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作 者:鲍艳 谢梦爽 郭茹月 张婧 BAO Yan;XIE Mengshuang;GUO Ruyue;ZHANG Jing(College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science&Technology,Xi'an 710021,China;College of Medicine and Chemical Engineering,Xianyang Polytechnic Institute,Xianyang 712000,Shaanxi,China)
机构地区:[1]陕西科技大学轻工科学与工程学院,西安710021 [2]咸阳职业技术学院医药化工学院,陕西咸阳712000
出 处:《材料导报》2025年第7期54-60,共7页Materials Reports
基 金:国家自然科学基金(22378253;22078188);咸阳市科技计划项目(2021ZDZX-GY-0007);陕西省科技厅项目(2022GY-170)。
摘 要:二氧化钒(VO2)是一种典型的二元过渡金属氧化物,具有金属-绝缘体相变特性,在约68℃时可实现单斜绝缘相和稳定金红石金属相的可逆转变,因而在建筑领域具有良好的应用前景。近年来,VO2的制备工艺已相对成熟,但其热致变色性能的提升仍是研究的重点。基于此,本文从VO2的热致变色性能调控出发,旨在概述VO2智能调温涂层的研究进展。首先,总结了VO2相变前后的晶体结构和能带结构变化,并详细讨论了基于Mott理论、Peierls理论以及Mott与Peierls协同理论的三种相变机理;其次,总结了元素掺杂对VO2相变温度的影响规律,进一步阐明了核壳结构和多层膜结构等结构设计对VO2光学性能、抗氧化性以及环境稳定性等综合性能的增强原理,分析比较了各自的特点和优势;最后,指出了VO2现阶段存在的问题,并对其未来发展进行了展望,以期为相关领域的研究人员提供借鉴。Vanadium dioxide(VO_(2)),a typical binary transition metal oxide,has the characteristics of metal-insulator phase transformation,which can achieve the reversible transformation of monoclinic insulating phase and stable rutile metal phase at about 68℃,and it has a good application prospect in the construction field for it.In recent years,the preparation technology for VO_(2) has been relatively mature,but the improvement of its thermochromic performance is still the focus of research.Based on it,with the thermochromic performance control of VO_(2) as the center,this paper summarized the research progress of VO_(2) intelligent temperature control coatings.Firstly,the crystal structure and band structure changes of VO_(2) before and after the phase transition are summarized,and the three phase transition mechanisms based on the Mott theory,the Peierls theory and the Mott-Peierls synergy theory are discussed in detail.Secondly,the influence of elemental doping on the phase transition temperature of VO_(2) is clarified,and the enhancement principle of the structural design of core-shell structure and multilayer film structure on the comprehensive properties of VO_(2) such as optical properties,oxidation resistance and environmental stability is further clarified.Moreover,the characteristics and advantages of each strategy are analyzed and compared.Finally,the existing problems of VO_(2) at the present stage are pointed out,and its future development is prospected.It is helpful to provide reference for researchers in related fields.
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