TY  - JOUR
T1  - The Effect of Chemical Treatment of Reduced Graphene
Oxide on NO<sub>2</sub> Gas Sensing
AU - N. Oleiwi, Mustafa AU - Al-Saady, Fouad A. AU - Ali Al-Sammarraie, Abdulkareem M. 
JO  - Journal of Engineering and Applied Sciences
VL  - 13
IS  - 18
SP  - 7721
EP  - 7728
PY  - 2018
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2018.7721.7728
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2018.7721.7728
KW  - RGO
KW  -NO gas sensor
KW  -doping
KW  -graphene
KW  -SEM
KW  -AFM
KW  -sensitivity
KW  -effect
AB  - Graphene a two dimensional nanomaterial with extremely high surface area and highly sensitive to surface molecules adsorbates, it can be modified effectively by different chemical treatment processes. In this research, graphite flakes were converted to graphene oxide using modified Hummers procedure and then the product has been reduced by hydrazine to graphenenanosheets, this Reduced Graphene Oxide (RGO) serves as starting materials for the next chemical treatments. The effect of chemical treatment of RGO with nitric acid, sulfuric acid, boric acid and sodium hydroxide separately were studied from view of doping degree and morphological changes using SEM, AFM, EDS and FTIR. Graphite staring material, RGO and all chemical treated RGO products were tested for NO<sub>2</sub> gas sensing capability. RGO treated with nitric acid show the best sensitivity towards NO<sub>2</sub> gas at 25&deg;C while graphite sample has the worst sensitivity towards NO<sub>2</sub> gas.
ER  -