Carbonized Wood for Supercapacitor Electrodes

Teng, Shiang; Siegel, Gene; Wang, Wei; Tiwari, Ashutosh

doi:10.1149/2.005405ssl

Cited by 50 publications

(20 citation statements)

References 28 publications

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“…We can see that, all samples reached relatively stable capacitance at a high current density range of 5 to 20 A g −1 , and more competitively, the N CNF s-1 sample showed a high value of 242 F g −1 at 20 A g −1 , which was quite high among reports for EDLSs [41,42,43]. The relatively large drops of the specific capacitance especially at the low current density range (from 1 A g −1 to 4 A g −1 ) could be understood by the suppressed contributions for small pores to the specific capacitance at increased current density as reported by Teng [44] and Daraghmeh [45]. Surface functional groups (see Figure S1 in the Supporting Information) and the related pseudocapacitance [46], as indicated by the slight tailing in the discharge curves in Figure 6, can also cause attenuations of the specific capacitance.…”

Section: Resultssupporting

confidence: 50%

Linear-Polyethyleneimine-Templated Synthesis of N-Doped Carbon Nanonet Flakes for High-performance Supercapacitor Electrodes

Xia

Quan

et al. 2019

Nanomaterials

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Novel N-doped carbon nanonet flakes (NCNFs), consisting of three-dimensional interconnected carbon nanotube and penetrable mesopore channels were synthesized in the assistance of a hybrid catalytic template of silica-coated-linear polyethyleneimine (PEI). Resorcinol-formaldehyde resin and melamine were used as precursors for carbon and nitrogen, respectively, which were spontaneously formed on the silica-coated-PEI template and then annealed at 700 °C in a N2 atmosphere to be transformed into the hierarchical 3D N-doped carbon nanonetworks. The obtained NCNFs possess high surface area (946 m2 g−1), uniform pore size (2–5 nm), and excellent electron and ion conductivity, which were quite beneficial for electrochemical double-layered supercapacitors (EDLSs). The supercapacitor synthesized from NCNFs electrodes exhibited both extremely high capacitance (up to 613 F g−1 at 1 A g−1) and excellent long-term capacitance retention performance (96% capacitive retention after 20,000 cycles), which established the current processing among the most competitive strategies for the synthesis of high performance supercapacitors.

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Section: Resultssupporting

confidence: 50%

Linear-Polyethyleneimine-Templated Synthesis of N-Doped Carbon Nanonet Flakes for High-performance Supercapacitor Electrodes

Xia

Quan

et al. 2019

Nanomaterials

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“…Biomass is a promising carbon precursor, which dues to its abundance, sustainability and non‐poisonousness. Currently, a large amount of biomass has attracted researchers’ attention, such as corn starch, pine needle, bamboo, pomelo peel, wood, and so on. After physical or chemical activation, biomass activated carbon can greatly increases its specific surface area and porosity, which could facilitate the transfer of charge in the double‐layer structure.…”

Section: Introductionmentioning

confidence: 99%

Effect of Self‐Doped Heteroatoms in Biomass‐Derived Activated Carbon for Supercapacitor Applications

Chen

Yang

et al. 2019

ChemistrySelect

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As a green and effective energy storage device, supercapacitors have been attractive due to their high power density along with long cycle stability. Among various electrode materials, carbon materials have drawn significant attention due to their wonderful properties, such as high specific surface area, electronic conductivity, chemical stability and porous structures. In addition, challenges come from global warming and environmental pollution, biomass derived carbon materials feature the concepts of the sustainable development of chemistry. In this, the review not only summarizes the most advanced progress in biomass derived heteroatoms self‐doped carbon materials for supercapacitor, but also provides important guidelines for the future design of biomass‐derived carbons with heteroatoms doping in specific energy applications.

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“…In an earlier study, Teng et al . showed that because of its porous structure and high effective surface area, carbonized wood can be used as a supercapacitor electrode 21 . In the present study, we are showing that the electrochemical performance of the wood based supercapacitor electrodes can be enhanced tremendously by the addition of nickel nanoparticles (NiNPs).…”

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confidence: 99%

Facile preparation of nickel/carbonized wood nanocomposite for environmentally friendly supercapacitor electrodes

Yaddanapudi

Tian

Teng

et al. 2016

Sci Rep

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We are reporting a facile way to prepare nickel/carbon nanocomposites from wood as a novel electrode material for supercapacitors. The surface morphology and the structure of the as-prepared electrodes were studied by using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results indicate that after high-temperature carbonization process, the wood is converted into graphitic carbon with nickel nanoparticles uniformly distributed within the three dimensional structure of the wood. Electrochemical characterization such as cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge-discharge measurements were conducted. These results showed that the introduction of nickel into the carbonized wood improves the specific capacitance and the cyclic stability of the nanocomposite electrode over that of the pure carbonized wood electrode. The composite electrode displayed an enhanced capacitive performance of 3616 F/g at 8 A/g, and showed an excellent capacitance retention after 6000 charge-discharge cycles. These results endow the nickel nanoparticles impregnated carbonized wood with a great potential for future application in supercapacitors.

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Carbonized Wood for Supercapacitor Electrodes

Cited by 50 publications

References 28 publications

Linear-Polyethyleneimine-Templated Synthesis of N-Doped Carbon Nanonet Flakes for High-performance Supercapacitor Electrodes

Linear-Polyethyleneimine-Templated Synthesis of N-Doped Carbon Nanonet Flakes for High-performance Supercapacitor Electrodes

Effect of Self‐Doped Heteroatoms in Biomass‐Derived Activated Carbon for Supercapacitor Applications

Facile preparation of nickel/carbonized wood nanocomposite for environmentally friendly supercapacitor electrodes

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