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One-dimensional porous nanofibers of Co3O4 on the carbon matrix from human hair with superior lithium ion storage performance.

ABSTRACT: One-dimensional (1D) hierarchical porous nanofibers of Co3O4 possessing of (220) facets on the carbon matrix from human hair (H2@Co3O4) with 20-30?nm in width and 3-5??m in length are prepared by a facile solvothermal and calcination approach. The well crystallized small Co3O4 particles with the diameter of about 8-12?nm were closely aggregated together in the nanofibers. Electrochemical analyses show that the first discharge capacity of H2@Co3O4 electrode is 1368?mAh g(-1) at the current density of 0.1?A g(-1) based on the total mass of composite. A high reversible capacity of 916?mAh g (-1) was obtained over 100 cycles at 0.1?A g(-1), presenting a good cycling stability. When cycled at a high current density of 1 and 2?A g(-1), the specific capacity of 659 and 573?mAh g(-1) could be still achieved, respectively, indicating a superior power capability.

SUBMITTER: Tan Y

PROVIDER: S-EPMC4511864 | biostudies-other | 2015

REPOSITORIES: biostudies-other

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One-dimensional porous nanofibers of Co3O4 on the carbon matrix from human hair with superior lithium ion storage performance.

Tan Yanli Y Gao Qiuming Q Yang Chunxiao C Yang Kai K Tian Weiqian W Zhu Lihua L

Scientific reports 20150723

One-dimensional (1D) hierarchical porous nanofibers of Co3O4 possessing of (220) facets on the carbon matrix from human hair (H2@Co3O4) with 20-30 nm in width and 3-5 μm in length are prepared by a facile solvothermal and calcination approach. The well crystallized small Co3O4 particles with the diameter of about 8-12 nm were closely aggregated together in the nanofibers. Electrochemical analyses show that the first discharge capacity of H2@Co3O4 electrode is 1368 mAh g(-1) at the current densit ...[more]

PMID: 26201874

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