Ni-Based metal–organic framework derived Ni@C nanosheets on a Ni foam substrate as a supersensitive non-enzymatic glucose sensor. Issue 28 (3rd July 2017)

• Record Type: Journal Article
• Authors: Zhang, Li; Ding, Yaru; Li, Ranran; Ye, Chen; Zhao, Guangyu; Wang, Yan
• Is Part Of: Journal of materials chemistry. Volume 5:Issue 28(2017)
• Page Start: 5549
• Page End: 5555
• Publication Date: 2017-07-03
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Biomedical materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c7tb01363a
• Languages: English
• ISSNs: 2050-750X

Abstract

Abstract : Uniform and compact porous Ni@C nanosheet membranes on Ni foam showing remarkable electrocatalytic activity for non-enzymatic glucose sensing. 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.