Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 239, Issue -, Pages 536-543Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.08.048
Keywords
Au-Pd bimetallic nanoparticles; MoS2 nanosheets; H2O2; Glucose; Electrochemical sensing
Funding
- National Natural Science Foundation of China [21273112]
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The molybdenum disulfide (MoS2) nanosheets supported Au-Pd bimetallic nanoparticles were synthesized using a facile thermal co-reduction method. The Au-Pd/MoS2 nanocomposites showed good electrocatalytic activities toward the reduction of hydrogen peroxide (H2O2) in neutral solution and the oxidation of glucose in alkaline solution, attributed to the synergistic effects of the Au-Pd bimetallic nanoparticles and MoS2 nanosheets. The fabricated non-enzymatic electrochemical sensors exhibited the linear responses of H2O2 and glucose in the concentration ranges of 0.8 mu M-10 mM and 0.5-20 mM with the detection limits of 0.16 mu M and 0.40 mM (S/N= 3), respectively, together with good stability and reproducibility. The Au-Pd/MoS2 nanocomposites provide new potential materials for the development of other non-enzymatic sensors. (C) 2016 Elsevier B.V. All rights reserved.
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