Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 206, Issue -, Pages 407-414Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2014.09.058
Keywords
MnO2; CNT; Synergistic effect; Glucose sensor; Supercapacitor
Funding
- National Science Foundation for Fostering Talents in Basic Research of China [J1103307]
- Basic Scientific Research Business Expenses of the Central University
- Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University [LZUMMM2014001, LZUMMM2014014]
- National College Students' Innovative Entrepreneurial Training Program of Lanzhou University [201410730089]
- Fundamental Research Funds for the Central University [lzujbky-2014-189]
Ask authors/readers for more resources
We successfully developed a 3D porous CNT/MnO2 composite electrode based on manganese oxide and carbon nanotubes (CNTs) by a simple dipping and drying process followed by a potentionstatic deposition technology for non-enzymatic glucose detection and supercapacitor applications. The composition and structure of the as-prepared electrode were characterized by energy-dispersive X-ray spectroscopy (EDX), field Emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM), respectively. The electrochemical performances were evaluated by cyclic voltammetry (CV), chronopotentiometry (CP) and Amperometric i-t techniques. The as-prepared sensor could accurately detect glucose in 0.5 M NaOH solution in the presence of interferences, such as ascorbic acid, uric acid and fructose, with a high sensitivity up to 3406.4 mu A/(cm(2) mM). These excellent electrochemical performances were closely related to the synergistic effect of two components and the unique 3D porous architecture of the electrode. A symmetrical supercapacitor has been also fabricated using the novel electrodes and it exhibited a high specific capacitance of 160.5 F/g at the current density of 1 A/g which can rival with the asymmetrical supercapacitor. Such symmetrical device delivered prominent energy density of 22.3 Wh kg(-1) at the power density of 500 W kg(-1). All of these perfect performances paved the way for this hybrid to be a potential competitive candidate in the application of glucose sensor and supercapacitor. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available