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Nitrogen-doped porous carbon nanosheets as low-cost, high-performance anode material for sodium-ion batteries.

Nitrogen-doped porous carbon nanosheets as low-cost, high-performance anode material for sodium-ion batteries.

ChemSusChem (2012-12-12)

Heng-guo Wang, Zhong Wu, Fan-lu Meng, De-long Ma, Xiao-lei Huang, Li-min Wang, Xin-bo Zhang

摘要

Between the sheets: Sodium-ion batteries are an attractive, low-cost alternative to lithium-ion batteries. Nitrogen-doped porous carbon sheets are prepared by chemical activation of polypyrrole-functionalized graphene sheets. When using the sheets as anode material in sodium-ion batteries, their unique compositional and structural features result in high reversible capacity, good cycling stability, and high rate capability.

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Sigma-Aldrich

氢氧化钾, ACS reagent, ≥85%, pellets

Sigma-Aldrich

氢氧化钾, reagent grade, 90%, flakes

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氢氧化钾溶液, 45 wt. % in H₂O

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氢氧化钾, semiconductor grade, pellets, 99.99% trace metals basis (Purity excludes sodium content.)

Supelco

氢氧化钾溶液, volumetric, 8.0 M KOH (8.0N)

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氢氧化钾, ≥85% KOH basis, pellets, white

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氢氧化钾, BioXtra, ≥85% KOH basis

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氢氧化钾, technical, ≥85%, powder

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氢氧化钾, puriss., meets analytical specification of Ph. Eur., BP, 85-100.5%, pellets

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氢氧化钾, pellets, reag. Ph. Eur., ≥85%

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聚吡咯, conductivity 10-50 S/cm (pressed pellet)

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氢氧化钾, puriss. p.a., ≥86% (T), pellets

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聚吡咯, doped, conductivity 30 S/cm (bulk), extent of labeling: 20 wt. % loading, composite with carbon black

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氢氧化钾溶液, 0.1 M KOH in water (0.1N), Eluent concentrate for IC

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聚吡咯, doped, conductivity 0.5-1.5 S/cm (pressed pellet, typical), extent of labeling: ~5 wt. % loading, coated on titanium dioxide

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氢氧化钾, tested according to Ph. Eur.