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Title: Nanoflakes of an aminoacid-based chiral coordination polymer: Synthesis, optical and electrochemical properties, and application in electrochemical sensing of H{sub 2}O{sub 2}

Nanoflakes of an aminoacid-based chiral coordination polymer (CP), [Cu{sub 2}(tyr){sub 2}(bipy)]{sub n}, were synthesized successfully in the presence of surfactant, as evidenced by the XRD and SEM results. UV–vis absorption spectrometry and fluorescence spectrometry were used to investigate the optical properties of the CP, which was found to be mainly attributed to the ligands, while the forming of the CP caused only slight change. On the other hand, Cu(II) ions acted as electrocatalytic active sites of the CP, as evidenced by cyclic voltammetry. The CP also showed good performance in the electrochemical sensing of H{sub 2}O{sub 2}: sensitivity of 85.6 mA mol{sup −1} L cm{sup −2}, linear range of 1.0×10{sup −5}–7.69×10{sup −3} M, detection limit of 1.0×10{sup −5} M (S/N=3), and fast response in mere 5 s. - Graphical abstract: Nanoflakes of an aminoacid-based chiral coordination polymer (CP), [Cu{sub 2}(tyr){sub 2}(bipy)]{sub n}, were synthesized successfully and showed good performance in the electrochemical sensing of H{sub 2}O{sub 2}. - Highlights: • Synthesis of nanoflakes of an aminoacid-based chiral CP. • Optical and electrochemical properties resulting respectively from ligands and Cu{sup II}. • Good performance in enzyme-free electrochemical sensing of H{sub 2}O{sub 2}.
Authors:
 [1] ;  [1] ;  [2]
  1. Jiangsu Key Laboratory of New Power Batteries, National-Local Joint Engineering Research Center for Biomedical Functional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023 (China)
  2. Analytical and Testing Center of Nanjing Normal University, Nanjing (China)
Publication Date:
OSTI Identifier:
22475549
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 223; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ABSORPTION SPECTROSCOPY; CHIRALITY; COPPER COMPOUNDS; COPPER IONS; ELECTROCHEMISTRY; ENZYMES; FLUORESCENCE SPECTROSCOPY; HYDROGEN PEROXIDE; LIGANDS; NANOPARTICLES; OPTICAL PROPERTIES; ORGANIC POLYMERS; SCANNING ELECTRON MICROSCOPY; SENSITIVITY; SENSORS; SURFACTANTS; SYNTHESIS; VOLTAMETRY; X-RAY DIFFRACTION