Nissan develops photon upconversion solids to reduce emissions

Nissan develops photon conversion solids with outstanding performance to reduce CO2 emissions by increasing the efficiency of artificial photosynthesis

In collaboration with the Tokyo Institute of Technology, Nissan Motor Co., Ltd. has developed a solid photon upconversion (UC) material with outstanding performance that can increase the efficiency of artificial photosynthesis.

With artificial photosynthesis, water is broken down into oxygen and hydrogen. The hydrogen is then reacted with CO 2 to produce crude compounds, such as olefins, for the resin.

Nissan aims to achieve carbon neutrality throughout its product life cycle by 2050. This new technology will contribute to Nissan’s goals by increasing the use of CO2 as a feedstock, thereby reducing dependence on fossil fuels in the manufacture of resins and other products.

Nissan develops photon conversion solids to reduce emissions

The newly developed solid UC converts currently wasted long wavelength light into short wavelength light, which can be used in a variety of artificial photosynthesis applications. The conversion has high efficiency (up to about 30% of the theoretical limit of UC) even with weak sunlight.

The new UC material is a stable solid that can continue to function even in the presence of oxygen. They increase the amount of light energy available for artificial photosynthesis when combined with photocatalysts. Conventional UC materials are often flammable organic solvent solutions which, even when solidified, are generally poor in efficiency and resistance to light irradiation. This often requires an oxygen-free environment as well as high-intensity incident light.

Further details of this technology are described in “Materials Horizons” December 2021 issue , an academic journal of the Royal Society of Chemistry (UK).

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So Nissan developed photon upconversion solids with outstanding performance to reduce CO2 emissions.

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