高纯度五氧化二钒纳米纤维布的优化制备研究

倪伟; 彭碧君

doi:10.7513/j.issn.1004-7638.2022.02.011

高纯度五氧化二钒纳米纤维布的优化制备研究

doi: 10.7513/j.issn.1004-7638.2022.02.011

倪伟,
彭碧君

1.
钒钛资源综合利用国家重点实验室, 四川攀枝花 617000
2.
攀钢集团研究院有限公司, 四川成都 610300

基金项目: 国家自然科学基金（51403193）资助项目。

详细信息

作者简介:
倪伟（1982—），男，河南安阳人，理学博士，主要从事能源和环境功能材料研发，E-mail: niwei@iccas.ac.cn

中图分类号: TF841.3,TS172
计量
- 文章访问数: 329
- HTML全文浏览量: 59
- PDF下载量: 31
- 被引次数: 0
出版历程
- 收稿日期: 2021-11-12
- 网络出版日期: 2022-05-11
- 刊出日期: 2022-04-28

Study on the optimized preparation of high-purity V₂O₅ nanowire nonwoven

Ni Wei,
Peng Bijun

1.
State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China
2.
Pangang Group Research Institute Co., Ltd., Chengdu 610300, Sichuan, China

摘要

摘要: 针对现有五氧化二钒纳米材料特别是纳米纤维布制备工艺复杂、成本高和效率低等问题，提供了一种高效制备五氧化二钒纳米纤维布的方法：水热反应一步法，并初步研究了相关机理。经产品品质和经济性综合考量，优化的水热反应制备条件如下：温度为180～200 ℃，时间为18～24 h，体系中盐酸质量浓度为1%～3%，钒源偏钒酸铵质量浓度为1%～3%。所得五氧化二钒纳米纤维布厚度在0.1～1 mm，纤维直径为50～100 nm。具有良好的柔韧性、结构均一性，且褶皱程度可调。
- 五氧化二钒 /
- 纳米纤维布 /
- 水热法 /
- 柔韧性 /
- 生长机理
Abstract: Aiming to solve the preparation problems of complex, high cost and low efficiency of the existing vanadium pentoxide (V₂O₅) nanomaterials, especially their nanowire nonwovens, herein a one-step hydrothermal method for efficient preparation of V₂O₅ nanowire nonwoven was provided and the relevant mechanism was preliminarily studied afterwards. In comprehensive consideration of product quality and economy, the optimized hydrothermal reaction conditions are 180～200 ℃, 18～24 h, the concentration of hydrochloric acid in the system is 1%～3%, and the concentration of ammonium metavanadate (AMV) is 1%～3%. The optimized nanowire cloth has a thickness of 0.1～1 mm with inner wire diameter of 50～100 nm. Through the optimization of preparation conditions, the resulting V₂O₅ nanowire nonwoven shows good flexibility, structural uniformity and adjustable wrinkles.
- vanadium pentoxide (V₂O₅) /
- nanowire nonwoven /
- hydrothermal process /
- flexibility /
- growth mechanism

HTML全文

图 1 五氧化二钒纳米纤维无纺布的EDS取点和元素分析

Figure 1. EDS elemental analysis of the annealed V₂O₅ nanowire nonwoven

下载: 全尺寸图片幻灯片

图 2 原始纤维无纺布及其高温退火后的XRD图谱

Figure 2. XRD patterns of original and annealed V₂O₅ nanowire nonwovens

下载: 全尺寸图片幻灯片

图 3 原始五氧化二钒纳米纤维无纺布的宏观形貌

Figure 3. The digital photo of original V₂O₅ nanowire nonwoven

下载: 全尺寸图片幻灯片

图 4 退火后五氧化二钒纳米纤维无纺布的微观形貌（不同放大倍数下）

Figure 4. SEM images of annealed V₂O₅ nanowire nonwoven with different magnifications

