Sunlight has a major influence on chemical processes. Its high-energy UV radiation in particular is strongly absorbed by all materials and triggers photochemical reactions of the substances present in the air. A well-known ...
Optics & Photonics
Apr 10, 2024
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31
The interactions between phosphorous acid and the platinum catalyst in high-temperature PEM fuel cells are more complex than previously assumed. Experiments at BESSY II with tender X-rays have decoded the multiple oxidation ...
Analytical Chemistry
Apr 3, 2024
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107
Ammonia is one of the most widely produced chemicals in the world, and is used in a great many manufacturing and service industries. The conventional production technology is the Haber-Bosch process, which combines nitrogen ...
Analytical Chemistry
Mar 21, 2024
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8
Our Earth is around 4.5 billion years old. Way back in its earliest years, vast oceans dominated. There were frequent volcanic eruptions and, because there was no free oxygen in the atmosphere, there was no ozone layer. It ...
Planetary Sciences
Feb 25, 2024
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60
An international research team led by the Hong Kong University of Science and Technology (HKUST) has achieved a significant breakthrough by developing an artificial intelligence (AI) model that can help mitigate global ammonia ...
Agriculture
Feb 1, 2024
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16
Scientists at Oak Ridge National Laboratory are using a new modeling framework in conjunction with data collected from marshes in the Mississippi Delta to improve predictions of climate-warming methane and nitrous oxide emissions ...
Earth Sciences
Jan 26, 2024
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1
Nanoplastics (NPs) can cause a variety of adverse effects in humans, including physical damage, oxidative stress, impaired cell signaling, and developmental defects. The monitoring of NPs in the environment still remains ...
Polymers
Sep 8, 2023
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41
Air pollution dramatically reduces pollination because it degrades the scent of flowers, affecting bees' ability to find them, a study has found.
Plants & Animals
Sep 4, 2023
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246
Nitrous oxide has a much stronger effect on the climate than carbon dioxide. Soils, peatlands and rivers are potential nitrous oxide sources. However, when, where and how much nitrous oxide is emitted into the air has not ...
Earth Sciences
Aug 7, 2023
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58
In T-shirts, stockings, shirts, and ropes—or as a component of parachutes and car tires—polyamides are used everywhere as synthetic fibers. At the end of the 1930s, the name Nylon was coined for such synthetic polyamides. ...
Polymers
Jul 6, 2023
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