Tiny sediment grains are covered with a very fine-grained, complex mixture of minerals in an open fabric that results in a large surface area in contact with water between the grains. Scientists at the U.S. Geological Survey ...
Environment
Feb 23, 2009
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0
Trying to determine how negatively charged ions squeeze through a carbon nanotube 20,000 times smaller than a human hair is no easy feat.
Bio & Medicine
May 21, 2020
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59
Two pathways diverged in a chemical synthesis, and one molecule took them both. Chemists at the University of Tokyo have studied how molecular building blocks can either form a spherical cage or an ultrathin sheet that shows ...
Biochemistry
Nov 15, 2019
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77
Like a bull in a china shop, a massive, iodine-based ion called iodate should disrupt the surrounding water molecules until it is forcibly expelled. However, it doesn't. This disconnect between the molecule's attributes and ...
Materials Science
Nov 8, 2011
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In the context of global concerns about climate change and greenhouse gas control, a new technology for CO2 capture, utilization, and storage has attracted broad attention.
Analytical Chemistry
Jul 12, 2022
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259
Metal-ion hybrid capacitors combine the properties of capacitors and batteries. One electrode uses the capacitive mechanism, the other the battery-type redox processes. Scientists have now scrutinized the role of anions in ...
Materials Science
Nov 13, 2020
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24
Carbon dioxide from the atmosphere can dissolve in oceans, lakes and ponds, forming bicarbonate ions and other compounds that change water chemistry, with possible harmful effects on aquatic organisms. In addition, bicarbonate ...
Nanomaterials
Aug 25, 2021
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177
Anion exchange membrane fuel cells (AEMFCs) have gained attention in the process of fuel cell development because they operate in alkaline environments, the redox reaction rate at the electrodes is faster, and non-precious ...
Analytical Chemistry
Oct 2, 2023
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5
(Phys.org)—The pentazole molecule and its anion, cyclo-N5- has proven elusive to researchers for almost a century. The pentazole anion is highly unstable and cannot be made in bulk. Researchers from Nanjing University of ...
Lithium-ion batteries are relatively safe, long-lasting, fast charging and better for the environment than non-rechargeable batteries—right? Not quite. The rocking-chair mechanism that allows for commercial power storage ...
Materials Science
Jan 19, 2022
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