caa a22 4500 445880333 CHVBK 20180317145540.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s00604-011-0664-6 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0664-6 Arrays of nanofibers composed of a TiC core and a carbon coating for sensitive electrochemical detection of hydrazine [Elektronische Daten] [Wenrui Zhang, Kaifu Huo, Yulong Jiang, Liangsheng Hu, Rongsheng Chen, Paul Chu] Arrays made from quasi-aligned nanofibers consisting of a TiC/C composite were produced directly on a titanium alloy substrate by a thermochemical process. Their morphology, structure and composition were characterized by electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The arrays were directly utilized as an electrode without further treatment and display high catalytic activity in terms of hydrazine oxidation. The low overpotential decreases gradually when increasing pH values from 5 to 10. The detection range is linear from 0.1 to 1,635μM concentrations, and the detection limit is as low as 0.026μM (S/N = 3). The selectivity of the electrode and its general performance and stability are very good. The improved electrochemical properties of the new electrode are attributed to the synergic effect of the highly conducting TiC nanowire core and an abundant amount of edge-plane-like defects on the carbon shells. Figure Quasi-alinged core-shell TiC/C nanofiber arrays were produced by a simple thermochemical method. The nanofiber arrays display electrocatalytic activity towards oxidation of hydrazine with a wide linear range and a very low detection limit of 0.026μM (S/N = 3). Springer-Verlag, 2011 TiC/C nanofiber arrays nationallicence Hydrazine nationallicence Amperometric sensor nationallicence Eletroanalysis nationallicence Zhang Wenrui School of Materials and Metallurgy, Wuhan University of Science and Technology, 430081, Wuhan, China aut Huo Kaifu School of Materials and Metallurgy, Wuhan University of Science and Technology, 430081, Wuhan, China aut Jiang Yulong ASIC and System State Key Laboratory, Department of Microelectronics, Fudan University, 200433, Shanghai, China aut Hu Liangsheng School of Materials and Metallurgy, Wuhan University of Science and Technology, 430081, Wuhan, China aut Chen Rongsheng School of Materials and Metallurgy, Wuhan University of Science and Technology, 430081, Wuhan, China aut Chu Paul Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China aut Microchimica Acta Springer Vienna 175/1-2(2011-10-01), 137-143 0026-3672 175:1-2<137 2011 175 604 https://doi.org/10.1007/s00604-011-0664-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0664-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Wenrui School of Materials and Metallurgy, Wuhan University of Science and Technology, 430081, Wuhan, China aut NATIONALLICENCE 700 1- Huo Kaifu School of Materials and Metallurgy, Wuhan University of Science and Technology, 430081, Wuhan, China aut NATIONALLICENCE 700 1- Jiang Yulong ASIC and System State Key Laboratory, Department of Microelectronics, Fudan University, 200433, Shanghai, China aut NATIONALLICENCE 700 1- Hu Liangsheng School of Materials and Metallurgy, Wuhan University of Science and Technology, 430081, Wuhan, China aut NATIONALLICENCE 700 1- Chen Rongsheng School of Materials and Metallurgy, Wuhan University of Science and Technology, 430081, Wuhan, China aut NATIONALLICENCE 700 1- Chu Paul Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 175/1-2(2011-10-01), 137-143 0026-3672 175:1-2<137 2011 175 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer