National Institute for Materials Science (NIMS)

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National Institute for Materials Science (NIMS) articles

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Nanoparticle boosts solar-powered water heating

Nanoparticle boosts solar-powered water heating
A highly-efficient, nanoparticle-based method for heating water and generating water vapor from sunlight is demonstrated by WPI-MANA scientists. Solar energy could provide a renewable, sustainable source of power for our daily needs. However, even the most state-of-the-art solar cells struggle to achieve energy conversion efficiency of higher than 30%. While current solar-powered water heaters fare better in terms of energy efficiency, there are still improvements to be made if the systems are to be used more widely.
21st November 2016


Efficient solar water heating achieved with nanoparticles

Efficient solar water heating achieved with nanoparticles
  A research team in Japan discovered through numerical calculations that nanoparticles of transition metal nitrides and carbides absorb sunlight very efficiently, and confirmed experimentally that nitride nanoparticles, when dispersed in water, quickly raise water temperature.
17th June 2016


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