Open AccessStudy on the gas sensor at room temperature based on polypyrrole materials
Author(s) -
Thanh Tran,
Quoc Vuong Luyen,
Van Han Hoang,
Van Cuong Giap,
Thi Quynh Hoa Nguyen,
Van Dan Bui,
Thi Hien Hoang,
Van Tuan Chu
Publication year - 2022
Publication title -
tạp chí khoa học và công nghệ việt nam (b, online) (vietnam journal of science and technology - most)/tạp chí khoa học và công nghệ việt nam (điện tử)/tạp chí khoa học và công nghệ việt nam (b, print) (vietnam journal of science and technology - most)
Language(s) - English
Resource type - Journals
eISSN - 2615-9759
pISSN - 1859-4794
DOI - 10.31276/vjst.64(3).50-54
Subject(s) - polypyrrole , dodecylbenzene , materials science , sulfonic acid , fourier transform infrared spectroscopy , scanning electron microscope , chemical engineering , conductive polymer , conductivity , ultraviolet , spectroscopy , infrared spectroscopy , analytical chemistry (journal) , polymer chemistry , polymer , composite material , chemistry , optoelectronics , organic chemistry , sulfonate , polymerization , physics , sodium , quantum mechanics , engineering , metallurgy
This paper presents the results of synthesising polypyrrole (PPy) modified Dodecylbenzene sulfonic acid (DBSA) with nanostructures oriented to applications for NH3 gas sensors operating at room temperature. The outcomes of surface morphology and chemical composition structure analysis of PPy film were studied by field-emission scanning electron microscopy (FE-SEM), fourier-transform infrared spectroscopy (FT-IR), and ultraviolet-visible spectroscopy (UV-Vis). The products were obtained by electrochemical method with the nanostructured PPy film, the conductivity of the PPy film depends on the concentration of DBSA denaturant. The experimental results showed that these PPy films have a great potential application as a new sensitive layer for gas sensors.