Graphene oxide scrolls on hydrophobic substrates fabricated by molecular combing and their application in gas sensing.
Well-aligned graphene oxide (GO) scrolls are prepared through the controlled folding/scrolling of single-layer GO sheets using molecular combing on hydrophobic substrates, such as aged gold substrate, polydimethylsiloxane film, poly(L-lactic acid) film, and octadecyltrimethoxysilane-modified silicon dioxide. As a proof of concept, the gas sensor fabricated with a single reduced GO scroll is used to detect NO(2)  gas with a concentration as low as 0.4 ppm.
School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapor.
Hai
H
Li
Jumiati
J
Wu
Xiaoying
X
Qi
Qiyuan
Q
He
Cipto
C
Liusman
Gang
G
Lu
Xiaozhu
X
Zhou
Hua
H
Zhang
D005740:Gases / Q000032:analysis* / Q000737:chemistry; D006108:Graphite / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D009585:Nitrogen Dioxide / Q000032:analysis / Q000737:chemistry; D010087:Oxides / Q000737:chemistry*
D005740:Gases; D010087:Oxides; D006108:Graphite; D009585:Nitrogen Dioxide