Synergistic oxidation of NADH on bimetallic CoPt nanoparticles decorated carbon nitride nanotubes

Title
Synergistic oxidation of NADH on bimetallic CoPt nanoparticles decorated carbon nitride nanotubes
Authors
백운규
Keywords
Carbon nitride nanotube; Carbon nanotube; CoPt nanoparticle; NADH; Electrochemical oxidation
Issue Date
2015-03
Publisher
ELSEVIER SCIENCE SA
Citation
SENSORS AND ACTUATORS B-CHEMICAL, v. 208, Page. 204-211
Abstract
We demonstrate that carbon nitride nanotube (CNNT) hybrids modified with CoPt nanoparticles (CoPt NPs) oxidize reduced nicotinamide adenine dinucleotide (NADH) to a greater extent than carbon nanotubes (CNTs) or CNNTs alone due to synergistic interactions between the CNNTs and the CoPt NPs through the improved internal network. Heterogeneous nitrogen atoms in the sp(2) carbon network provide strong binding sites for in-situ synthesis of CoPt NPs of homogeneous size. The increase in heterogeneous charge transfer on the CoPt-CNNT hybrid electrode enhanced the electrochemical oxidation of NADH at a low applied potential compared to those for pristine CNTs or CNNTs. Our results suggest that CoPt-CNNT hybrids are highly stable and ideal for use in electrochemical sensing. (C) 2014 Elsevier B.V. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0925400514013756http://hdl.handle.net/20.500.11754/23229
ISSN
0925-4005
DOI
http://dx.doi.org/10.1016/j.snb.2014.11.013
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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