铝掺杂铯钨青铜耐湿热稳定及透明隔热性能研究

doi:10.11896/cldb.25080215

材料导报

2026, Vol. 40

Issue (12): 25080215-7 https://doi.org/10.11896/cldb.25080215

光热调控超材料的应用与创新

铝掺杂铯钨青铜耐湿热稳定及透明隔热性能研究

张经纬¹, 曹曌¹, 季晓广¹, 郭建辉^1,*, 刘波^2,*, 李文靓², 龚春红³

1 河南大学纳米杂化材料应用技术国家地方联合工程研究中心,河南开封 475000
2 成都先进金属材料产业技术研究院有限公司,成都 610300
3 河南大学化学与分子科学学院,河南开封 475000

Study on the Hygrothermal Stability and Transparent Thermal Insulation Properties of Aluminum-doped Cesium Tungsten Bronze

ZHANG Jingwei¹, CAO Zhao¹, JI Xiaoguang¹, GUO Jianhui^1,*, LIU Bo^2,*, LI Wenjing², GONG Chunhong³

1 National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng 475000, Henan, China
2 Chengdu Advanced Metal Materials Industry Technology Research Institute Co., Ltd., Chengdu 610300, China
3 College of Chemistry and Molecular Sciences, Henan University, Kaifeng 475000, Henan, China

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摘要铯钨青铜(Cs_0.32WO₃)因其高可见光透过率和优异的近红外屏蔽性能,在智能节能窗领域极具应用潜力,但其光学性能易受环境中水、氧、热、光等因素影响而劣化。本工作提出一种铝单质还原-氧化掺杂策略,结合固相法,成功制备了铝掺杂铯钨青铜纳米材料(Al-Cs_0.32WO₃),显著提升了材料的湿热稳定性。铝掺杂不仅抑制晶粒生长,有效降低颗粒尺寸,还赋予材料优异的耐湿热稳定性。随着铝(Al)掺量增大,铝原子在晶界处的异质界面效应抑制了晶粒生长,使得Cs_0.32WO₃的平均粒径从初始的约176 nm逐渐减小至81 nm以下。将0.5%(质量分数)Al掺量的铯钨青铜(0.5%Al-Cs_0.32WO₃)与聚乙烯醇缩丁醛(PVB)进行复合制备薄膜,其在550 nm可见光透过率达71.6%时,950 nm近红外屏蔽率为92.8%,320 nm紫外屏蔽率高达99.2%,具有优异的透明隔热性能。经“双85”条件(温度85 ℃,相对湿度85%)测试,0.5%Al-Cs_0.32WO₃样品在加速老化60 d后近红外屏蔽性能仅衰减2.3%,显著优于未掺杂Cs_0.32WO₃样品(衰减4.0%),表现出优异的耐湿热稳定性。该研究为铯钨青铜在节能建筑中的产业化应用提供了关键技术支撑和性能优化策略。

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关键词: 铯钨青铜铝掺杂固相法透明隔热耐湿热

Abstract: Cesium tungsten bronze (Cs_0.32WO₃) has emerged as a promising candidate for smart energy-saving windows due to its exceptional near-infrared (NIR) shielding properties while maintaining high visible-light transmittance. However, the practical implementation of this material is constrained by its susceptibility to environmental degradation under prolonged exposure to moisture, oxygen, heat, and light irradiation. In this study, we presented an innovative elemental aluminum reduction-oxidation doping approach through solid-phase processing, which enabled the successful synthesis of aluminum-doped cesium tungsten bronze (Al-Cs_0.32WO₃) nanomaterials with markedly enhanced environmental stability. The aluminum doping strategy not only suppressed grain growth, reducing the average particle size from 176 nm to below 81 nm, but also improved moisture-heat resistance. Systematic investigation revealed that increasing Al doping concentration induced a heterogeneous interfacial effect at grain boundaries, effectively inhibiting crystallite growth. A polyvinyl butyral (PVB)-based composite film incorporating 0.5%Al-Cs_0.32WO₃ demonstrated exceptional optical performance, achieving 71.6% visible light transmittance at 550 nm, 92.8% NIR shielding efficiency at 950 nm and 99.2% UV blocking at 320 nm. More importantly, accelerated aging tests (85 ℃/85% RH for 60 days) revealed that the 0.5%Al-Cs_0.32WO₃ sample exhibited superior stability, with only a 2.3% reduction in NIR shielding performance, compared to the 4.0% degradation observed in undoped Cs_0.32WO₃. This work provides critical technical insights for the industrial application of Cs_0.32WO₃ in energy-efficient building materials, addressing the longstanding stability challenges in practical implementations.

Key words: cesium tungsten bronze aluminum doping solid-phase method transparent thermal insulation hygrothermal stability

出版日期: 2026-06-25 发布日期: 2026-07-08

ZTFLH:

TB34

基金资助: 河南省重点研发专项(241111231800);河南省科技攻关项目(252102230145)

通讯作者: ^*郭建辉,博士,河南大学纳米杂化材料应用技术国家地方联合工程研究中心副教授、硕士研究生导师。目前主要从事透明隔热纳米材料(铯钨青铜、二氧化钒等)的宏量制备及产业化应用等方面的研究。gjh78@henu.edu.cn
刘波,高级工程师,成都先进金属材料产业技术研究院股份有限公司高级研究员。目前主要从事钒精细化工产品开发及产业化应用等方面的研究。CSU_liubo@163.com

作者简介: 张经纬,博士,河南大学纳米杂化材料应用技术国家地方联合工程研究中心教授、博士研究生导师。主要从事纳米材料的结构设计、宏量制备及其在能量转化与存储领域的应用研究。

引用本文:

张经纬, 曹曌, 季晓广, 郭建辉, 刘波, 李文靓, 龚春红. 铝掺杂铯钨青铜耐湿热稳定及透明隔热性能研究[J]. 材料导报, 2026, 40(12): 25080215-7.
ZHANG Jingwei, CAO Zhao, JI Xiaoguang, GUO Jianhui, LIU Bo, LI Wenjing, GONG Chunhong. Study on the Hygrothermal Stability and Transparent Thermal Insulation Properties of Aluminum-doped Cesium Tungsten Bronze. Materials Reports, 2026, 40(12): 25080215-7.

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https://www.mater-rep.com/CN/10.11896/cldb.25080215 或 https://www.mater-rep.com/CN/Y2026/V40/I12/25080215

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