Construction of polyaniline/molybdenum sulfide nanocomposite: characterization and its electrocatalytic performance on nitrite

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• 作者：Ya Zhang ; Peng Chen ; Fangfang Wen ; Chen Huang ; Honggui Wang
• 刊名：Ionics
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：22
• 期：7
• 页码：1095-1102
• 全文大小：1,164 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Electrochemistry
  Materials Science
  Physical Chemistry
  Condensed Matter
  Renewable Energy Sources
  Electrical Power Generation and Transmission
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1862-0760
• 卷排序：22

文摘

A polyaniline/molybdenum sulfide (PANI-MoS₂) nanocomposite was synthesized via a hydrothermal method and in situ polymerization, respectively. Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) results indicated that the PANI and MoS₂ had been successfully composited. Cyclic voltammetry (CV) result showed that the PANI-0.1 g MoS₂-modified glassy carbon electrode (GCE) exhibited excellent electrochemical activity in a 0.1 M phosphate-buffered saline (PBS) solution compared to the MoS₂, PANI, and other PANI-MoS₂ composite-modified GCEs. CV result also confirmed that nitrite could be oxidized by the PANI-0.1 g MoS₂ in a pH 5.0 PBS solution. The amperometric response result indicated that the PANI-0.1 g MoS₂-modified GCE could be used to determine a nitrite concentration in a wide linear range of 4.0 and 4834 μM with a detection limit of 1.5 μM. The anti-interference property and real sample analysis was also proposed.KeywordsPolyanilineMoS₂ElectrocatalysisNitriteSensor