title: Fabrication of graphene/titanium carbide nanorod arrays for chemical sensor application.
abstract: Vertically stacked graphene nanosheet/titanium carbide nanorod array/titanium (graphene/TiC nanorod array) wires were fabricated using a direct current arc plasma jet chemical vapor deposition (DC arc plasma jet CVD) method. The graphene/TiC nanorod arrays were characterized by scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction spectroscopy. The TiO2nanotube array was reduced to the TiC nanorod array, and using those TiC nanorods as nucleation sites, the vertical graphene layer was formed on the TiC nanorod surface. The multi-target response mechanisms of the graphene/TiC nanorod array were investigated for ascorbic acid (AA), dopamine (DA), uric acid (UA), and hydrochlorothiazide (HCTZ). The vertically stacked graphene sheets facilitated the electron transfer and reactant transport with a unique porous surface, high surface area, and high electron transport network of CVD graphene sheets. The TiC nanorod array facilitated the electron transfer and firmly held the graphene layer. Thus, the graphene/TiC nanorod arrays could simultaneously respond to trace biomarkers and antihypertensive drugs.
authors.affiliation: Tianjin Key Laboratory of Film Electronic and Communicate Devices, School of Electronics Information Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
authors.forename: Chong
authors.initials: C
authors.lastname: Fu
authors.affiliation: Tianjin Key Laboratory of Film Electronic and Communicate Devices, School of Electronics Information Engineering, Tianjin University of Technology, Tianjin 300384, PR China. Electronic address: limingji@163.com.
authors.forename: Mingji
authors.initials: M
authors.lastname: Li
authors.affiliation: Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China. Electronic address: hongjili@yeah.net.
authors.forename: Hongji
authors.initials: H
authors.lastname: Li
authors.affiliation: Tianjin Key Laboratory of Film Electronic and Communicate Devices, School of Electronics Information Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
authors.forename: Cuiping
authors.initials: C
authors.lastname: Li
authors.affiliation: Tianjin Key Laboratory of Film Electronic and Communicate Devices, School of Electronics Information Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
authors.forename: Changqing
authors.initials: C
authors.lastname: Qu
authors.affiliation: Tianjin Key Laboratory of Film Electronic and Communicate Devices, School of Electronics Information Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
authors.forename: Baohe
authors.initials: B
authors.lastname: Yang
mesh_terms: D001205:Ascorbic Acid / Q000032:analysis; D004298:Dopamine / Q000032:analysis; D055664:Electrochemical Techniques / Q000295:instrumentation; D006108:Graphite / Q000737:chemistry*; D006852:Hydrochlorothiazide / Q000032:analysis; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure; D009930:Organic Chemicals / Q000032:analysis*; D056951:Photoelectron Spectroscopy; D016062:Porosity; D013059:Spectrum Analysis, Raman; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*; D014527:Uric Acid / Q000032:analysis; D014961:X-Ray Diffraction
chemical_list: D009930:Organic Chemicals; D006852:Hydrochlorothiazide; C096521:titanium carbide; D014527:Uric Acid; D006108:Graphite; D014025:Titanium; D001205:Ascorbic Acid; D004298:Dopamine
keywords: Chemical sensor; DC arc plasma jet CVD; Graphene; Response mechanisms; TiC nanorod array