New design for Polyaniline@Multiwalled carbon nanotubes composites with bacteria doping for supercapacitor electrodes

Lee, Kwang Se; Park, Chan Woo; Phiri, Isheunesu; Ko, Jang Myoun

doi:10.1016/j.polymer.2020.123014

Cited by 20 publications

(7 citation statements)

References 35 publications

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“…The manipulation of charge distribution and spin density via nitrogen (N) incorporation improves the method in enhancing the catalytic performance of biochar that is initially unreactive [134]. Various external methods for nitrogen doping have been reported, involving different nitrogen sources such as urea [135], melamine [136], dicyandiamide [137], thiourea [138], ethylenediamine [139], polyacrylamide [140], and nitrogen-containing compounds like ammonium nitrate [141], ammonium chloride [142], and ammonium phosphate [143]. Xu et al [136] conducted an experiment to fabricate biochar with nitrogen doping through a one-step calcination process by utilizing various nitrogen sources.…”

Section: Nitrogen Dopingmentioning

confidence: 99%

Degradation of Water Pollutants by Biochar Combined with Advanced Oxidation: A Systematic Review

Kong,

Liu,

Xiang

et al. 2024

Water

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Recently, biochar has emerged as a promising option for environmentally friendly remediation due to its cost-effectiveness, extensive surface area, porosity, and exceptional electrical conductivity. Biochar-based advanced oxidation procedures (BC-AOPs) have gained popularity as an effective approach to breaking down organic pollutants in aqueous environments. It is commonly recognized that the main reactive locations within BC-AOPs consist of functional groups found on biochar, which encompass oxygen-containing groups (OCGs), imperfections, and persistent free radicals (PFRs). Additionally, the existence of metallic components supported on biochar and foreign atoms doped into it profoundly impacts the catalytic mechanism. These components not only modify the fundamental qualities of biochar but also serve as reactive sites. Consequently, this paper offers a comprehensive review of the raw materials, preparation techniques, modification approaches, and composite catalyst preparation within the biochar catalytic system. Special attention is given to explaining the modifications in biochar properties and their impacts on catalytic activity. This paper highlights degradation mechanisms, specifically pathways that include radical and non-radical processes. Additionally, it thoroughly examines the importance of active sites as catalysts and the basic catalytic mechanism of BC-AOPs. Finally, the potential and future directions of environmental remediation using biochar catalysts and advanced oxidation processes (AOPs) are discussed. Moreover, suggestions for future advancements in BC-AOPs are provided to facilitate further development.

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Section: Nitrogen Dopingmentioning

confidence: 99%

Degradation of Water Pollutants by Biochar Combined with Advanced Oxidation: A Systematic Review

Kong,

Liu,

Xiang

et al. 2024

Water

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“…Owing to the unique features of conductive polymers, they have gained attention in energy storage devices [11,12]. Polymers are usually synthesized by polymerization of their monomers by different methods [13].…”

Section: Introductionmentioning

confidence: 99%

Boosting the Electrochemical Performance of Polyaniline by One-Step Electrochemical Deposition on Nickel Foam for High-Performance Asymmetric Supercapacitor

et al. 2022

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Energy generation can be clean and sustainable if it is dependent on renewable resources and it can be prominently utilized if stored efficiently. Recently, biomass-derived carbon and polymers have been focused on developing less hazardous eco-friendly electrodes for energy storage devices. We have focused on boosting the supercapacitor’s energy storage ability by engineering efficient electrodes in this context. The well-known conductive polymer, polyaniline (PANI), deposited on nickel foam (NF) is used as a positive electrode, while the activated carbon derived from jute sticks (JAC) deposited on NF is used as a negative electrode. The asymmetric supercapacitor (ASC) is fabricated for the electrochemical studies and found that the device has exhibited an energy density of 24 µWh/cm2 at a power density of 3571 µW/cm2. Furthermore, the ASC PANI/NF//KOH//JAC/NF has exhibited good stability with ~86% capacitance retention even after 1000 cycles. Thus, the enhanced electrochemical performances of ASC are congregated by depositing PANI on NF that boosts the electrode’s conductivity. Such deposition patterns are assured by faster ions diffusion, higher surface area, and ample electroactive sites for better electrolyte interaction. Besides advancing technology, such work also encourages sustainability.

