Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 162, Issue 12, Pages B312-B318Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0111512jes
Keywords
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Funding
- National Science Foundation of China [51272147]
- Academic Backbone Cultivation Program of Shaanxi University of Science Technology [XSGP201203]
- Graduate Innovation Found of Shaanxi University of Science and Technology
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Flower-like MoS2 modified reduced graphene oxide (MoS2-rGO) nanocomposites have been successfully synthesized by using one-spot hydrothermal method. The morphology and structure of the MoS2-rGO nanocomposite were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and Raman spectra. The MoS2-rGO was used as anode materials for lithium-ion batteries (LIBs) and was used to immobilize hemoglobin (Hb) to fabricate a mediator-free biosensor. As anode materials for lithium-ion batteries, MoS2-rGO displayed excellent specific capacity in the initial discharge and charge capacities of 1785 and 1435 mAh g(-1) with excellent cycling stability. Meanwhile, the prepared mediator-free biosensors displayed good performance for the detection of H2O2 with a wide linear range of 0.1 to 250 mu M and a high sensitivity of 346.6 mu A mM(-1) cm(-2), as well as an extremely low detection limit of 25 nM. This work suggests that MoS2-rGO is a potential electrode material not only for lithium-ion batteries but also for mediator-free biosensor. (C) 2015 The Electrochemical Society. All rights reserved.
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