With the rapid development of smart portable electronics and electric vehicles, the consumption of lithium resources will increase dramatically and the cost of lithium-ion batteries (LIBs) may increase significantly in the ...
Materials Science
Jan 11, 2021
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5
A Japanese research team elucidated the microscopic mechanism in which amorphous silica becomes negatively charged as a vibrational energy harvester, which is anticipated to achieve self-power generation without charging, ...
Condensed Matter
Nov 11, 2020
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14
A layered material developed by KAUST researchers can act as a precise temperature sensor by exploiting the same principle used in biological ion channels.
Nanomaterials
Oct 12, 2020
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57
Pioneering new research has helped geologists solve a long-standing puzzle that could help pinpoint new, untapped concentrations of some the most valuable rare earth deposits.
Earth Sciences
Oct 09, 2020
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172
A study led by researchers from Tasmania, Chile and Germany has furthered our understanding of plant evolution by tracking the origins of electrical signaling components that plants developed to communicate and adapt to life ...
Plants & Animals
Sep 03, 2020
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75
A team of researchers from the University of Oxford, the University of Marburg and Bayer Pharmaceuticals has developed a way to describe the three-dimensional molecular structure of TASK channels. In their paper published ...
A technology to further accelerate the commercialization of Colloidal Quantum Dot (CQD) Photovoltaic (PV) devices, which are expected to be next-generation photovoltaic devices, has been developed.
Materials Science
Apr 10, 2020
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46
In the past, biologically-active peptides—small proteins like neurotoxins and hormones that act on cell receptors to alter physiology—were purified from native sources like venoms and then panels of variants were produced ...
Biochemistry
Mar 05, 2020
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83
Doctors often tell their patients to reduce their salt intake as part of a healthy lifestyle. When we start looking at food labels, we may find salt in surprising places—like baked goods, drinks and canned foods.
Environment
Feb 10, 2020
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6
Australian scientists have developed a nonflammable electrolyte for potassium and potassium-ion batteries, for applications in next-generation energy-storage systems beyond lithium technology. In the journal Angewandte Chemie, ...
Analytical Chemistry
Jan 31, 2020
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Potassium (pronounced /pɵˈtæsiəm/) is the chemical element with the symbol K (Latin: kalium, from Arabic: القَلْيَه al-qalyah “plant ashes”, cf. Alkali from the same root), atomic number 19, and atomic mass 39.0983. Potassium was first isolated from potash. Elemental potassium is a soft silvery-white metallic alkali metal that oxidizes rapidly in air and is very reactive with water, generating sufficient heat to ignite the evolved hydrogen.
Potassium in nature occurs only as ionic salt. As such, it is found dissolved in seawater, and as part of many minerals. Potassium ion is necessary for the function of all living cells, and is thus present in all plant and animal tissues. It is found in especially high concentrations in plant cells, and in a mixed diet, it is most highly concentrated in fruits.
In many respects, potassium and sodium are chemically similar, although they have very different functions in organisms in general, and in animal cells in particular.
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