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Issue 28, 2017
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Ni-Based metal–organic framework derived Ni@C nanosheets on a Ni foam substrate as a supersensitive non-enzymatic glucose sensor

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Abstract

Uniform and compact porous Ni@C nanosheet membranes derived from Ni-based metal organic frameworks were successfully anchored on a Ni foam substrate via hydrothermal treatment with successive pyrolysis. The Ni@C/Ni foam was employed as a self-supporting electrode for non-enzymatic glucose sensing and exhibited remarkable electrocatalytic activity. It can be attributed to the hierarchical structure composed of Ni@C nanosheet array membranes freestanding on Ni foam and mesoporous Ni@C nanosheets. An ultrahigh sensitivity of 32.79 mA mM−1 cm−2 and a low detection limit of 50 nM were realized, which were superior to some existing glucose sensors. Meanwhile, a reasonable linear range from 0.15 μM to 1.48 mM was achieved. Furthermore, the Ni@C/Ni foam possessed various merits, such as excellent selectivity, good reusability, acceptable reproducibility, satisfying long-term stability and high tolerance to chloride ions. We further demonstrated its practicability by detecting glucose concentrations in human blood serum samples. The results enable the Ni@C/Ni foam to be an attractive candidate for practical application in non-enzymatic glucose sensing.

Graphical abstract: Ni-Based metal–organic framework derived Ni@C nanosheets on a Ni foam substrate as a supersensitive non-enzymatic glucose sensor

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Publication details

The article was received on 18 May 2017, accepted on 13 Jun 2017 and first published on 15 Jun 2017


Article type: Paper
DOI: 10.1039/C7TB01363A
Citation: J. Mater. Chem. B, 2017,5, 5549-5555
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    Ni-Based metal–organic framework derived Ni@C nanosheets on a Ni foam substrate as a supersensitive non-enzymatic glucose sensor

    L. Zhang, Y. Ding, R. Li, C. Ye, G. Zhao and Y. Wang, J. Mater. Chem. B, 2017, 5, 5549
    DOI: 10.1039/C7TB01363A

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