[1]吕维忠,周俏婷,等.B-Mg共掺杂纳米VO2的制备及其热致变色特性[J].深圳大学学报理工版,2022,39(4):440-446.[doi:10.3724/SP.J.1249.2022.04440]
 LV Weizhong,ZHOU Qiaoting,ZHOU Tianzi,et al.Preparation and thermochromic properties of B-Mg co-doped nano-VO2[J].Journal of Shenzhen University Science and Engineering,2022,39(4):440-446.[doi:10.3724/SP.J.1249.2022.04440]
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B-Mg共掺杂纳米VO2的制备及其热致变色特性()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第39卷
期数:
2022年第4期
页码:
440-446
栏目:
化学与化工
出版日期:
2022-07-12

文章信息/Info

Title:
Preparation and thermochromic properties of B-Mg co-doped nano-VO2
文章编号:
202204011
作者:
吕维忠1 周俏婷1 2 周天滋1 黄春波1 厉良普1 华悦1 周少华1
1)深圳大学化学与环境工程学院,广东深圳 518071
2)广州质量监督检测研究院,广东广州 511400
Author(s):
LV Weizhong1 ZHOU Qiaoting1 2 ZHOU Tianzi1 HUANG Chunbo1 LI Liangpu1 HUA Yue1 and ZHOU Shaohua1
1) College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518071, Guangdong Province, P. R. China
2) Guangzhou Institute of Quality Supervision and Inspection, Guangzhou 511400, Guangdong Province, P. R. China
关键词:
智能材料二氧化钒(VO2)溶胶-凝胶辅助水热法B-Mg共掺杂热致变色特性相变温度
Keywords:
smart materials vanadium dioxide (VO2) sol-gel-assisted hydrothermal method B-Mg co-doping thermochromic properties phase transition temperature
分类号:
TQ630
DOI:
10.3724/SP.J.1249.2022.04440
文献标志码:
A
摘要:
为降低二氧化钒(VO2)材料的相变温度并提高VO2材料的光学特性,采用溶胶-凝胶辅助水热法,控制硼(B)的掺杂原子数分数为6.0%,通过后续的高温退火处理制备硼-镁(B-Mg)共掺杂的纳米VO2粉体,然后将粉体制备成薄膜.通过对B-Mg共掺纳米VO2粉体微结构进行表征,探究Mg的原子数分数对复合材料相变温度和光学特性的影响,获得满足应用标准的B-Mg共掺杂纳米VO2材料.结果表明,复合材料中掺杂的B元素和Mg元素分别以B3+和Mg2+形式存在于VO2结构中,当Mg的原子数分数为1.8% 时,复合材料表现出相对优秀的热致变色特性,且具有最低的相变温度(tc = 30.8 ℃),其太阳光调制幅度(ΔT_sol = 11.8%)能维持在10%以上,平均可见光透过率(T △_lum = 69.7%)比未掺杂的VO2薄膜高12.1%,满足热致变色智能窗户的要求.研究结果为制备适用于热致变色智能窗户领域的VO2材料提供了理论依据.
Abstract:
In order to reduce the phase transition temperature of vanadium dioxide (VO2) materials and improve the optical properties of VO2 materials, the boron-magnesium (B-Mg) co-doped vanadium dioxide (VO2) powders were prepared through a sol-gel-assisted hydrothermal method in combination with the subsequent high-temperature annealing. The obtained powder was further prepared into a thin film. X-ray diffraction (XRD), X-ray electron spectroscopy (XPS), field emission scanning electron microscope (FESEM), differential scanning calorimeter (DSC), ultraviolet-visible-near-infrared spectrophotometer (UV-vis-NIR) were used to explore the microstructure of the material and effects of the doping concentrations of Mg on the phase transition temperature tc and the optical properties of VO2 materials. The B-Mg co-doped nano-VO2 material that satisfies various application standards was obtained. The results show that the doped elements of B and Mg exist in the VO2 structure as the form of B3+ and Mg2+. When the atomic percentages of B and Mg are 6.0% and 1.8%, the material shows a relatively excellent thermochromic properties, with the lowest phase transition temperature tc = 30.8 ℃. The sunlight modulation amplitude ΔTsol of the material is 11.8%, which is maintained above 10%. The average visible light transmittance Tlum of the material is 69.7%, which is 12.1% higher than that of the undoped VO2 film. The properties above meet the requirements for the application in thermochromic smart windows. This work provides scientific basis for the preparation of VO2 materials suitable for thermochromic smart windows.

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备注/Memo

备注/Memo:
Received: 2022-02-25; Accepted: 2022-04-30; Online (CNKI): 2022-06-12
Foundation: Science and Technology Plan of Guangdong Province (2016B090930011); Shenzhen Science and Technology R & D Program (20200812100442002, GJHZ20180929110606770)
Corresponding author: Professor L? Weizhong. E-mail: lvwzh@szu.edu.cn
Citation: L? Weizhong, ZHOU Qiaoting, ZHOU Tianzi, et al. Preparation and thermochromic properties of B-Mg co-doped nano-VO2 [J]. Journal of Shenzhen University Science and Engineering, 2022, 39(4): 440-446.(in Chinese)
基金项目:广东省科技计划资助项目(2016B090930011);深圳市科技研发计划资助项目(20200812100442002;GJHZ20180929110606770)
作者简介:吕维忠(1971—),深圳大学教授. 研究方向:纳米功能材料. E-mail: lvwzh@szu.edu.cn
引文:吕维忠,周俏婷,周天滋,等.B-Mg共掺杂纳米VO2的制备及其热致变色特性[J].深圳大学学报理工版,2022,39(4):440-446.
更新日期/Last Update: 2022-07-30