Nickel hydroxide nanoparticle activated semi-metallic TiO2 nanotube arrays for non-enzymatic glucose sensing

Zhi Da Gao, Jing Guo, Nabeen K. Shrestha, Robert Hahn, Yan Yan Song, Patrik Schmuki

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

Semi-metallic TiO2 nanotube arrays (TiOxCy NTs) have been decorated uniformly with Ni(OH)2 nanoparticles without the aid of a polymer binder. The resulting hybrid nanotube arrays exhibit excellent catalytic activity towards non-enzymatic glucose electro-oxidation. The anodic current density of the glucose oxidation is significantly improved compared with traditional TiO2 nanotubes decorated with Ni(OH)2. Moreover, the Ni(OH)2/TiO xCy NT-based electrode shows a fast response, high sensitivity, wide linear range, good selectivity and stability towards glucose electro-oxidation, and thus provides a promising and cost-effective sensing platform for non-enzymatic glucose detection. Sensing glucose: Semi-metallic TiO2 nanotube arrays (TiOxCy NTs) have been decorated uniformly with Ni(OH)2 nanoparticles without the aid of a polymer binder. The resulting hybrid nanotube arrays exhibit excellent catalytic activity towards non-enzymatic glucose electro-oxidation. The anodic current density for the oxidation of glucose is significantly improved in comparison with traditional TiO2 nanotubes decorated with Ni(OH)2 (see figure).

Original languageEnglish
Pages (from-to)15530-15534
Number of pages5
JournalChemistry - A European Journal
Volume19
Issue number46
DOIs
StatePublished - 11 Nov 2013

Keywords

  • electrooxidation
  • nanostructures
  • nickel
  • sensors
  • titanium

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