Nitrogen-doped hierarchical porous carbon using biomass-derived activated carbon/carbonized polyaniline composites for supercapacitor electrodes

Du, Wei; Wang, Xiaoning; Sun, Xueqin; Zhan, Jie; Zhang, Huadong; Zhao, Xiangjin

doi:10.1016/j.jelechem.2018.09.031

Cited by 105 publications

(27 citation statements)

References 39 publications

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“…Next, g-C 3 N 4 were decomposition when the temperature is about 600 °C and reaction system has no residual g-C 3 N 4 after it completely decomposed at 800 °C. These results were well in agreement with textural characteristics showed in Table 1 , which surface area raised after modification, due to the activation and release of volatile compounds during carbonization process [ 12 , 28 ]. Moreover, the Transmission Electron Microscope (TEM) were test to verify the nanolattice structure.…”

Section: Resultssupporting

confidence: 89%

“…The high price and low utilization still cannot implement recycle and reuse [ 7 ]. On the other hand, the cheap biomass, such as chicken eggshell, prawn shells, soybeans, human hair, garlic skin and ant powder [ 12 , 13 , 14 , 15 ], have also been extensively investigated as raw materials for carbon materials. But it was constrained by its low adsorption efficiency and complicated synthesis process.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of N-Doped Carbon Nanosheets from Sewage Sludge for Adsorption Studies of Cr(VI) from Aqueous Solution

et al. 2019

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Porous activated carbon with specific morphology and structure are of particular importance for waste water treatment, especially for the adsorption of toxic hexavalent chromium Cr(VI). However, the scalable and cheap production of such absorbents still suffer a grand challenge. Herein, a new type of N-doped nanosheet was innovatively prepared from easily available and low-cost sewage sludge via a facile and recyclable KOH activation method. The N-doped porous carbon nanosheets (N-SAC) produced by introduction of KOH and dicyandiamide, which performed favourable features for metal ions adsorption (93.2% for Cr(VI)) due to its high specific surface area, tuneable pore size distributions and good hydrophilicity. Additionally, the capacity also remained high after two cycles of adsorption by thermal regeneration, with 90.8% removal rate. The DFT calculation also approved that the doping of N could optimize the Mulliken charges distribution and improve the HOMO energy and improve the adsorption ability of N-SAC. This original proposal may inspire new possibility of creating porous carbon absorbents in a recyclable method.

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Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Preparation of N-Doped Carbon Nanosheets from Sewage Sludge for Adsorption Studies of Cr(VI) from Aqueous Solution

et al. 2019

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“…However, conducting polymers have poor rate performance and inferior cycling stability ascribed to the limited ions diffusion, volume shrinkage, and expansion during the charge/discharge cycling. Among conducting polymers, PANI is commonly used as additive in BDCs from various biomass, including seaweed, 258 kenaf, 259 wheat flour, 260 enteromorpha prolifera, 261 celery, 262 willow catkin, 263 and watermelon rind 264 . For example, BDC from dandelion fluff/polyaniline composite (ACTBs/PANI) is obtained by two‐step process consisting of first transforming hollow tubular dandelion fluff into BDC through carbonization and KOH activation, followed by coating of ACTBs with PANI by in‐situ chemical polymerization (Figure 16A).…”

Section: Influencing Factors Of Bdcs In Ecsmentioning

confidence: 99%

Renewable biomass‐derived carbons for electrochemical capacitor applications

Luo

Chen

et al. 2021

SusMat

123

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Biomass is rich, renewable, sustainable, and green resources, thereby excellent raw material for the fabrication of carbon materials. The diversity in structure and morphology of biomass are relevant in obtaining carbon materials with different structures and performances. The inherent ordered porous structure of biomass also benefits the activation process to yield porous carbons with ultrahigh specific surface area and pore volume. Besides, obtained biomass‐derived carbons (BDCs) are hard carbon with porous morphology, stable structure, superior hardness/strength, and good cycling performances when used in electrochemical capacitors (ECs). The inherent N, S, P, and O elements in biomass yield naturally self‐doped N, S, P, and O BDCs with unique intrinsic structures. In this paper, the synthesis approaches and applications of BDCs in ECs are reviewed. It shows that BDCs electrochemical performances are highly determined by their pore structures, specific surface areas, heteroatoms doping, graphitization degree, defects, and morphologies. The electrochemical performances of BDCs can further be improved by compositing with other materials, such as graphene, carbon nanofibers/nanotubes, transition metal oxides or hydroxides, and conducting polymers. The future challenges and outlooks of BDCs are also provided.

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“…Furthermore, the current response of the CMK-PANi composite was more significant than the CMK-3 and PANi, implying that it has the highest specific capacitance value due to pseudo capacitance and the electric double layer capacitor. Further, redox peaks in the CV curves for the CMK-PANi composite was attributed to the redox transition of PANi between a semiconducting state (leucoemeraldine form) and a conducting state (polaronic emeraldine) [37], that results in the redox capacitance. Figure 8 shows cyclic voltammogram of CMK-PANi modified electrodes in 1 M KHCO 3 at different scan rates 1 to 100 mV/s in the potential range of − 0.3 to 0.6 V. The CMK-PANi material reveals the leaf-like CV curves at different scan rates, and increasing potential with scan rates from 1 to 100 mV/s the current also increases from 0.2 to 2 mA indicates a good rate ability for CMK-PANi [38].…”

Section: Electrochemical Propertiesmentioning

confidence: 98%

Synthesis of mesoporous carbon-polymeric hybrid material for energy storage application

et al. 2019

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The overarching goal of this study is fabrication and evaluation of mesoporous carbon-polymeric hybrid electrode materials derived by in situ polymerization of aniline on mesoporous carbon. The mesoporous carbon (CMK-3) was prepared using mesoporous silica SBA-15 as a hard template. The characteristics and functional groups of synthesized mesoporous carbon-polyaniline composite confirmed by Fourier-transform infrared spectroscopy, Raman spectroscopy, Thermo gravimetric analysis, X-ray powder diffraction, and BET surface area analysis. The electrochemical performance of carbon-polyaniline composite was evaluated through its supercapacitor behavior in the electrolyte Potassium bicarbonate (KHCO 3 ). Synthesized carbon-polyaniline was used as the working electrode after modification with Nafion solution on glassy carbon electrode. The hybrid material reveals high current density with increased storage efficiency due to uniform confinement of polyaniline into the pore structure of CMK-3. The high specific capacitance of 487 F/g was observed on carbon-polyaniline electrode at 0.2 A/g in KHCO 3 , and also reveals better stability, retained 90% efficiency after 1000 charge-discharge cycles. Thus, the prepared carbon-polyaniline composite exhibit as a good candidate in supercapacitor application.

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Nitrogen-doped hierarchical porous carbon using biomass-derived activated carbon/carbonized polyaniline composites for supercapacitor electrodes

Cited by 105 publications

References 39 publications

Preparation of N-Doped Carbon Nanosheets from Sewage Sludge for Adsorption Studies of Cr(VI) from Aqueous Solution

Preparation of N-Doped Carbon Nanosheets from Sewage Sludge for Adsorption Studies of Cr(VI) from Aqueous Solution

Renewable biomass‐derived carbons for electrochemical capacitor applications

Synthesis of mesoporous carbon-polymeric hybrid material for energy storage application

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