Open AccessINVESTIGATION OF SENSITIVITY AND SELECTIVITY OF MWCNT–BASED SENSOR FOR AMMONIAC GAS DETECTION AT ROOM TEMPERATURE
Author(s) -
Le-Minh Nguyen,
Tu Nguyen,
Anh Tuan Ly,
Thanh Phuc Tran,
Pho Quoc Phan,
Lam Huu Nguyen
Publication year - 2012
Publication title -
khoa học công nghệ
Language(s) - English
Resource type - Journals
ISSN - 1859-0128
DOI - 10.32508/stdj.v15i2.1791
Subject(s) - carbon nanotube , selectivity , materials science , chemical vapor deposition , nanotechnology , molecule , sensitivity (control systems) , analytical chemistry (journal) , deposition (geology) , chemical engineering , chemistry , chromatography , catalysis , organic chemistry , electronic engineering , engineering , paleontology , sediment , biology
Gas sensors based on multi-walled carbon nanotube (MWCNT) for detecting gaseous molecules of ammoniac (NH3) were developed and investigated. MWCNT film was grown directly by chemical vapor deposition (CVD) method on Pt electrodes to fabricate sensor device. The CNT based – gas sensor is shown sensitively and selectively to NH3 gas at room temperature.