source:quantamagazineIn 2021, the Hayabusa2 space mission successfully delivered a morsel of the asteroid 162173 Ryugu to Earth — five grams of the oldest, most pristine matter left over from the solar system’s formation 4.5 billion years ago. Last spring, scientists revealed that the chemical composition of the asteroid includes 10 amino acids, the building blocks of proteins. The discovery added to the evidence that the primordial soup from which life on Earth arose may have been seasoned with amino acids from pieces of asteroids.But where did these amino acids come from? The amino acids flo...
Release time:
2023
-
01
-
05
viewed：1
Mg3Al2Si3O12 jeffbenite inclusion in super-deep diamonds is thermodynamically stable at very shallow Earth’s depthssource:natureAbstractJeffbenite (having the same chemical composition of pyrope, ~ Mg3Al2Si3O12, and also known as TAPP phase) is a mineral inclusion only found in diamonds formed between about 300 and 1000 km depth) and is considered a stable phase in the transition zone (410–660 km depth) and/or in the shallowest regions of the lower mantle (around 660–700 km depth). This rare and enigmatic mineral is considered to be a pressure marker for super-deep diamonds and therefore it ha...
Release time:
2023
-
01
-
04
viewed：2
source:autoevolutionMany companies want a piece of this. So Rice University scientists claim that their process Flash Joule Heating, invented in 2020, “can recover critical metals and recondition anodes in a far more environmentally and economically friendly manner.”Why do batteries die?It doesn’t matter that lithium-ion batteries are powering a smartphone or an EV. They eventually will reach end-of-life because their anodes are becoming useless. Anodes are made from several rare-earth elements, like manganese, nickel, or cobalt, which are combined in different ratios.Basically, charging and d...
Release time:
2023
-
01
-
03
viewed：1
Green Science Alliance Succeeded in Extracting Rare Metal from Lithium Ion Battery with Natural Deep Eutectic Solvent with Sustainable Method source:batteriesnewsGreen Science Alliance succeeded in extracting rare metal from lithium ion battery with natural deep eutectic solvent with sustainable method.Green Science Alliance developed a procedure to extract rare metal such as cobalt, nickel and manganese from cathode and black mass of lithium ion battery with their original natural deep eutectic solvent. Rechargeable batteries are extremely important technologies in order to establis...
Release time:
2022
-
12
-
31
viewed：2