کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6587353 456412 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effective modified electrode of poly (1-naphthylamine) nanoglobules for ultra-high sensitive ethanol chemical sensor
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Effective modified electrode of poly (1-naphthylamine) nanoglobules for ultra-high sensitive ethanol chemical sensor
چکیده انگلیسی
Poly (1-naphthylamine, PNA) nanoglobules, an analog of polyaniline (PANI), were synthesized by facile chemical polymerization of 1-naphthylamine monomer in the presence of HClO4 and cupric chloride (CuCl2). The as-synthesized PNA nanoglobules were characterized in terms of their morphological, compositional, structural, optical and sensing properties. The morphological observations revealed that the synthesized PNA were grown in high density and possessed nanoglobular shape with the average diameter of ∼300-400 nm. The FTIR and Raman scattering studies deduced the formation of PNA upon the polymerization of 1-naphthylamine monomer. Electrochemical studies suggested the rapid sensing response through high electrocatalytic activity over the surface of PNA nanoglobules modified electrode. The synthesized PNA nanoglobules were efficiently applied as an electron mediator for the fabrication of high-sensitive chemical sensor towards the detection of ethanol in aqueous medium. The fabricated ethanol chemical sensor based on PNA nanoglobules exhibited a high and reproducible sensitivity of ∼1.66 μA mM−1 cm−2 with a response time 10 s. The obtained linear dynamic range (LDR) for the fabricated PNA nanoglobules based chemical sensor was from 0.78 mM to 50 mM with the correlation efficient of R = ∼0.965.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 229, 1 August 2013, Pages 267-275
نویسندگان
, , , ,