下载: 全尺寸图片幻灯片

图 5 五氧化二钒纳米纤维布的水热形成过程（200 ℃）

Figure 5. The formation process of V₂O₅ nanowire nonwoven with increased time (1, 6 h and 24 h) at 200 ℃

下载: 全尺寸图片幻灯片

参考文献(11)

[1]	Wu You, Chen Donghui, Liu Wuhan, et al. Global vanadium industry development report 2020[J]. Iron Steel Vanadium Titanium, 2021,42(5):1−9. (吴优, 陈东辉, 刘武汉, 等. 2020年全球钒工业发展报告[J]. 钢铁钒钛, 2021,42(5):1−9.
[2]	魏涛, 尹宝熠, 王闫锋, 等. 一种五氧化二钒超长纳米线材料的制备方法及应用, 中国: 201910038538.4[P]. 2019-01-16. Wei Tao, Yin Baoyi, Wang Yanfeng, et al. A preparation method and application of vanadium pentoxide ultralong nanowire material, China: 201910038538.4[P]. 2019-01-16.
[3]	李志杰, 祖小涛. 一种五氧化二钒纳米纤维的制备方法, 中国: 201210352298.3[P]. 2012-09-20. Li Zhijie, Zu Xiaotao. A preparation method of vanadium pentoxide nanofiber, China: 201210352298.3[P]. 2012-09-20.
[4]	Wang Y, Zhang H J, Siah K W, et al. One pot synthesis of self-assembled V₂O₅ nanobelt membrane via capsule-like hydrated precursor as improved cathode for Li-ion battery[J]. J Mater Chem, 2011,21(28):10336−10341.
[5]	秦玉香, 范光涛, 化得燕, 等. 一维五氧化二钒纳米结构的制备方法, 中国: 201310276103.6[P]. 2013-07-02. Qin Yuxiang, Fan Guangtao, Hua Deyan, et al. Preparation method of one-dimensional vanadium pentoxide nanostructures, China: 201310276103.6[P]. 2013-07-02.
[6]	Xiong C R, Aliev A E, Gnade B, et al. Fabrication of silver vanadium oxide and V₂O₅ nanowires for electrochromics[J]. ACS Nano, 2008,2(2):293−301.
[7]	Ding N, Liu S, Feng X, et al. Hydrothermal growth and characterization of nanostructured vanadium-based oxides[J]. Cryst. Growth Des., 2009,9(4):1723−1728.
[8]	麦立强, 赵露滋, 冯威, 等. 具有三维联通纳米网络结构的五氧化二钒及其制备方法和应用, 中国: 201410396489.9[P]. 2014-08-12. Mai Liqiang, Zhao Luzi, Feng Wei, et al. Vanadium pentoxide with three-dimensionally connected nano framework structure and its preparation method and application, China: 201410396489.9[P]. 2014-08-12.
[9]	芮先宏, 汤育欣. 一种五氧化二钒纳米带及其常温合成方法与应用, 中国: 201410485637.4[P]. 2014-09-22. Rui Xianhong, Tang Yuxin. A vanadium pentoxide nanobelt and its room-temperature synthesis method and application, China: 201410485637.4[P]. 2014-09-22
[10]	高标, 霍开富, 潘志国, 等. 一种超长二氧化钒纳米线薄膜及其制备方法, 中国: 201410436433.1[P]. 2014-08-29. Gao Biao, Huo Kaifu, Pan Zhiguo, et al. An ultralong vanadium dioxide nanowire film and its preparation method, China: 201410436433.1[P]. 2014-08-29.
[11]	Liu Bo. Desilication from alkali leaching solution containing vanadium and preparation of high purity vanadium pentoxide[J]. Iron Steel Vanadium Titanium, 2019,40(5):8−15, 36. (刘波. 碱性含钒浸出液除硅研究及高纯五氧化二钒制备[J]. 钢铁钒钛, 2019,40(5):8−15, 36.