Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry
catalysis by aphotocatalyst
Etymologies
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Examples
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Bo-Erik Eriksson, head of research at Cementa, another company participating in the Swedish-Finnish project, said the byproducts of the reaction, called photocatalysis, are benign, though it depends on what substances are involved: Organic compounds are broken down into carbon dioxide and water, while the nitrogen oxides yield nitrate salts.
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You might bring up photocatalysis which is highly inefficient compared to 18\% efficient standard photovoltaics.
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You might bring up photocatalysis which is highly inefficient compared to 18\% efficient standard photovoltaics.
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The problem is that the photocatalysis I describe above takes place in water solution, usually also in air, and that's an _extreme_ chemical environment for something like silicon.
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The thinness of the silica layer is critical: it has to be just thick enough to block the photocatalysis, but not so thick that it degrades the optical properties of the TiO2.
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Other, more application-specific examples are solar cells and photocatalysis.
PhysOrg.com - latest science and technology news stories 2010
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Other, more application-specific examples are solar cells and photocatalysis.
PhysOrg.com - latest science and technology news stories 2010
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It combines photosynthesis with photocatalysis to rapidly grow biomass while purifying wastewaters and salt water.
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The experts at EnBW are investigating the energy, emission and cost balances of the overall process - from the power plant waste gas through the actual photocatalysis up to the utilization of the products.
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Possible research areas include but are not limited to: photocatalysis, photovoltaics, catalysis (biofuel and fossil); energy efficiency, harvesting, and storage; energy systems and smart grid technology; and the intersection between energy technology and policy.
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