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靜電紡絲法制備多孔五氧化二釩納米管
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物理科學(xué)與工程學(xué)院,物理科學(xué)與工程學(xué)院,物理科學(xué)與工程學(xué)院,物理科學(xué)與工程學(xué)院,物理科學(xué)與工程學(xué)院,物理科學(xué)與工程學(xué)院

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國家自然科學(xué)基金項(xiàng)目（面上項(xiàng)目，重點(diǎn)項(xiàng)目，重大項(xiàng)目）


Preparation of porous vanadium pentoxide nanotubes by electrospinning
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School of Physics and Science Engineering,Tongji University,Shanghai,School of Physics and Science Engineering,Tongji University,Shanghai,School of Physics and Science Engineering,Tongji University,Shanghai,;China;Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology,Tongji University,Shanghai,;China,School of Physics and Science Engineering,Tongji University,Shanghai,;China;Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology,Tongji University,Shanghai,;China,School of Physics and Science Engineering,Tongji University,Shanghai,School of Physics and Science Engineering,Tongji University,Shanghai,;China;Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology,Tongji University,Shanghai,;China

Fund Project:

The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

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    摘要:

    靜電紡絲法制備多孔五氧化二釩納米纖維,在經(jīng)過后續(xù)的高溫處理得到多孔洞的五氧化二釩納米管結(jié)構(gòu)。本文以商用五氧化二釩粉末,苯甲醇和異丙醇為原料制備氧化釩溶膠,添加聚乙烯吡咯烷酮(PVP)以增加前驅(qū)體的粘性,并以此為前驅(qū)體通過靜電紡絲法制備超長五氧化二釩納米纖維。于是我們得到靜電紡絲法制備的五氧化二釩纖維,通過改變熱處理的時(shí)間來實(shí)現(xiàn)對(duì)纖維形貌的控制。我們所添加的PVP在整個(gè)溶液中的質(zhì)量分?jǐn)?shù)為10%。使用掃描電子顯微鏡(SEM)、投射電子顯微鏡(TEM)以及X射線衍射儀(XRD)來表征所制備的多孔五氧化二釩納米管的形貌和結(jié)晶度。由熱重分析儀(TGA)來測試靜電紡絲設(shè)備制備得到的五氧化二釩納米纖維的熱分解,并以此選擇高溫處理溫度。靜電紡絲得到的超長五氧化二釩納米纖維的直徑在400-700納米間,長度為2-10微米。經(jīng)過不同時(shí)間的高溫處理后,所獲得結(jié)構(gòu)為不同完整程度的多孔洞五氧化二釩納米管。

    Abstract:

    Porous vanadium oxide nanotubes (VNTs) are generated by electrospinning technique and following sintering treatment. In this paper, we choose commercial vanadium oxides and benzyl alcohol and Isopropanol as the raw materials to form low-cost inorganic vanadium sol solution followed the appropriate addition of poly(vinylpyrrolidone) (PVP) as electrospinning vanadium precursor[1]. Thus, we can prepare the one-dimensional (1D) VNTs, which mainly containing V2O5-sol and PVP, followed by varying the holding time of sintering. Crystal structure and the morphology of electrospun VNTs are analyzed by using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD). X-ray photoelectron spectroscopy (XPS) also displays carbon remained after PVP sintered. The electrospun VNTs are about 400 - 700 nm in diameter, and 2-10 μm long with various degrees of porous interconnected fibrous morphology which could be seen by SEM and TEM images. And the degrees of the fracture of the porous vanadium pentoxide nanotubes are various with different holding time at high temperature.

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劉銀丹,高國華,梁興,楊輝宇,吳廣明,沈軍.靜電紡絲法制備多孔五氧化二釩納米管[J].稀有金屬材料與工程,2018,47(S2):129~133.[Yindan Liu, Guohua Gao, Xing Liang, Huiyu Yang, Guangming Wu, Jun Shen. Preparation of porous vanadium pentoxide nanotubes by electrospinning[J]. Rare Metal Materials and Engineering,2018,47(S2):129~133.]
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  • 收稿日期:2017-12-05
  • 最后修改日期:2018-07-05
  • 錄用日期:2018-02-01
  • 在線發(fā)布日期: 2018-11-01
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