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Synthesis of NiO nanomaterials with various morphologies and their electrocatalytic performances for p-nitrophenol reduction

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Abstract

In the work, several facile and easily controlled procedures were designed to successfully synthesize a few NiO samples with various morphologies, including nanosheets, nanobelts, nanoparticles and empty microspheres, via a hydrothermal method. The as-prepared samples were characterized by X-ray powder diffractometer, TEM and field emission scanning electron microscopy technologies. The results revealed that the as-synthesized NiO samples displayed expected nanosheets, nanobelts, nanoparticles and empty microspheres in shape. The electrocatalytic performance of each NiO sample modified on a glassy carbon electrode for p-nitrophenol reduction in a basic solution using cyclic voltammetry method was investigated. The results indicated that the glassy carbon electrode modified with each NiO sample showed enhanced electrocatalytic activity by comparing a bare glassy carbon electrode, and especially NiO nanopatricles and empty microsphere exhibited the higher electrocatalytic activty for p-nitrophenol reduction.

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Authors and Affiliations

  1. Department of Chemistry and Chemical Engineering, Huainan Normal University, Huainan, 232001, Anhui, China

    Lu Pan, Li Li & Yonghong Chen

  2. Anhui Key Laboratory of Low Temperature Co-fired Material, Huainan Normal University, Huainan, 232001, China

    Lu Pan & Yonghong Chen

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  1. Lu Pan
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  2. Li Li
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  3. Yonghong Chen
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Correspondence to Lu Pan.

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Pan, L., Li, L. & Chen, Y. Synthesis of NiO nanomaterials with various morphologies and their electrocatalytic performances for p-nitrophenol reduction. J Sol-Gel Sci Technol 62, 364–369 (2012). https://doi.org/10.1007/s10971-012-2735-5

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  • DOI: https://doi.org/10.1007/s10971-012-2735-5

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