Preparation and characterization of TiO2 nanotube arrays coated with amorphous carbon

doi:10.12442/j.issn.1002-185X.20191074

Home > Archive>Volume 49, Issue 12, 2020 >4303-4310. DOI:10.12442/j.issn.1002-185X.20191074

Preparation and characterization of TiO2 nanotube arrays coated with amorphous carbon
DOI:
                        10.12442/j.issn.1002-185X.20191074
                    
Author:
                        Liu Jiameng1Liu Jiameng
College of Materials Science and Engineering,Taiyuan University of Technology, Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan Shanxi
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Guo Fei1Guo Fei
College of Materials Science and Engineering,Taiyuan University of Technology, Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan Shanxi
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Zhang Wanggang1Zhang Wanggang
College of Materials Science and Engineering,Taiyuan University of Technology, Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan Shanxi
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Wang Hongxia2Wang Hongxia
College of Materials Science and Engineering,Taiyuan University of Technology, Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan Shanxi
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Affiliation:College of Materials Science and Engineering,Taiyuan University of Technology, Key Laboratory of Interface Science and Engineering in Advanced Materials,Ministry of Education,Taiyuan Shanxi
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Fund Project:Funded by the Natural Science Foundation of Shanxi Province(201801D221140, 201801D121099),Talent Project of Shanxi Province(201705D2011007),Shanxi Scientific Instrument and Equipment Sharing Service Platform Project(201805D141005)

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Abstract:

In this paper, an amorphous carbon-coated mixed-crystal TiO2 nanoring array (C@TNTs) with good electrochemical properties was prepared by combining the hydrothermal carbonization method and anodizing method. Scanning electron microscopy (SEM), Raman spectroscopy (Raman), X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and electrochemical methods were used to characterize and analyze respectively the unmodified TNTs sample and the C@TNTs samples that obtained at annealing temperatures of 550 °C, 650 °C and 750 °C. The results show that the hydrothermal carbonization method can uniformly coat an amorphous carbon layer with a thickness of about 3.4 to 6.5 nm on the TiO2 nanotube array, but it will not affect its morphology and structure. The specific discharge capacities of C@TNTs-550, C@TNTs-650 and C@TNTs-750 are 2.83 mF·cm-2, 6.52 mF·cm-2and 1.48 mF·cm-2, which are 27, 62 and 14 times higher than the unmodified TNTs, respectively. What’s more, the introduction of a certain rutile phase in TiO2 nanotube array is conducive to the improve its electrochemical performance.

Key words:Hydrothermal carbonization, amorphous carbon, anodic oxidation method, TiO2 nanotube array; electrochemical performance

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[Liu Jiameng, Guo Fei, Zhang Wanggang, Wang Hongxia. Preparation and characterization of TiO2 nanotube arrays coated with amorphous carbon[J]. Rare Metal Materials and Engineering,2020,49(12):4303~4310.]
DOI：10.12442/j. issn.1002-185X.20191074

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Received:December 19,2019
Revised:February 15,2020
Adopted:February 21,2020
Online: January 13,2021
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