Academic Journal

A Polymer Nanocomposite with Strong Full‐Spectrum Solar Absorption and Infrared Emission for All‐Day Thermal Energy Management and Conversion

Bibliographic Details
Title: A Polymer Nanocomposite with Strong Full‐Spectrum Solar Absorption and Infrared Emission for All‐Day Thermal Energy Management and Conversion
Authors: Li, Xiangxin, Zhang, Zipeng, Zhang, Xueting, Cao, Yanxia, Yang, Yanyu, Wang, Wanjie, Wang, Jianfeng
Contributors: National Natural Science Foundation of China, China Postdoctoral Science Foundation
Superior Title: Advanced Science ; volume 11, issue 15 ; ISSN 2198-3844 2198-3844
Publisher Information: Wiley
Publication Year: 2024
Collection: Wiley Online Library (Open Access Articles via Crossref)
Subject Terms: General Physics and Astronomy, General Engineering, Biochemistry, Genetics and Molecular Biology (miscellaneous), General Materials Science, General Chemical Engineering, Medicine (miscellaneous)
Description: Realizing efficient energy utilization from the heat source of the sun and the cold source of outer space is of great significance for addressing the global energy and environmental crisis. Materials with ideal full‐spectrum solar absorption and infrared emission are highly desirable for adapting to the continuous weather dynamic throughout the day, nonetheless, their development remains challenging. Here, a polymer nanocomposite with full‐spectrum strong solar (280–2500 nm) absorption ranging from 88.8% to 94.8% with an average value of 93.2% and full‐spectrum high infrared (8–13 µm) emission ranging from 81.3% to 90.0% with an average value of 84.2%, is reported by melt‐processing polypropylene and uniformly dispersed low‐loading MXene nanosheets (1.9 vol%). The nanocomposite can achieve daytime photothermal enhancement of ≈50 °C and nighttime radiative cooling of 8 °C. The temperature difference throughout the day ensures all‐day uninterrupted thermoelectric generation, yielding a power density output of 1.5 W m −2 (daytime) and 7.9 mW m −2 (nighttime) in real outdoor environment without any additional energy consumption. This work provides an impressive polymer nanocomposite with ideal full‐spectrum solar absorption and infrared emission for all‐day uninterrupted thermal energy management and conversion.
Document Type: article in journal/newspaper
Language: English
DOI: 10.1002/advs.202308200
Availability: https://doi.org/10.1002/advs.202308200
Rights: http://creativecommons.org/licenses/by/4.0/
Accession Number: edsbas.6B4D722C
Database: BASE
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