Sol-gel approaches to thermochromic vanadium dioxide coating for smart glazing application

Seyfouri, Mohammad Moein; Binions, Russell

doi:10.1016/j.solmat.2016.08.035

Cited by 93 publications

(44 citation statements)

References 126 publications

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“…Moreover, scaling VO 2 particles to nanoscale offers the possibility to further enhance its thermochromic performance at a moderate τ c . Several chemical and physical techniques have been reported to construct nanostructures of thermochromic VO 2 , including hydrothermal, magnetron sputtering, CVD, PVD, sol–gel, confined‐space combustion method, electrochemical and solution methods . Among them, vapor deposition is an efficient method for high quality VO 2 ‐film fabrication, but the equipment required for the film deposition is usually complex and expensive; a solution‐based deposition process is more cost effective, high‐yielding, and flexible, but it always suffers from multiple‐steps, lower purity, and small‐scale production .…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Magdassi

Gao

et al. 2017

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185

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Vanadium dioxide (VO ) is a widely studied inorganic phase change material, which has a reversible phase transition from semiconducting monoclinic to metallic rutile phase at a critical temperature of τ ≈ 68 °C. The abrupt decrease of infrared transmittance in the metallic phase makes VO a potential candidate for thermochromic energy efficient windows to cut down building energy consumption. However, there are three long-standing issues that hindered its application in energy efficient windows: high τ , low luminous transmittance (T ), and undesirable solar modulation ability (ΔT ). Many approaches, including nano-thermochromism, porous films, biomimetic surface reconstruction, gridded structures, antireflective overcoatings, etc, have been proposed to tackle these issues. The first approach-nano-thermochromism-which is to integrate VO nanoparticles in a transparent matrix, outperforms the rest; while the thermochromic performance is determined by particle size, stoichiometry, and crystallinity. A hydrothermal method is the most common method to fabricate high-quality VO nanoparticles, and has its own advantages of large-scale synthesis and precise phase control of VO . This Review focuses on hydrothermal synthesis, physical properties of VO polymorphs, and their transformation to thermochromic VO (M), and discusses the advantages, challenges, and prospects of VO (M) in energy-efficient smart windows application.

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Section: Introductionmentioning

confidence: 99%

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Magdassi

Gao

et al. 2017

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298

185

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“…4,5 At present, the categories of reversible thermochromic inorganic materials are limited, mainly vanadium dioxide (VO 2 ) and tungsten-or molybdenumbased oxides. [6][7][8][9] Therefore, the producing nontoxic and reversible inorganic thermochromic materials are pressing. Rare-earth iron garnet Y 3 Fe 5 O 12 and Sm 3 Fe 5 O 12 are reported to possess reversible thermochromic properties.…”

Section: Introductionmentioning

confidence: 99%

Size-dependent optical and thermochromic properties of Sm₃Fe₅O₁₂

Liu

Yuan

et al. 2017

RSC Adv.

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“…Smart thermal insulation coating, which can insulate heat when the outer temperature is too high and release heat when the outer temperature is too high, has drawn attention in recent years, as this kind of coating has both energy storage and thermal insulation functions. Thermochromic, photochromic, electrochromic, and gasochromic films are demonstrated for energy saving as different kinds of thermal insulation coatings [64][65][66][67][68][69][70][71][72][73]. By just taking thermo-chromic films for example, thermo-chromic materials are capable of changing their optical properties when exposed to heat.…”

Section: Smart Thermal Insulation Coatingsmentioning

confidence: 99%

Thermal Insulation Coatings in Energy Saving

Ye¹,

Chen²

2019

Energy-Efficient Approaches in Industrial Applications

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The surface temperature of object rises due to the accumulated heat when it absorbs solar energy, the excessive temperature caused by solar radiation will result in many inconveniences and even troubles in industrial production and daily life; in order to maintain the proper temperature of the object, a large amount of energy is consumed. The development of effective and economic thermal insulation materials is the key to meet the urgent needs for energy saving and emission reduction. In the face of variety of choices of thermal insulation materials, thermal insulation coating become more and more popular due to its good thermal insulation performance, economic, easy to use, and adaptability for a wide range of substrates. With the thermal insulation functional fillers (briefly called fillers in the following text) in coating system, the films can show a certain thermal insulation effect by reflecting, radiating, or isolating heat. As a result, when covered by thermal insulation coatings, the surface temperature of object would be greatly decreased. In this case, a large amount of energy consumed for cooling down the objects exposed to sunlight could be saved, which means the energy consumption can be reduced effectively by just covering with a thermal insulation coating on the surface of object.

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Sol-gel approaches to thermochromic vanadium dioxide coating for smart glazing application

Cited by 93 publications

References 126 publications

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Size-dependent optical and thermochromic properties of Sm₃Fe₅O₁₂

Thermal Insulation Coatings in Energy Saving

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Sol-gel approaches to thermochromic vanadium dioxide coating for smart glazing application

Cited by 93 publications

References 126 publications

Hydrothermal Synthesis of VO2 Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO2 Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Size-dependent optical and thermochromic properties of Sm3Fe5O12

Thermal Insulation Coatings in Energy Saving

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Product

Resources

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Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Hydrothermal Synthesis of VO₂ Polymorphs: Advantages, Challenges and Prospects for the Application of Energy Efficient Smart Windows

Size-dependent optical and thermochromic properties of Sm₃Fe₅O₁₂