A radiative cooling structural material.

Journal

Science (New York, N.Y.)
ISSN: 1095-9203
Titre abrégé: Science
Pays: United States
ID NLM: 0404511

Informations de publication

Date de publication:
24 May 2019
Historique:
received: 27 07 2018
revised: 08 11 2018
accepted: 22 04 2019
entrez: 25 5 2019
pubmed: 28 5 2019
medline: 28 5 2019
Statut: ppublish

Résumé

Reducing human reliance on energy-inefficient cooling methods such as air conditioning would have a large impact on the global energy landscape. By a process of complete delignification and densification of wood, we developed a structural material with a mechanical strength of 404.3 megapascals, more than eight times that of natural wood. The cellulose nanofibers in our engineered material backscatter solar radiation and emit strongly in mid-infrared wavelengths, resulting in continuous subambient cooling during both day and night. We model the potential impact of our cooling wood and find energy savings between 20 and 60%, which is most pronounced in hot and dry climates.

Identifiants

DOI: 10.1126/science.aau9101 PMID: 31123132
pubmed: 31123132
pii: 364/6442/760
doi: 10.1126/science.aau9101
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

760-763

Informations de copyright

Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.

Auteurs

Tian Li (T)

Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA.
ORCID: 0000-0002-1087-0662

Yao Zhai (Y)

Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA.
ORCID: 0000-0002-0224-0492

Shuaiming He (S)

Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA.
ORCID: 0000-0002-6130-0352

Wentao Gan (W)

Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA.
ORCID: 0000-0002-2498-6500

Zhiyuan Wei (Z)

Materials Sciences and Engineering Program, University of Colorado Boulder, Boulder, CO 80309, USA.
ORCID: 0000-0002-3087-3705

Mohammad Heidarinejad (M)

Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA.
ORCID: 0000-0002-3064-825X

Daniel Dalgo (D)

Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA.

Ruiyu Mi (R)

Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA.
ORCID: 0000-0002-1406-6057

Xinpeng Zhao (X)

Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA.
ORCID: 0000-0002-9522-6170

Jianwei Song (J)

Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA.
ORCID: 0000-0001-6314-7171

Jiaqi Dai (J)

Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA.

Chaoji Chen (C)

Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA.
ORCID: 0000-0001-9553-554X

Ablimit Aili (A)

Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA.

Azhar Vellore (A)

Department of Mechanical Engineering, University of California, Merced, Merced, CA 95340, USA.
ORCID: 0000-0003-0848-7899

Ashlie Martini (A)

Department of Mechanical Engineering, University of California, Merced, Merced, CA 95340, USA.
ORCID: 0000-0003-2017-6081

Ronggui Yang (R)

Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA.
School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, P.R. China.
ORCID: 0000-0002-3602-6945

Jelena Srebric (J)

Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA.
ORCID: 0000-0001-6825-5091

Xiaobo Yin (X)

Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA. binghu@umd.edu xiaobo.yin@colorado.edu.
Materials Sciences and Engineering Program, University of Colorado Boulder, Boulder, CO 80309, USA.
ORCID: 0000-0002-8344-9166

Liangbing Hu (L)

Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA. binghu@umd.edu xiaobo.yin@colorado.edu.
ORCID: 0000-0002-9456-9315

Classifications MeSH