title: Reduced Graphene Oxide/Au Nanocomposite for NO₂ Sensing at Low Operating Temperature.
abstract: A reduced grapheme oxide (rGO)/Au hybrid nanocomposite has been synthesized by hydrothermal treatment using graphite and HAuCl₄ as the precursors. Characterization, including X-ray diffraction (XRD), Raman spectra, X-ray photoelecton spectroscopy (XPS) and transmission electron microscopy (TEM), indicates the formation of rGO/Au. A gas sensor fabricated with rGO/Au nanocomposite was applied for NO₂ detection at 50 °C. Compared with pure rGO, rGO/Au nanocomposite exhibits higher sensitivity, a more rapid response-recovery process and excellent reproducibility.
authors.affiliation: Shenzhen Key Laboratory of Laser Engineering, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China. haozhang13@sina.com.|Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China. haozhang13@sina.com.
authors.forename: Hao
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Shenzhen Key Laboratory of Sensor Technology, College of Physics Science and Technology, Shenzhen University, Shenzhen 518060, China. onlyforbear@126.com.
authors.forename: Qun
authors.initials: Q
authors.lastname: Li
authors.affiliation: Shenzhen Key Laboratory of Sensor Technology, College of Physics Science and Technology, Shenzhen University, Shenzhen 518060, China. kingofdk@sina.com.
authors.forename: Jinyu
authors.initials: J
authors.lastname: Huang
authors.affiliation: Shenzhen Key Laboratory of Sensor Technology, College of Physics Science and Technology, Shenzhen University, Shenzhen 518060, China. duyu@szu.edu.cn.
authors.forename: Yu
authors.initials: Y
authors.lastname: Du
authors.affiliation: Shenzhen Key Laboratory of Laser Engineering, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China. scruan@szu.edu.cn.
authors.forename: Shuang Chen
authors.initials: SC
authors.lastname: Ruan
keywords: NO2 sensing; graphene; low operating temperature; nanocomposite