title: Sn powder as reducing agents and SnO2 precursors for the synthesis of SnO2-reduced graphene oxide hybrid nanoparticles.
abstract: A facile approach to prepare SnO2/rGO (reduced graphene oxide) hybrid nanoparticles by a direct redox reaction between graphene oxide (GO) and tin powder was developed. Since no acid was used, it is an environmentally friendly green method. The SnO2/rGO hybrid nanoparticles were characterized by ultraviolet-visible spectroscopy, Raman spectroscopy, thermogravimetric analysis, X-ray diffraction analysis, and X-ray photoelectron spectroscopy. The microstructure of the SnO2/rGO was observed with scanning electron microscopy and transmission electron microscopy. The tin powder efficiently reduced GO to rGO, and the Sn was transformed to SnO2 nanoparticles (∼45 nm) that were evenly distributed on the rGO sheets. The SnO2/rGO hybrid nanoparticles were then coated on an interdigital electrode to fabricate a humidity sensor, which have an especially good linear impedance response from 11% to 85% relative humidity.
authors: School of Science, ‡School of Chemical Engineering, and §Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University , Tianjin 300072, People's Republic of China.
authors: Mingxi
authors: M
authors: Chen
authors: Congcong
authors: C
authors: Zhang
authors: Lingzhi
authors: L
authors: Li
authors: Yu
authors: Y
authors: Liu
authors: Xichuan
authors: X
authors: Li
authors: Xiaoyang
authors: X
authors: Xu
authors: Fengling
authors: F
authors: Xia
authors: Wei
authors: W
authors: Wang
authors: Jianping
authors: J
authors: Gao
mesh_terms: D055664:Electrochemical Techniques; D004566:Electrodes; D006108:Graphite / Q000737:chemistry*; D055772:Green Chemistry Technology; D053758:Nanoparticles / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry; D019163:Reducing Agents / Q000737:chemistry*; D013696:Temperature; D017971:Tin Compounds / Q000737:chemistry*; D014867:Water / Q000032:analysis
chemical_list: D010087:Oxides; D019163:Reducing Agents; D017971:Tin Compounds; D014867:Water; D006108:Graphite; C045358:stannic oxide