title: Ethanol chemiresistor with enhanced discriminative ability from acetone based on Sr-doped SnO2 nanofibers.
abstract: We demonstrated a new metal oxides based chemiresistor (MOC), which exhibits fast response/recovery behavior, large sensitivity, and good selectivity to ethanol, enabled by Sr-doped SnO2 nanofibers via simple electrospinning and followed by calcination. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectra (XPS) were carefully used to characterize their morphology, structure, and composition. The ethanol sensing performances based on Sr-doped SnO2 nanofibers were investigated. Comparing with the pristine SnO2 nanofibers, enhanced ethanol sensing performances (more rapid response/recovery behavior and larger response values) have been achieved owing to the basic SnO2 surface caused by Sr-doping, whereas the acetone sensing performances have been weakened. Thus, good discriminative ability to ethanol from acetone has been realized. Additionally, Sr-doped SnO2 nanofibers also exhibit good selectivity.
authors.affiliation: Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, PR China.
authors.forename: Ziqiao
authors.initials: Z
authors.lastname: Jiang
authors.affiliation: Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, PR China; Department of Catalysis Science and Engineering, School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin 150001, PR China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Jiang
authors.affiliation: Australian Future Fibres Research & Innovation Centre, Institute for Frontier Materials, Deakin University, Geelong, Victoria 3217, Australia.
authors.forename: Jinfeng
authors.initials: J
authors.lastname: Wang
authors.affiliation: Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, PR China.
authors.forename: Zhaojie
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, PR China.
authors.forename: Xiuru
authors.initials: X
authors.lastname: Xu
authors.affiliation: Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, PR China.
authors.forename: Zongxin
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, PR China.
authors.forename: Rui
authors.initials: R
authors.lastname: Zhao
authors.affiliation: Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, PR China; Australian Future Fibres Research & Innovation Centre, Institute for Frontier Materials, Deakin University, Geelong, Victoria 3217, Australia. Electronic address: zhenyu_li@jlu.edu.cn.
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: Li
authors.affiliation: Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, PR China. Electronic address: cwang@jlu.edu.cn.
authors.forename: Ce
authors.initials: C
authors.lastname: Wang
mesh_terms: D000096:Acetone / Q000737:chemistry*; D000431:Ethanol / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D057139:Nanofibers / Q000737:chemistry*; D056951:Photoelectron Spectroscopy; D013324:Strontium / Q000737:chemistry*; D017971:Tin Compounds / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D017971:Tin Compounds; D000096:Acetone; D000431:Ethanol; C045358:stannic oxide; D013324:Strontium
keywords: Electrospinning; Ethanol sensor; Rapid; Selectivity; Sensitive; Sr-functionalized SnO(2)