Novel one-pot solvothermal synthesis and phase-transition mechanism of hexagonal CsxWO3 nanocrystals with superior near-infrared shielding property for energy-efficient windows

Shen，Boxu1; Ding，Siyuan2; Wang，Yuanhao3; Lu，Lin1; Yang，Hongxing1

2021-12-01

10.1016/j.solener.2021.10.057

SOLAR ENERGY   影响因子和分区

0038-092X

The controllable one-pot synthesis of hexagonal CsWO nanocrystals without post heat-treatment remains a great challenge in the field of nanocrystal materials. In this study, a facile one-pot method for controllable synthesis of CsWO nanocrystals was proposed using stable and relatively cheap ammonium metatungstate and cesium carbonate as starting materials. The reducibility of tartaric acid, tartaric acid with chloroplatinic acid was studied, and the possible synthetic mechanisms of CsWO nanocrystals with different crystalline phases were discussed in detail. The results indicate that tartaric acid chloroplatinic acid can promote the formation of the maximum W ions in the hexagonal CsWO nanocrystals. When the solid content in the dispersion reached 6 wt%, ordinary glass with the coating demonstrated the average visible light transmittance of 71.76% and the average near-infrared shielding ratio of 85.64%. This work is of great significance for synthesizing low-cost hexagonal CsWO nanocrystals without post heat-treatment and promoting the development of energy-efficient windows.

Ammonium metatungstate hydrate Energy-efficient windows Growth mechanism Hexagonal CsxWO3 nanocrystals Near-infrared shielding property Novel one-pot synthesis

EI ; SCI

英语

其他

WOS:000712662700003

20214311083471

Cesium compounds ; Energy efficiency ; Heat treatment ; Infrared devices ; Shielding

Energy Conservation:525.2 ; Heat Treatment Processes:537.1 ; Nanotechnology:761 ; Crystalline Solids:933.1

ENGINEERING

2-s2.0-85117817557

Scopus

1.Renewable Energy Research Group (RERG),Department of Building Services Engineering,The Hong Kong Polytechnic University,Kowloon,Hong Kong
2.School of Architecture,Tianjin University,Tianjin,300072,China
3.SUSTech Engineering Innovation Center,School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Shen，Boxu,Ding，Siyuan,Wang，Yuanhao,et al. Novel one-pot solvothermal synthesis and phase-transition mechanism of hexagonal CsxWO3 nanocrystals with superior near-infrared shielding property for energy-efficient windows[J]. SOLAR ENERGY,2021,230:401-408.

Shen，Boxu,Ding，Siyuan,Wang，Yuanhao,Lu，Lin,&Yang，Hongxing.(2021).Novel one-pot solvothermal synthesis and phase-transition mechanism of hexagonal CsxWO3 nanocrystals with superior near-infrared shielding property for energy-efficient windows.SOLAR ENERGY,230,401-408.

Shen，Boxu,et al."Novel one-pot solvothermal synthesis and phase-transition mechanism of hexagonal CsxWO3 nanocrystals with superior near-infrared shielding property for energy-efficient windows".SOLAR ENERGY 230(2021):401-408.