气候变化领域集成服务门户(CCPortal): Dynamic electrochromism for all-season radiative thermoregulation

CCPortal

DOI	10.1038/s41893-022-01023-2
	Dynamic electrochromism for all-season radiative thermoregulation
	Sui, Chenxi; Pu, Jiankun; Chen, Ting-Hsuan; Liang, Jiawei; Lai, Yi-Ting; Rao, Yunfei; Wu, Ronghui; Han, Yu; Wang, Keyu; Li, Xiuqiang; Viswanathan, Venkatasubramanian; Hsu, Po-Chun
发表日期	2022
ISSN	2398-9629
页码	10
英文摘要	Electrochromism provides a means to control transmittance of light for increased energy efficiency of buildings. Here the aqueous electrochromic design features tunable emissivity and allows for all-season radiative thermoregulation. Radiative thermoregulation can reduce the energy consumption for heating, ventilation and air-conditioning (HVAC) in buildings, and therefore contribute substantially to climate change mitigation. Electrochromism, a phenomenon in which a material exhibits reversible colour changes under an external electrical stimulus, can help control the heat balance of buildings in response to fluctuating weather conditions; however, its implementation has been largely limited to visible and near-infrared wavelength regimes. Here we develop an aqueous flexible electrochromic design for use as a building envelop based on graphene ultra-wideband transparent conductive electrode and reversible copper electrodeposition, in which the thermal emissivity can be tailored to vary between 0.07 and 0.92 with excellent long-term durability. Building energy simulations show that our design as building envelopes can save on year-round operational HVAC energy consumption across the United States by up to 43.1 MBtu on average in specific zones. Such dynamic emissivity tunability can further serve as a non-destructive technological solution to retrofit poorly insulated or historic buildings. Our work suggests a feasible pathway to radiative thermoregulation for more energy-efficient HVAC and solving some of the global climate change issues.
学科领域	Green & Sustainable Science & Technology; Environmental Sciences; Environmental Studies
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS记录号	WOS:000920854200006
来源期刊	NATURE SUSTAINABILITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272685
作者单位	University of Chicago; Duke University; Carnegie Mellon University; Ming Chi University of Technology; Zhejiang Sci-Tech University; Nanjing University of Aeronautics & Astronautics
推荐引用方式 GB/T 7714	Sui, Chenxi,Pu, Jiankun,Chen, Ting-Hsuan,et al. Dynamic electrochromism for all-season radiative thermoregulation[J],2022:10.
APA	Sui, Chenxi.,Pu, Jiankun.,Chen, Ting-Hsuan.,Liang, Jiawei.,Lai, Yi-Ting.,...&Hsu, Po-Chun.(2022).Dynamic electrochromism for all-season radiative thermoregulation.NATURE SUSTAINABILITY,10.
MLA	Sui, Chenxi,et al."Dynamic electrochromism for all-season radiative thermoregulation".NATURE SUSTAINABILITY (2022):10.