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Cellulose-Derived Supercapacitors from the Carbonisation of Filter Paper.

Jiang L, Nelson GW, Kim H, Sim IN, Han SO, Foord JS - ChemistryOpen (2015)

Bottom Line: Electrochemical capacitance in the range of ≈1.8-117 F g(-1) was achieved, with FP carbonised at 1500 °C showing the best performance.These results show that carbonised FP, without the addition of composite materials, exhibits good supercapacitance performance, which competes well with existing electrodes made of carbon-based materials.Furthermore, given the lower cost and renewable source, cellulose-based materials are the more eco-friendly option for energy storage applications.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, University of Oxford South Parks Rd, Oxford, OX1 3TA, UK.

ABSTRACT
Advanced carbon materials are important for the next-generation of energy storage apparatus, such as electrochemical capacitors. Here, the physical and electrochemical properties of carbonised filter paper (FP) were investigated. FP is comprised of pure cellulose and is a standardised material. After carbonisation at temperatures ranging from 600 to 1700 °C, FP was contaminant-free, containing only carbon and some oxygenated species, and its primary fibre structure was retained (diameter ≈20-40 μm). The observed enhancement in conductivity of the carbonised FP was correlated with the carbonisation temperature. Electrochemical capacitance in the range of ≈1.8-117 F g(-1) was achieved, with FP carbonised at 1500 °C showing the best performance. This high capacitance was stable with >87 % retained after 3000 charge-discharge cycles. These results show that carbonised FP, without the addition of composite materials, exhibits good supercapacitance performance, which competes well with existing electrodes made of carbon-based materials. Furthermore, given the lower cost and renewable source, cellulose-based materials are the more eco-friendly option for energy storage applications.

No MeSH data available.


Survey X-ray photoelectron spectroscopy (XPS) spectra of filter paper (FP) carbonised at 1500 °C, with the carbon and oxygen signals indicated. Inset is the narrow spectra of the carbon peak.
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fig03: Survey X-ray photoelectron spectroscopy (XPS) spectra of filter paper (FP) carbonised at 1500 °C, with the carbon and oxygen signals indicated. Inset is the narrow spectra of the carbon peak.

Mentions: X-ray photoelectron spectroscopy (XPS) was used to analyse the surface chemical composition of the carbonised FP, as displayed in Figure 3. Only peaks at 285.1 and 532.5 eV can be significantly observed from the spectra, which are assigned as originating from C 1s and O 1s photoelectrons, respectively; the ratio of C:O is about 39:1. Since photoelectron signals originating from other elemental core levels are negligible, it suggests that the carbonised FP is contaminant-free and carbon-rich with some O-based groups at the surface.


Cellulose-Derived Supercapacitors from the Carbonisation of Filter Paper.

Jiang L, Nelson GW, Kim H, Sim IN, Han SO, Foord JS - ChemistryOpen (2015)

Survey X-ray photoelectron spectroscopy (XPS) spectra of filter paper (FP) carbonised at 1500 °C, with the carbon and oxygen signals indicated. Inset is the narrow spectra of the carbon peak.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4608524&req=5

fig03: Survey X-ray photoelectron spectroscopy (XPS) spectra of filter paper (FP) carbonised at 1500 °C, with the carbon and oxygen signals indicated. Inset is the narrow spectra of the carbon peak.
Mentions: X-ray photoelectron spectroscopy (XPS) was used to analyse the surface chemical composition of the carbonised FP, as displayed in Figure 3. Only peaks at 285.1 and 532.5 eV can be significantly observed from the spectra, which are assigned as originating from C 1s and O 1s photoelectrons, respectively; the ratio of C:O is about 39:1. Since photoelectron signals originating from other elemental core levels are negligible, it suggests that the carbonised FP is contaminant-free and carbon-rich with some O-based groups at the surface.

Bottom Line: Electrochemical capacitance in the range of ≈1.8-117 F g(-1) was achieved, with FP carbonised at 1500 °C showing the best performance.These results show that carbonised FP, without the addition of composite materials, exhibits good supercapacitance performance, which competes well with existing electrodes made of carbon-based materials.Furthermore, given the lower cost and renewable source, cellulose-based materials are the more eco-friendly option for energy storage applications.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, University of Oxford South Parks Rd, Oxford, OX1 3TA, UK.

ABSTRACT
Advanced carbon materials are important for the next-generation of energy storage apparatus, such as electrochemical capacitors. Here, the physical and electrochemical properties of carbonised filter paper (FP) were investigated. FP is comprised of pure cellulose and is a standardised material. After carbonisation at temperatures ranging from 600 to 1700 °C, FP was contaminant-free, containing only carbon and some oxygenated species, and its primary fibre structure was retained (diameter ≈20-40 μm). The observed enhancement in conductivity of the carbonised FP was correlated with the carbonisation temperature. Electrochemical capacitance in the range of ≈1.8-117 F g(-1) was achieved, with FP carbonised at 1500 °C showing the best performance. This high capacitance was stable with >87 % retained after 3000 charge-discharge cycles. These results show that carbonised FP, without the addition of composite materials, exhibits good supercapacitance performance, which competes well with existing electrodes made of carbon-based materials. Furthermore, given the lower cost and renewable source, cellulose-based materials are the more eco-friendly option for energy storage applications.

No MeSH data available.