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“…Typical examples of biomass sources demonstrating supercapacitor applications are rice‐straw‐derived porous carbons 33 ; activated carbons from Eichhornia crassipes 34 ; pinecone‐biomass‐derived carbons 35 ; N‐doped porous carbons from potato waste 36 ; N‐doped carbons from microorganism 37 ; N, S dual‐doped, hierarchically porous carbons from ginger 38 ; N, S binary‐doped bamboo fiber‐based carbons 39 ; and ternary doped microporous carbons 40 . However, these investigations require multiple and complex synthetic procedures with unusual biomasses, expensive heteroatom dopants, and inefficient supercapacitor performance, particularly prolonged charge‐discharge process, and substandard cycle stability.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, researchers/ scientists have been shifting their research focus on finding green and renewable carbon precursors, for example, biomass/biowaste due to their inexhaustible abundance, green resource, low synthetic cost, environmental friendliness, and valorization into valuable materials, that is, building waste-to-wealth based future circular economy. 32 Typical examples of biomass sources demonstrating supercapacitor applications are rice-straw-derived porous carbons 33 ; activated carbons from Eichhornia crassipes 34 ; pinecone-biomass-derived carbons 35 ; N-doped porous carbons from potato waste 36 ; N-doped carbons from microorganism 37 ; N, S dual-doped, hierarchically porous carbons from ginger 38 ; N, S binary-doped bamboo fiberbased carbons 39 ; and ternary doped microporous carbons. 40 However, these investigations require multiple and complex synthetic procedures with unusual biomasses, expensive heteroatom dopants, and inefficient supercapacitor performance, particularly prolonged charge-discharge process, and substandard cycle stability.…”

Section: Introductionmentioning

confidence: 99%

Supercapacitor performance based on nitrogen and sulfur co‐doped hierarchically porous carbons: Superior rate capability and cycle stability

Nazir

Rehman

Hussain

et al. 2022

Intl J of Energy Research

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Summary Herein, the banana‐peel waste was carbonized followed by KOH activation to design novel N, S‐co‐doped hierarchically porous carbonaceous materials (NS‐AC). The synthesized sample (NS‐AC) exhibited an interconnected porosity and endowed with a high specific surface area (SSA ~ 2452 m2 g−1), total pore volume (Vtotal ~ 1.82 cm3 g−1), and moderate nitrogen (3.2 at%) and sulfur (0.6 at%) contents. Moreover, these carbons, when scrutinized as electrode materials, demonstrated a specific capacitance (220 F g−1 at 0.5 A g−1), which persists at 145 F g−1 even at a large current density of 6 A g−1, thereby demonstrating an efficient rate capability. Furthermore, a capacitance retention of ~78.2% over 15 000 cycles was also observed. All these characteristics reveal NS‐AC carbons a promising contender for energy storage. Finally, as‐prepared symmetric supercapacitor (NS‐AC/NS‐AC) exhibited remarkable energy density ~5.3 Wh kg−1 at a power density of 2690 W kg−1 with capacitance retention of 88% over 4000 charge/discharge cycles, which surpasses the working performance of the many reported carbon materials obtained from biomass sources. In conclusion, outstanding textural features and enhanced conductivity by KOH activation, in addition to the improved surface wettability posed by N‐ and S‐enriched surfaces, resulted in considerable supercapacitor performance. Highlights Banana peels‐derived biochar‐based porous carbons Porous carbons exhibit large specific surface area (>2452 m2 g−1). Binary heteroatom‐doped carbons possess at% of N (3.2) and S (0.6). Synergetic effect of N and S doping and high porosity leads to high supercapacitance.

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New design for Polyaniline@Multiwalled carbon nanotubes composites with bacteria doping for supercapacitor electrodes

Cited by 20 publications

References 35 publications

Degradation of Water Pollutants by Biochar Combined with Advanced Oxidation: A Systematic Review

Degradation of Water Pollutants by Biochar Combined with Advanced Oxidation: A Systematic Review

Boosting the Electrochemical Performance of Polyaniline by One-Step Electrochemical Deposition on Nickel Foam for High-Performance Asymmetric Supercapacitor

Supercapacitor performance based on nitrogen and sulfur co‐doped hierarchically porous carbons: Superior rate capability and cycle stability

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