Iron oxide loaded biochar/polyaniline nanocomposite: Synthesis, characterization and electrochemical analysis

Thomas, Diana; Fernandez, Noeline B.; Mullassery, Manohar D.; Surya, R.

doi:10.1016/j.inoche.2020.108097

Cited by 22 publications

(6 citation statements)

References 125 publications

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“…It is evident that, for 3 mmol aniline, the conductivity increased with increase in the weight of ZnO-BC from 0.2 to 1.0 g. This may be ascribed to the conductive network offered by the dopant in composite material. Likewise, the 4 and 5mmols aniline showed an initial hike [25]. After that, conductivity went down as the weight of ZnO-BC increased from 0.8 to 1.0g.…”

Section: Electrical Conductivity Studiesmentioning

confidence: 92%

Biochar-ZnO /Polyaniline Composite in Energy Storage Application: Synthesis, Characterization and Electrochemical Analysis

Thomas

Fernandez

Mullassery

et al. 2023

Preprint

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Carbon materials displaying electrical double capacitance are widely used in the electrochemical energy storage devices. To enhance the electrochemical performance, compositing carbon with transition metal oxides and conducting polymers have been very much appreciated. A novel and effective approach to prepare a high energy density and high specific capacitance composite electrode material from a biomass is presented in the work. Pyrolysis of biomass at 500 oC in the nitrogen atmosphere yielded a biochar (BC) with well-developed porosity, surface functionality and suitable morphological characteristics. Anchoring ZnO nanoparticles on BC and subsequently coating it with a conducting polymeric material, polyaniline (PANI) obtained the hierarchical BC-ZnO/PANI composite. Both BC-ZnO and BC-ZnO/PANI composites have been characterized by FTIR, UV-Visible, XRD, SEM and TEM studies. The characteristic signals at 2θ values 18.5ᵒ, 28.4ᵒ,24.0ᵒ and 31.4ᵒ in XRD correspond to wurtzite structure of ZnO nanoparticles. ZnO rod like structural morphology was confirmed by SEM analysis. The maximum specific capacitance was found to be 110.0 F/g for BC-ZnO and 198.0 F/g for BC-ZnO/PANI. Furthermore, the ternary composite displayed low solution resistance and charge transfer resistance as evident from the Nyquist plots proved that PANI coating is a promising methodology in the fabrication of electrode materials for energy storage applications.

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Section: Electrical Conductivity Studiesmentioning

confidence: 92%

Biochar-ZnO /Polyaniline Composite in Energy Storage Application: Synthesis, Characterization and Electrochemical Analysis

Thomas

Fernandez

Mullassery

et al. 2023

Preprint

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“…PANI was prepared by in situ polymerization to yield a supercapacitor composite material that has a specific capacitance Cs = 315.7 Fg −1 , higher than that of the magnetic biochar without any PANI (Cs = 234.8 Fg −1 ). 83 Tobacco biochar was fabricated, treated with phosphoric acid and mixed with PANI, then Ag3PO4 was synthesized in situ. The final Biochar/PANI/Ag3PO4 was employed as photocatalyst to degrade triclosan.…”

Section: Surface-modified Biochar With Nitrogen-based Compoundsmentioning

confidence: 99%

Surface Treatment of Biochar: Methods, Surface Analysis and Potential Applications. A Comprehensive Review

Gęca¹,

Khalil²,

Bhakta³

et al. 2023

Preprint

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In the recent years, biochar has emerged as a remarkable biosourced material for addressing global environmental, agricultural, biomedical, and energy challenges. However, the performances of biochar rest in part on finely tuning its surface chemical properties, intended to obtain specific functionalities. In this review, we tackle surface treatment of biochar with silane and other coupling agents such as diazonium salts, titatantes, ionic/non-ionic surfactants, as well as nitrogen-containing (macro)molecules. We summarize the recent progress achieved mostly in the last five years, and correlate the nature and extent of functionalization to eye catchy end applications of the surface engineered biochar.

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“…Similar biochar surface areas have been reported in the literature. 48,49 These findings suggest that the higher surface area of the biochar/FeS 2 /WO 3 composite material provides extra space for rapid electron transport and high ion diffusion, improving electrochemical performance. Additionally, the enhancement of the BET surface area of the biochar upon incorporating the FeS 2 /WO 3 nanoparticles indicates the successful intercalation of WO 3 within the binary matrix with the potential provision of a direct pathway for electron conduction.…”

Section: Brunauer-emmett-teller Analysis Studiesmentioning

confidence: 99%

FeS₂ and WO₃ nanoparticles decorated on biochar as a high throughput electrode for supercapacitors

Waris,

Abdulaziz,

Latif

et al. 2023

Phys. Chem. Chem. Phys.

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Iron oxide loaded biochar/polyaniline nanocomposite: Synthesis, characterization and electrochemical analysis

Cited by 22 publications

References 125 publications

Biochar-ZnO /Polyaniline Composite in Energy Storage Application: Synthesis, Characterization and Electrochemical Analysis

Biochar-ZnO /Polyaniline Composite in Energy Storage Application: Synthesis, Characterization and Electrochemical Analysis

Surface Treatment of Biochar: Methods, Surface Analysis and Potential Applications. A Comprehensive Review

FeS₂ and WO₃ nanoparticles decorated on biochar as a high throughput electrode for supercapacitors

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Iron oxide loaded biochar/polyaniline nanocomposite: Synthesis, characterization and electrochemical analysis

Cited by 22 publications

References 125 publications

Biochar-ZnO /Polyaniline Composite in Energy Storage Application: Synthesis, Characterization and Electrochemical Analysis

Biochar-ZnO /Polyaniline Composite in Energy Storage Application: Synthesis, Characterization and Electrochemical Analysis

Surface Treatment of Biochar: Methods, Surface Analysis and Potential Applications. A Comprehensive Review

FeS2 and WO3 nanoparticles decorated on biochar as a high throughput electrode for supercapacitors

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Product

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FeS₂ and WO₃ nanoparticles decorated on biochar as a high throughput electrode for supercapacitors