Synthesis of Hierarchical Porous Ni1.5Co1.5S4/g-C3N4 Composite for Supercapacitor with Excellent Cycle Stability

Jin

Jiang

et al. 2020

Nanomaterials

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“…27.4 • corresponds to {0 0 2} crystal plane, which is related to the interlayer stacking structure of aromatic systems [34], and the peak at ca. 13.1 • represents interplanar repeating units of g-C 3 N 4 [35]. Diffraction peaks at ca.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical performance of zinc carbodiimides based porous nanocomposites as supercapacitors

Shen

Chen

Wang

et al. 2021

Applied Surface Science

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The low energy densities of supercapacitors are generally limited by the used anodes. To develop supercapacitors with high energy densities, metal-organic framework (TRD-ZIF-8) derived honeycomb-like porous zinc carbodiimide (ZnNCN) based nanocomposites (HPZC) surface loaded with graphitized carbon nitride (g-C 3 N 4 ) are synthesized. After their detailed characterization by means of electron microscopy, spectroscopy and electrochemical techniques, the materials are used to prepare asymmetric supercapacitor cells (HPZC-4//AC ASCs) with HPZC-4 and active carbon as electrodes, which demonstrate power and energy densities as high as 7839 W Kg − 1 and 213 Wh Kg − 1 , respectively. The unique honeycomb-like porous structure of HPZC loaded with a 2D material (g-C 3 N 4 ) improves charge/mass transport efficiency and reduces ion diffusion resistance, contributing to a specific capacitance of 779 F g − 1 at a current density of 3 A g − 1 . The study thus presents a new way to design transition metal carbodiimide materials and assesses their potential application as electrodes in asymmetric supercapacitors.

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“…The incorporation of g-C 3 N 4 in MOF led to the generation of a porous carbon structure, forbid agglomeration, and collapse of pores during pyrolysis [ 56 , 57 ].…”

Section: Sample Preparation Techniques and Development Of Extraction Sorbentsmentioning

confidence: 99%

Analytical Extraction Methods and Sorbents’ Development for Simultaneous Determination of Organophosphorus Pesticides’ Residues in Food and Water Samples: A Review

Veloo

Ibrahim

2021

Molecules

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Extensive use of organophosphorus pesticides in agriculture leads to adverse effects to the environment and human health. Sample preparation is compulsory to enrich target analytes prior to detection as they often exist at trace levels and this step is critical as it determines the concentration of pollutants present in samples. The selection of a suitable extraction method is of great importance. The analytical performance of the extraction methods is influenced by the selection of sorbents as sorbents play a vital role in the sensitivity and selectivity of an analytical method. To date, numerous sorbent materials have been developed to cater to the needs of selective and sensitive pesticides’ detection. Comprehensive details pertaining to extraction methods, developed sorbents, and analytical performance are provided. This review intended to provide a general overview on different extraction techniques and sorbents that have been developed in the last 10 years for organophosphorus pesticides’ determinations in food and water samples.

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Coal tar pitch derived N-doped porous carbon nanosheets by the in-situ formed g-C3N4 as a template for supercapacitor electrodes

Cited by 98 publications

References 53 publications

Synthesis of Hierarchical Porous Ni1.5Co1.5S4/g-C3N4 Composite for Supercapacitor with Excellent Cycle Stability

Synthesis of Hierarchical Porous Ni1.5Co1.5S4/g-C3N4 Composite for Supercapacitor with Excellent Cycle Stability

Electrochemical performance of zinc carbodiimides based porous nanocomposites as supercapacitors

Analytical Extraction Methods and Sorbents’ Development for Simultaneous Determination of Organophosphorus Pesticides’ Residues in Food and Water Samples: A Review

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