Preparation and performance of straw based activated carbon for supercapacitor in non-aqueous electrolytes

Li, Xueliang; Han, Changlong; Chen, Xiangying; Shi, Chengwu

doi:10.1016/j.micromeso.2010.01.007

Cited by 152 publications

(58 citation statements)

References 23 publications

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“…Especially, as demonstrated in Figure 4(c), KOH-activated porous carbons from abundant natural biomass sources, such as pig bone, fish scale, wheat flour, wheat straw, corncob, fungi, banana peel and pomelo peel gelatin, have been prepared for the energy conversion and storage application [65][66][67][68][69][70][71][72][73].…”

Section: Chemical Activationmentioning

confidence: 99%

Biomass-derived renewable carbon materials for electrochemical energy storage

Gao

Zhang

Song

et al. 2016

Materials Research Letters

446

181

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Electrochemical energy storage devices, such as supercapacitors and batteries, have been proven to be the most effective energy conversion and storage technologies for practical application. However, further development of these energy storage devices is hindered by their poor electrode performance. Carbon materials used in supercapacitors and batteries are often derived from nonrenewable resources under harsh environments. Naturally abundant biomass is a green, alternative carbon source with many desired properties. This review article presents state of the art of renewable carbon materials derived from natural biomasses with an emphasis on their applications in supercapacitors and lithium-sulfur batteries. IMPACT STATEMENTThis review paper provides a comprehensive understanding for obtaining renewable carbons from natural biomass precursors via various activation methods for electrochemical energy storage application, especially for supercapacitor and lithium sulfur battery. ARTICLE HISTORY

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Section: Chemical Activationmentioning

confidence: 99%

Biomass-derived renewable carbon materials for electrochemical energy storage

Gao

Zhang

Song

et al. 2016

Materials Research Letters

446

181

View full text Add to dashboard Cite

show abstract

“…3b, pores in both bio-char samples demonstrated incomplete distribution near the lowest pore size limit, revealing the existence of micropores. Rapidly decreasing slopes were observed for all samples, and no peaks appeared at the entire pore diameter region, indicating the broad pore diameter distribution in the bio-char structure (Li et al 2010). Thus, CB-550 exhibited greater porosity development than CB-450 and CB-350.…”

Section: Pore Texture Analysismentioning

confidence: 89%

Effect of Temperature on the Evolution of Physical Structure and Chemical Properties of Bio-char Derived from Co-pyrolysis of Lignin with High-Density Polyethylene

Chen¹,

Shi²,

Nguyen³

et al. 2016

BioResources

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Bio-chars were produced by co-pyrolysis of lignin with high-density polyethylene at 350 °C, 450 °C, and 550 °C. X-ray diffraction (XRD), Raman spectroscopy, automated surface area and pore size analysis, scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and electron spin resonance (ESR) spectroscopy were performed on bio-char to reveal the effect of temperature on its physical structure and chemical properties. All of the bio-chars demonstrated a highly disordered, turbostratic structure and exhibited a wide pore distribution. Dramatic losses of carbonyl, hydroxyl, and C-H groups indicated the development of condensed aromatic structure in the bio-chars. Specifically, biochar produced at 450 °C showed the highest degree of aromaticity, which is the relative content of aromatic structure with small fused rings and free radical concentration. This structure has more potential application in composite production and as solid fuel for its combustion or gasification. Moreover, biochar produced at 550 °C had the greatest porosity development, favoring its use as a precursor for activated carbon production.

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“…As a kind of new energy storage device between battery and conventional capacitor, supercapacitor has drawn much attention recently due to its high power density and long cycle life [1][2][3][4]. Besides, it was assumed to be one of the most promising energy storage devices for various applications such as brake energy recovery systems, hybrid electrical vehicles, digital telecommunication systems [5,6], etc.…”

Section: Introductionmentioning

confidence: 99%

Oxidation-Ultrasound Process on Removing Potassium Ions from Activated Carbon for Improving Electrochemical Properties of Supercapacitor

Sun¹

2016

Supercapacitor Design and Applications

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To produce pure activated carbon (AC) with low potassium ions (K + ) content for supercapacitor, coconut-shell AC activated by KOH was treated with a novel oxidation-ultrasound process on the basis of hydrochloric acid (HCl) washing. The electrochemical performances of the ACs as supercapacitor electrodes were characterized by cyclic voltammetry (CV), galvanostatic charge-discharge (GC), and electrochemical impedance spectroscopy (EIS). Results showed that the obtained AC, which was washed with 1.0 wt% HCl solution for 120 min and subsequently treated with 0.6 wt% H 2 O 2 solution at 60°C in an ultrasonic oscillator for 8 h, possessed a K + content of 46 mg/kg, much lower than that of 417 mg/kg of the AC without oxidationultrasound treatment. Furthermore, a large specific surface area and pore volume of 3460 m 2 /g and 1.869 cm 3 /g, respectively, were obtained for AC after oxidation-ultrasound treatment. A high specific capacitance of 306 F/g at the current density of 1 A/g in 1 M H 2 SO 4 electrolyte was observed for the prepared AC, indicating it has good electrochemical performances, and remained at 294 F/g with a capacitance retention of 96% after 3000 cycles, indicating excellent stability and capacitive behavior of the AC electrode for supercapacitor.

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Preparation and performance of straw based activated carbon for supercapacitor in non-aqueous electrolytes

Cited by 152 publications

References 23 publications

Biomass-derived renewable carbon materials for electrochemical energy storage

Biomass-derived renewable carbon materials for electrochemical energy storage

Effect of Temperature on the Evolution of Physical Structure and Chemical Properties of Bio-char Derived from Co-pyrolysis of Lignin with High-Density Polyethylene

Oxidation-Ultrasound Process on Removing Potassium Ions from Activated Carbon for Improving Electrochemical Properties of Supercapacitor

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