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| Electrochemical Performance of Titanium Nitride Nanotubes as Negative Electrode in a Static Vanadium Battery Towards V(Ⅱ)/V(Ⅲ) Redox Couple |
| Author Name | Affiliation | E-mail | | ZHAO Feng-Ming | State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China | | | WEN Gang | State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China | | | KONG Li-Yao | State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China | | | CHU You-Qun | State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China | | | MA Chun-An | State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China | science@zjut.edu.cn |
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| Abstract: In this study, titanium nitride nanotubes (TiN NTs) film is directly prepared on a Ti substrate through anodic oxidation process and subsequent nitridation in ammonia atmosphere. The prepared TiN NTs film is proposed as a novel catalyst towards V(Ⅱ)/V(Ⅲ) redox couple for the negative electrode in a static vanadium redox battery. Scanning electron microscopy (SEM) results confirm that TiN NTs retain its parental morphology of TiO2 NTs. X-ray diffraction (XRD) pattern show that TiO2 is transformed into TiN and Ti2N. X-ray photoelectron spectroscopy (XPS) spectra reveal that the surface of TiN NTs is composed of Ti-N-O, Ti-N, Ti-O chemical states. Electrochemical properties of TiN NTs were characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The higher peak current values and more symmetrical peak shape for V(Ⅱ)/V(Ⅲ) redox couple suggest the excellent electrochemical activity and reversibility of TiN NTs. EIS analysis revealed that the charge and mass transfer processes were accelerated at the TiN NTs electrode interface, which could be ascribed to the large electrochemical real surface area and fast transfer channel. |
| Keywords: titanium nitride nanotube vanadium redox battery V(Ⅱ)/V(Ⅲ) electrochemical performance |
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| ZHAO Feng-Ming,WEN Gang,KONG Li-Yao,CHU You-Qun,MA Chun-An.Electrochemical Performance of Titanium Nitride Nanotubes as Negative Electrode in a Static Vanadium Battery Towards V(Ⅱ)/V(Ⅲ) Redox Couple[J].Chinese Journal of Inorganic Chemistry,2017,33(3):501-508. |
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