Development of a Chitosan/Nickel Phthalocyanine Composite Based Conductometric Micro‐sensor for Methanol Detection. Issue 8 (15th March 2022)

• Record Type: Journal Article
• Authors: Musa, Ibrahim; Raffin, Guy; Hangouet, Marie; Martin, Marie; Alcacer, Albert; Zine, Nadia; Bellagambi, Francesca; Jaffrezic‐Renault, Nicole; Errachid, Abdelhamid
• Is Part Of: Electroanalysis. Volume 34:Issue 8(2022)
• Page Start: 1338
• Page End: 1347
• Publication Date: 2022-03-15
• Subjects: conductivity -- methanol -- sensor -- chitosan film -- nickel phthalocyanine; Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.202100707
• Languages: English
• ISSNs: 1040-0397

Abstract

Abstract: Thin‐film composite of chitosan/nickel phthalocyanine (NiPc) was electrochemically deposited on the fingers of interdigitated gold electrodes, applying chronoamperometric polymerization technique. The presence of crystallized NiPc in the chitosan was confirmed by EDX and FTIR analysis. Acetone, ethanol, and methanol gas‐sensing properties of the films prepared at optimum conditions were studied at atmospheric temperature, through differential measurements at an optimized frequency of 10 kHz, using a lock‐in amplifier. The conductometric sensor presents the highest sensitivity of 60.2 μS.cm −1 (v/v) for methanol and 700 ppm as the limit of detection. For validation, the methanol content of a commercial rubbing alcohol was determined. Abstract :