Synthesis of Ultrathin Co₃O₄ Nanoflakes Film Material for Electrochemical Sensing

Authors

Hui-juan WANG, College of Electrical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China;Hebei Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, Hebei, China.;Follow

Corresponding Author

Hui-juan WANG(hjwang120@126.com)

Abstract

Ultrathin cobalt oxide (Co₃O₄ ) nanoflakes film material was synthesized by using an electro-deposited cobalt layer as a raw material through a simple oxidation method and followed by a heat treatment at 350 ^oC. The physical characterizations of the Co₃O₄ nanoflakes film were performed by scanning electron microscopy (SEM), X-ray diffraction (XRD) and transmission electron microscopy (TEM) technologies, and the electrochemical activity was measured by cyclic voltammetry (CV). As a promising material for electrochemical sensing, the as-synthesized ultrathin Co₃O₄ nanoflakes film material exhibited excellent electrochemical activity for H₂O₂ with a wide linear detection range （0 ~ 4 mmol•L^-1） and high sensitive current response (~ 1.15 mA•cm^-2).

Graphical Abstract

Keywords

Co3O4, film material, ultrathin nanoflakes, electrochemical sensing; H2O2 detecting

DOI Link

https://doi.org/10.13208/j.electrochem.160124

Publication Date

2016-12-28

Online Available Date

2016-05-20

Revised Date

2016-04-12

Received Date

2016-01-24

Recommended Citation

Hui-juan WANG. Synthesis of Ultrathin Co₃O₄ Nanoflakes Film Material for Electrochemical Sensing[J]. Journal of Electrochemistry, 2016 , 22(6): 631-635.
DOI: 10.13208/j.electrochem.160124
Available at: https://jelectrochem.xmu.edu.cn/journal/vol22/iss6/12