Journal
RSC ADVANCES
Volume 4, Issue 109, Pages 63784-63791Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra12121j
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Funding
- Natural Science Foundation of China [21275104, 21177090, 21175094]
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Heteroatom doped porous carbon (HDPC) is fabricated using human hair as a carbon source via an acid pretreatment procedure and subsequent KOH activation. With the introduction of acid pretreatment, the obtained HDPC possesses a large specific surface area and an appropriate heteroatom doping level. As an anode material for lithium ion batteries, the as-synthesized HDPC delivers a superior specific capacity of 1331 mA h g(-1) at 0.1 A g(-1) and shows an impressive rate capability of 470 mA h g(-1) at 5 A g(-1). Even at an ultrahigh current density of 10 A g(-1), the reversible capacity is still as high as 205 mA h g(-1). The excellent electrochemical performance of HDPC could be ascribed to the high specific surface area, well-formed micro- and mesoporosity and heteroatom doping effects.
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