Electronic Supplementary Information (ESI) Supplementary Information (ESI) ... Sreekumaran Nair)...

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1 Electronic Supplementary Information (ESI) Electrospun α-Fe 2 O 3 Nanostructures for Supercapacitor Applications G. Binitha, a M. S. Soumya, a Asha Anish Madhavan, a P. Praveen, a A. Balakrishnan, a K. R. V. Subramanian, a M. V.Reddy, b Shantikumar V. Nair, a A. Sreekumaran Nair, a,* and N. Sivakumar a,* a Nanosolar Division, Amrita Centre for Nanoscience and Molecular Medicine, Ponekkara, Kochi, India. Email: [email protected] (N. Sivakumar); [email protected] (A. Sreekumaran Nair) Fax: +91-484-2802020; Tel: +91-484-2802020 b Department of Physics, National University of Singapore, Singapore 117542. Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A This journal is © The Royal Society of Chemistry 2013

Transcript of Electronic Supplementary Information (ESI) Supplementary Information (ESI) ... Sreekumaran Nair)...

Page 1: Electronic Supplementary Information (ESI) Supplementary Information (ESI) ... Sreekumaran Nair) Fax: ... keV 0 200 400 600 800 1000 1200 1400 1600 1800 2000 nts OKa FeLl

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Electronic Supplementary Information (ESI)

Electrospun α-Fe2O3 Nanostructures for Supercapacitor

Applications

G. Binitha,a M. S. Soumya,

a Asha Anish Madhavan,

a P. Praveen,

a A. Balakrishnan,

a K. R. V.

Subramanian,a

M. V.Reddy,b Shantikumar V. Nair,

a A. Sreekumaran Nair,

a,* and N.

Sivakumara,*

aNanosolar Division, Amrita Centre for Nanoscience and Molecular Medicine, Ponekkara,

Kochi, India.

Email: [email protected] (N. Sivakumar); [email protected] (A.

Sreekumaran Nair)

Fax: +91-484-2802020; Tel: +91-484-2802020

bDepartment of Physics, National University of Singapore, Singapore 117542.

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry AThis journal is © The Royal Society of Chemistry 2013

mailto:[email protected]
mailto:[email protected]
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ESI 1

EDX spectra of α-Fe2O3 PF.

0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00

keV

0

200

400

600

800

1000

1200

1400

1600

1800

2000

Counts

OK

aF

eL

lF

eL

a

FeK

esc

FeK

a

FeK

b

Au

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry AThis journal is © The Royal Society of Chemistry 2013

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ESI 2

EDX spectra of α-Fe2O3 NG.

A

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry AThis journal is © The Royal Society of Chemistry 2013

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ESI 3

XPS spectrum (wide) of the -Fe2O3 PFs (black) and NGs (red) nanostructures showing the

elemental composition. The spectrum also indicates the presence of a small amount of

adventitious C1s feature.

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry AThis journal is © The Royal Society of Chemistry 2013

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ESI 4

CV curves of PF electrode at different cycle number (a). CV curves of NG electrode at

different cycle number (b).

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry AThis journal is © The Royal Society of Chemistry 2013

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ESI 5

A comparison of the CV traces of PF, NG and the Ni substrate at a scan rate of 100 mV/s. It

is obvious from the traces that the electrochemical activity of the substrate is negligible in

comparison to that of the metal oxides.

Electronic Supplementary Material (ESI) for Journal of Materials Chemistry AThis journal is © The Royal Society of Chemistry 2013


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