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Journal of Sol-Gel Science and Technology
Erschienen in: Journal of Sol-Gel Science and Technology 3/2013

01.09.2013 | Original Paper

Facile synthesis of Co3O4 and Ag/Co3O4 nanosheets and their electrocatalytic properties

verfasst von: Lu Pan, Li Li, Qiyong Zhu

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 3/2013

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Abstract

The precursors of Co3O4 and Ag/Co3O4 composites with different Ag contents were synthesized with assistance of (NH4)2CO3 via a facile hydrothermal process. The final samples were fabricated by calcining each precursor at 400 °C according to TG experiment. The as-prepared samples were identified and characterized by thermogravimetric analysis, X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, and field emission scanning electron microscopy, respectively. The results showed that the morphology of Co3O4 and Ag/Co3O4 composites were sheet-like. Ag nanoparticles were dispersed well in the nanosheets. The samples were used as electrocatalysts modified directly on a glassy carbon electrode for p-nitrophenol reduction in a basic solution. The results showed that p-nitrophenol could be reduced at a large peak current but a higher peak potential with Co3O4, at lower potentials with Ag/Co3O4 composites. Ag/Co3O4 composite with 3 % Ag showed more efficiently electrocatalytic activity than other composites. The present method suggested the potential application of Ag/Co3O4 composites in electrocatalysis.
Vorheriger Artikel Tunable optical stop band of silica shell photonic crystals
Nächster Artikel Improved optical and electrical properties of sol–gel-derived boron-doped zinc oxide thin films

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Metadaten
Titel
Facile synthesis of Co3O4 and Ag/Co3O4 nanosheets and their electrocatalytic properties
verfasst von
Lu Pan
Li Li
Qiyong Zhu
Publikationsdatum
01.09.2013
Verlag
Springer US
Erschienen in
Journal of Sol-Gel Science and Technology / Ausgabe 3/2013
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-013-3116-4

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