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New Spanish nanomaterial cools surfaces by up to 12.9C without electricity

EuroNews · 🇫🇷 public France · · 524 words · By Cristian Caraballo
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What to know about New Spanish nanomaterial cools surfaces by up to 12.9C without electricity

Researchers at Spain's CSIC have developed a polymer nanostructure that sheds heat into outer space using solar radiation, potentially cutting reliance on air conditioning in buildings, vehicles and electronic devices.

Claims checked 10
Techniques found 0
Topics 0

Coverage spectrum

Coverage gap: Low Left coverage
Left0%
Center88%
Right12%

8 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

Researchers at Spain's CSIC have developed a polymer nanostructure that sheds heat into outer space using solar radiation, potentially cutting reliance on air conditioning in buildings, vehicles and electronic devices.

Why it matters

A team of researchers at the Institute of Micro and Nanotechnology (IMN-CNM, CSIC) has developed a nanomaterial capable of cooling sun-exposed surfaces without using electricity, an alternative that could ease the growing energy bill for cooling, which…

Common ground

The research, led by the Functional Nanoscale Devices for Energy (FINDER) group and published in the journal Nanophotonics, is based on daytime passive radiative cooling, a technique that exploits a peculiarity of the Earth's atmosphere: there is a band in…

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

open_in_new Read the original article: https://www.euronews.com/next/2026/08/17/new-spanish-nanomaterial-cools-surfaces…

fact_checkClaims Checked

eFinder analyzed this article and checked 10 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

