Sensitivity Enhancement in Nickel Hydroxide/3D-Graphene as Enzymeless Glucose Detection

Iman Shackery, Umarkant Patil, Min Jung Song, Ji Soo Sohn, Sachin Kulkarni, Surajit Some, Su Chan Lee, Min Sik Nam, Wooyoung Lee, Seong Chan Jun

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


A nickel hydroxide (Ni(OH)2)/3D-graphene composite is used as monolithic free-standing electrode for enzymeless electrochemical detection of glucose. Ni(OH)2 nanoflakes are synthesized by using a simple solution growth procedure on 3D-graphene foam which was grown by chemical vapor deposition (CVD). The pore structure of 3D-graphene allows easy access to glucose with high surface area, which leads to glucose detection with an ultrahigh sensitivity of 3.49mAmM-1cm-2 and a significant lower detection limit up to 24nM. Cyclic voltammetry (CV) and potentionstatic mode is used for non-enzymatic glucose sensing. The impedance and effective surface area have been studied well. The high sensitivity, low detection limit and simple configuration of Ni(OH)2/three dimensional (3D)-graphene composite electrodes can evoke its industrial application in glucose sensing devices.

Original languageEnglish
Pages (from-to)2363-2370
Number of pages8
Issue number10
Publication statusPublished - 2015 Oct

Bibliographical note

Publisher Copyright:
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Electrochemistry


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