Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 190, Issue -, Pages 645-650Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2013.08.091
Keywords
alpha-Fe2O3 nanoparticles; Reduced graphene oxide; Nonenzymatic; Sensor
Funding
- National Natural Science Foundation of China [51202079, 21201070]
- Priority Academic Program development of Jiangsu Higher Education Institutions
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Hematite nanoparticles (alpha-Fe2O3) are successfully decorated on the reduced graphene oxide (rGO) sheets through a simple, one-step, hydrothermal method without addition of other reducing agents. The alpha-Fe2O3/rGO hybrid was characterized by scanning electron micrographs, X-ray diffraction, X-ray photoelectron spectroscopy, and Raman spectroscopy. This alpha-Fe2O3/rGO hybrid has been successfully applied in the catalytic performance toward the reduction of H2O2. The nonenzymatic sensor demonstrates a linear relationship over a wide concentration range of 5.0-4495.0 mu M (R = 0.9998), a low detection limit of 1.0 mu M, and a high sensitivity of 126.9 mu A cm(-2) mM(-1) to the detection of H2O2. (C) 2013 Elsevier B.V. All rights reserved.
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