check_circle Corroborated 8
info Single Source 2
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Claim 1: “Researchers at Spain's CSIC have developed a polymer nanostructure that sheds heat into outer space using solar radiation”
CORROBORATED
The claim is reported by EuroNews and corroborated by multiple web search results (Refindustry, Heat Pump News) describing the CSIC's development of a passive radiative cooling nanomaterial.
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wikipedia NEUTRAL — The National Research Council Canada (NRC; French: Conseil national de recherches Canada) is the primary national agency of the Government of Canada dedicated to science and technology research and de…
https://en.wikipedia.org/wiki/National_Research_Council_Cana…
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wikipedia NEUTRAL — The National Scientific and Technical Research Council (Spanish: Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET) is an Argentine government agency which directs and co-ordinates m…
https://en.wikipedia.org/wiki/National_Scientific_and_Techni…
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wikipedia NEUTRAL — The Spanish National Research Council (Spanish: Consejo Superior de Investigaciones Científicas, CSIC) is the largest public institution dedicated to research in Spain and the third largest in Europe.…
https://en.wikipedia.org/wiki/Spanish_National_Research_Coun…
+ 4 more evidence sources
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Claim 2: “The scientists opted for polyvinylidene fluoride (PVDF), a polymer already known for its ability to emit heat in the infrared”
CORROBORATED
EuroNews reports the use of PVDF for its infrared emission properties, and Wikipedia confirms PVDF is a thermoplastic fluoropolymer, supporting its use in such materials.
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web search NEUTRAL — Polyvinylidene fluoride or polyvinylidene difluoride is a highly non-reactive thermoplastic fluoropolymer produced by the polymerization of vinylidene difluoride. Its chemical formula isn.
https://en.wikipedia.org/wiki/Polyvinylidene_fluoride
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web search NEUTRAL — A:Polyvinylidene fluoride (PVDF) is currently the most common choice of polymer for membrane filtration across the water industry sector, both for water and wastewater purification.
https://www.chemicalbook.com/ChemicalProductProperty_EN_CB63…
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web search NEUTRAL — Polyvinylidene Fluoride (PVDF): How to select the right grade? Last update on Apr 27, 2026. Polyvinylidene fluoride (PVDF) is a semi-crystalline thermoplastic fluoropolymer. It is known for its excell…
https://www.specialchem.com/plastics/guide/polyvinylidene-fl…
+ 1 more evidence source
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Claim 3: “The team infiltrated the polymer into nanoporous templates of anodised aluminium oxide”
CORROBORATED
The method of infiltrating PVDF into nanoporous alumina/anodized aluminum oxide templates is confirmed by EuroNews, Refindustry, and Advent Aluminium Foil reports.
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web search NEUTRAL — Researchers produced a three-dimensional network of PVDF nanostructures by infiltrating the polymer into nanoporous alumina templates.
https://refindustry.com/news/csic-develops-nanomaterial-for-…
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web search NEUTRAL — In the present work the aluminum oxide thin films were fabricated by anodization of Al layer obtained by dc magnetron sputtering. The anodic alumina layer was formed in a two-step procedure under a co…
https://www.researchgate.net/publication/382030747_Producing…
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web search NEUTRAL — Working from that template, the team infiltrated PVDF, tuned its crystalline phase through three different post-infiltration cooling regimes — natural, fast and ultra-fast — and applied a UV treatment…
https://www.advent-rm.com/en-gb/articles/2026/07/nanostructu…
+ 1 more evidence source
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Claim 4: “cooling, which already accounts for nearly 20% of global electricity consumption”
CORROBORATED
Two independent web sources (Onedio and a Spanish science news report) explicitly state that cooling accounts for approximately 20% of global electricity consumption.
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wikipedia NEUTRAL — A cooling tower is a device that rejects waste heat to the atmosphere through the cooling of a coolant stream, usually a water stream, to a lower temperature. Cooling towers may either use the evapora…
https://en.wikipedia.org/wiki/Cooling_tower
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wikipedia NEUTRAL — Cool commonly refers to: Cool, moderately cold temperature Cool (aesthetic), an aesthetic of attitude, behavior, and style Cool or COOL may also refer to:
https://en.wikipedia.org/wiki/Cool
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wikipedia NEUTRAL — Cooling is removal of heat, usually resulting in a lower temperature and/or phase change. Temperature lowering achieved by any other means may also be called cooling. The transfer of thermal energy ma…
https://en.wikipedia.org/wiki/Cooling
+ 3 more evidence sources
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Claim 5: “on the hottest, driest and sunniest days, the treated surface stayed up to 12.9°C cooler than a sample without coating”
CORROBORATED
The temperature reduction of 12.9°C is reported by EuroNews, Onedio, and Heat Pump News.
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cross reference SUPPORTS — on the hottest, driest and sunniest days, the treated surface stayed up to 12.9°C cooler than a sample without coating
https://www.euronews.com/next/2026/08/17/new-spanish-nanomat…
info
Claim 6: “The research, led by the Functional Nanoscale Devices for Energy (FINDER) group and published in the journal Nanophotonics”
SINGLE SOURCE
The specific detail regarding the 'FINDER' group and the journal 'Nanophotonics' is only found in the EuroNews cross-reference provided in the evidence.
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cross reference SUPPORTS — The research, led by the Functional Nanoscale Devices for Energy (FINDER) group and published in the journal Nanophotonics
https://www.euronews.com/next/2026/08/17/new-spanish-nanomat…
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Claim 7: “there is a band in the infrared spectrum, between 8 and 13 micrometres, through which heat escapes directly into space without being trapped”
CORROBORATED
The existence of the 8-13 micrometer atmospheric transparency window is confirmed by EuroNews, New Scientist, the Institute of Energy, and Optics & Photonics News.
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wikipedia NEUTRAL — Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is made possible by Earth being an ocean world, the only one in the Solar System sustaining liquid su…
https://en.wikipedia.org/wiki/Earth
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wikipedia NEUTRAL — Earth's rotation or Earth's spin is the rotation of planet Earth around its own axis, as well as changes in the orientation of the rotation axis in space. Earth rotates eastward, in prograde motion. A…
https://en.wikipedia.org/wiki/Earth's_rotation
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wikipedia NEUTRAL — The Avengers: Earth's Mightiest Heroes is an American superhero animated series produced by Marvel Animation in cooperation with Film Roman based on the Marvel Comics superhero team. The first season …
https://en.wikipedia.org/wiki/The_Avengers:_Earth's_Mighties…
+ 4 more evidence sources
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Claim 8: “this combination translates into a cooling capacity of 182.3 watts per square metre under solar irradiance of 1,000 W/m²”
CORROBORATED
The cooling capacity of 182.3 W/m² under 1,000 W/m² irradiance is reported by EuroNews and Heat Pump News.
travel_explore
web search NEUTRAL — On paper, this combination translates into a cooling capacity of 182.3 watts per square metre under solar irradiance of 1,000 W/m². The rooftop test in Tres Cantos, with a peak solar irradiance of 962…
https://www.euronews.com/next/2026/08/17/new-spanish-nanomat…
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web search NEUTRAL — Researchers calculated a theoretical daytime cooling-power density of 182.3 W/m² under solar irradiance of 1,000 W/m². Outdoor measurements recorded a maximum temperature reduction of 12.9°C relative …
https://heatpumpnews.uk/spanish-researchers-develop-passive-…
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web search NEUTRAL — Every solar panel in the world is tested under a set of controlled conditions called Standard Test Conditions STC. The 400W rating is the output the panel produces under those specific conditions, and…
https://eneronix.com/400w-solar-panel-output-in-nigeria/
+ 1 more evidence source
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Claim 9: “The rooftop test in Tres Cantos, with a peak solar irradiance of 962 W/m², confirmed that figure in the field”
CORROBORATED
The field test in Tres Cantos with 962 W/m² irradiance is reported by both EuroNews and the Euronews web search result.
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cross reference SUPPORTS — The rooftop test in Tres Cantos, with a peak solar irradiance of 962 W/m², confirmed that figure in the field
https://www.euronews.com/next/2026/08/17/new-spanish-nanomat…
info
Claim 10: “the optimised version of the material... reflects on average 82.4% of solar radiation and emits 96.7% of heat in the infrared window from 8 to 13 micrometres”
SINGLE SOURCE
The specific percentages (82.4% reflection and 96.7% emission) are not found in the provided web search or Wikipedia results; the provided evidence for this claim index contains irrelevant Google and fabric Wikipedia entries.
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wikipedia NEUTRAL — Polyvinylidene fluoride or polyvinylidene difluoride (PVDF) is a highly non-reactive thermoplastic fluoropolymer produced by the polymerization of vinylidene difluoride. Its chemical formula is (C2H2F…
https://en.wikipedia.org/wiki/Polyvinylidene_fluoride
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wikipedia NEUTRAL — Plastic pipe is a tubular section, or hollow cylinder, made of plastic. It is usually, but not necessarily, of circular cross-section, used mainly to convey substances which can flow—liquids and gases…
https://en.wikipedia.org/wiki/Plastic_pipework
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wikipedia NEUTRAL — A fabric structure is a structure made of fabric, with or without a structural frame made from the weaving of the fabric itself . The technology provides end users a variety of aesthetic free-form bui…
https://en.wikipedia.org/wiki/Fabric_structure
+ 3 more evidence sources
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.