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Issue 11, 2014
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Low-cost and binder-free, paper-based cobalt electrode for sodium borohydride electro-oxidation

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Abstract

A low-cost and binder-free cobalt electrode is prepared by the electrodeposition of Co nanoplates onto a flexible conductive substrate, which is prepared simply by scratching a piece of A4 paper with a common 8B pencil. The morphology and phase structure of the cobalt–graphite–paper (CGP) electrode are characterized by scanning electron microscopy, transmission electron microscopy and an X-ray diffractometer. The catalytic activity of the CGP electrode for NaBH4 electro-oxidation is investigated by cyclic voltammetry and chronoamperometry. The catalyst combines tightly with the paper and exhibits a good stability. The oxidation current density reaches up to 180 mA cm−2 in 1 mol dm−3 NaOH and 0.10 mol dm−3 NaBH4 at −0.4 V.

Graphical abstract: Low-cost and binder-free, paper-based cobalt electrode for sodium borohydride electro-oxidation

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Publication details

The article was received on 28 Apr 2014, accepted on 20 Aug 2014 and first published on 20 Aug 2014


Article type: Paper
DOI: 10.1039/C4NJ00677A
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Citation: New J. Chem., 2014,38, 5376-5381
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    Low-cost and binder-free, paper-based cobalt electrode for sodium borohydride electro-oxidation

    D. Zhang, K. Ye, J. Yin, K. Cheng, D. Cao and G. Wang, New J. Chem., 2014, 38, 5376
    DOI: 10.1039/C4NJ00677A

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