| Title: | A Room-Temperature Operation Formaldehyde Sensing Material Printed Using Blends of Reduced Graphene Oxide and Poly(methyl methacrylate) |
| Author(s): | Chuang WY; Yang SY; Wu WJ; Lin CT; |
| Address: | "Graduate Institute of Electronics Engineering, National Taiwan University, Taipei 10617, Taiwan. d99943047@ntu.edu.tw. Department of Engineering Science and Ocean Engineering, National Taiwan University, Taipei 10617, Taiwan. onion781227@gmail.com. Department of Engineering Science and Ocean Engineering, National Taiwan University, Taipei 10617, Taiwan. wjwu@ntu.edu.tw. Graduate Institute of Electronics Engineering, National Taiwan University, Taipei 10617, Taiwan. timlin@ntu.edu.tw" |
| ISSN/ISBN: | 1424-8220 (Electronic) 1424-8220 (Linking) |
| Abstract: | "This work demonstrates a printable blending material, i.e., reduced graphene oxide (RGO) mixed with poly(methyl methacrylate) (PMMA), for formaldehyde sensing. Based on experimental results, 2% RGO/10% PMMA is an optimal ratio for formaldehyde detection, which produced a 30.5% resistance variation in response to 1000 ppm formaldehyde and high selectivity compared to different volatile organic compounds (VOCs), humidity, CO, and NO. The demonstrated detection limit is 100 ppm with 1.51% resistance variation. Characterization of the developed formaldehyde sensing material was performed by Fourier-transform infrared (FTIR) spectrometry, scanning electron microscopy (SEM), and Raman spectroscopy. Based on Raman spectroscopy, the basic sensing mechanism is the band distortion of RGO due to blending with PMMA and the adsorption of formaldehyde. This work establishes insights into the formaldehyde sensing mechanism and explores a potential printable sensing material for diverse applications" |
| Keywords: | Pmma Rgo formaldehyde gas sensor; |
| Notes: | "PubMed-not-MEDLINEChuang, Wen-Yu Yang, Sung-Yuan Wu, Wen-Jong Lin, Chih-Ting eng Switzerland 2015/11/19 Sensors (Basel). 2015 Nov 13; 15(11):28842-53. doi: 10.3390/s151128842" |
