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Carbon nanofiber supercapacitors with large areal capacitances
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10.1063/1.3273864
/content/aip/journal/apl/95/24/10.1063/1.3273864
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/24/10.1063/1.3273864
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Figures

Image of FIG. 1.
FIG. 1.

(a) Photograph of Ni foam before and after CNF growth. (b) SEM image of pristine Ni foam. SEM images of CNFs after growth at (c) low and (d) high magnification confirm that a conformal layer of CNFs coats the Ni foam.

Image of FIG. 2.
FIG. 2.

(a) Proposed mechanism for Ni diffusion during CNF growth. (b) SEM image of pristine Ni foam, indicating a solid cross section. (c) SEM image of alumina-coated Ni foam after CNF growth, indicating a hollow cross section. (d) SEM image of noncoated Ni foam after CNF growth, indicating a solid cross section.

Image of FIG. 3.
FIG. 3.

(a) Voltage profile at (dc current, zero frequency). (b) Cyclic voltammograms for our samples, exhibiting rectangular behavior. (c) Plot of specific capacitance vs specific current, both per-mass and per-area. (d) Bar graph comparing our per-area capacitance to those previously reported. (e) Per-area Ragone plot comparing our per-area power and energy densities to those previously reported.

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/content/aip/journal/apl/95/24/10.1063/1.3273864
2009-12-15
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Carbon nanofiber supercapacitors with large areal capacitances
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/24/10.1063/1.3273864
10.1063/1.3273864
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